Document:

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                                                                   EXHIBIT 10.14
                                                                   -------------

                                                                  EXECUTION COPY

                               ADVISORY AGREEMENT

         ADVISORY AGREEMENT (this "AGREEMENT"), dated as of February 12, 2004,
between PLY GEM INDUSTRIES, INC., a Delaware corporation (the "COMPANY") and
CXCIC LLC, a Delaware limited liability company ("CIC").

         WHEREAS, pursuant to a Stock Purchase Agreement, dated as of December
19, 2003 (the "STOCK PURCHASE AGREEMENT"), among Ply Gem Investment Holdings,
Inc., f/k/a CI Investment Holdings, Inc., (the "PARENT"), Nortek, Inc. and WDS
LLC (together with Nortek, Inc., the "SELLERS"), the Sellers have agreed to
sell, upon the terms and subject to the conditions set forth therein, all of the
outstanding shares of stock of the Company to the Parent (the "ACQUISITION");

         WHEREAS, simultaneously with the execution and delivery of this
Agreement, the Parent, through its wholly owned subsidiary, Ply Gem Holdings,
Inc., is consummating the Acquisition;

         WHEREAS, the Company desires for CIC to provide certain ongoing
advisory and management services to the Company, and CIC is willing to provide
such services subject to the terms and conditions contained herein; and

         WHEREAS, all capitalized terms used in this Agreement but not otherwise
defined herein shall have the meaning ascribed to them in the Stock Purchase
Agreement.

         NOW, THEREFORE, for good and valuable consideration, the receipt of
which is hereby acknowledged, the parties hereto agree as follows:

         SECTION 1.        SERVICES. During the term of this Agreement, CIC
shall provide such acquisition and financial advisory services to the Company
and its subsidiaries as the Board of Directors of the Company shall reasonably
request, including without limitation: general executive and management
services; assistance with the identification, support, negotiation and analysis
of acquisitions and dispositions; assistance with the support, negotiation and
analysis of financial alternatives; and human resource functions.

         SECTION 2.        COMPENSATION.

                  (a)      In consideration of the services to be provided in
accordance with Section 1, but subject to Sections 2(d) and 2(e), the Company
shall pay to CIC, for each fiscal year of the Company, an advisory fee (the
"ANNUAL FEE") equal to 2% of the Company's EBITDA (as defined below) for such
fiscal year. The Annual Fee shall be pro rated for partial years. The Annual Fee
for each fiscal year shall be paid in 12 installments, payable on or before the
10th day of each month (other than the first month) of such fiscal year and the
first month of the next fiscal year, in an amount equal to 2% of the Company's
EBITDA for the previous month. Notwithstanding the foregoing, at the election of
either CIC or the Company, the Annual Fee for such fiscal

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year may be paid in one installment in an amount equal to 99% of the estimated
Annual Fee for such fiscal year (the "ESTIMATED DISCOUNTED ANNUAL FEE"), payable
at any time on or after the Closing, in the case of the Annual Fee for fiscal
year 2004, and on or before the first day of the last month of the Company's
preceding fiscal year, in the case of the Annual Fee for each fiscal year after
fiscal year 2004; PROVIDED, HOWEVER, that if it is determined after the
calculation of the Company's EBITDA for such fiscal year that the amount of such
payment is less than or greater than 99% of the actual Annual Fee for such
fiscal year (the "ACTUAL DISCOUNTED ANNUAL FEE"), then (i) if the Actual
Discounted Annual Fee is greater than the Estimated Discounted Annual Fee, the
Company shall pay to CIC an amount equal to such difference, and (ii) if the
Estimated Discounted Annual Fee is greater than the Actual Discounted Annual
Fee, CIC shall return to the Company an amount equal to such difference, in each
case, within 10 business days of such determination.

                  (b)      Upon the acquisition by the Company of any business
or entity, or similar transactions with respect to which CIC provides services,
the Company shall pay to CIC a transaction fee equal to 2% of the purchase or
sale price, as applicable. Upon the divestiture by the Company of any business
or entity, or similar transactions with respect to which CIC provides services,
the Company shall pay to CIC a transaction fee equal to 1% of the purchase or
sale price, as applicable.

                  (c)      Upon the completion of a merger, consolidation or
other business combination of the Company with and into a third party, or a sale
of all or substantially all of the stock of the Company or any of its direct or
indirect parent companies to a third party, or a sale of all or substantially
all of the assets of the Company and its subsidiaries on a consolidated basis,
the Company shall pay to CIC a transaction fee equal to 1% of the sale price.

                  (d)      CIC shall not be entitled to the Annual Fee with
respect to the first fiscal year of the Initial Term unless (i) the Company's
debt-to-EBITDA ratio for the last twelve months then ended is less than 5.20:1
or (ii) the Company's EBITDA for the last twelve months then ended is at least
$85.5 million; PROVIDED, HOWEVER, that if it is determined that as of December
31, 2005 (i) the Company's debt-to-EBITDA ratio for the last twelve months then
ended is less than 5.20:1 or (ii) the Company's EBITDA for the last twelve
months then ended is at least $85.5 million, any unpaid installment of the
Annual Fee with respect to the first fiscal year of the Initial Term shall be
paid within 10 business days of such determination.

                  (e)      The Annual Fee payable in any fiscal year shall not
exceed the amounts permitted under the Credit Agreement, dated as of the date
hereof, among the Company, the guarantors party thereto, the lenders party
thereto, UBS Securities LLC and Deutsche Bank Securities Inc., as joint lead
arrangers and bookrunners, CIBC World Markets Corp. and Merrill Lynch & Co.,
Merrill Lynch, Pierce, Fenner & Smith Incorporated, as co-arrangers, UBS AG,
Stamford Branch, as issuing bank, administrative agent and collateral agent, UBS
Loan Finance LLC, as swingline lender, Deutsche Bank AG Cayman Islands Branch,
as syndication agent, and Canadian Imperial Bank of Commerce and Merrill Lynch
Capital Corporation, as co-documentation agents

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                                                                               3

(as amended, the "CREDIT AGREEMENT") or under the Indenture, dated as of
February 12, 2004, governing the Company's [__]% Senior Subordinated Notes due
2012 (as amended, the "INDENTURE"). If at any time an Event of Default has
occurred and is continuing under either the Credit Agreement or the Indenture
and the Estimated Discounted Annual Fee has been paid for the fiscal year in
which such Event of Default has occurred, CIC shall promptly return to the
Company an amount equal to the product of (x) the amount of such Estimated
Discounted Annual Fee and (y) a fraction, the numerator of which is the number
of months remaining in such fiscal year (including the month in which such Event
of Default has occurred) and the denominator of which is 12. Notwithstanding
anything to the contrary set forth in this Section 2(e), on the first day in any
fiscal year upon which the full amount of the Annual Fee payable with respect to
such fiscal year shall be permitted to be paid, such full amount shall be paid,
and upon the first day upon which any partial amount of the Annual Fee that
would have been payable with respect to any prior fiscal year except for the
provisions of this Section 2(e), such partial amount shall be paid.

                  (f)      As used in this Section 2, the following terms shall
have the following meanings:

                           (i)      "COMMON PHANTOM ADDITIONAL UNIT" shall have
the meaning specified in the Phantom Stock Plan.

                           (ii)     "EBITDA" for a specified fiscal period means
consolidated net income (loss) of the Company (x) plus, to the extent deducted
in computing such consolidated net income (loss), (1) an amount equal to any
extraordinary loss and/or any net capital loss realized, (2) provision for taxes
based on income or profits, (3) consolidated interest expense whether paid or
accrued and whether or not capitalized (including amortization or write-off of
debt discount and debt issuance costs and commissions, discounts and other fees
and charges associated with indebtedness (including costs associated with
letters of credit)), (4) depreciation and amortization (including amortization
of goodwill, organization costs and any capitalized management fees, overhead
allocations, or transaction fees paid to Caxton-Iseman (Ply Gem), L.P. or its
Affiliates (the "SPONSOR") (but excluding payments of expense reimbursement or
indemnification payments to Sponsor), (5) dividends paid or accrued on preferred
stock, (6) any management fees, overhead allocations and transaction fees paid
to Sponsor or its Affiliates (but excluding payments of expense reimbursement or
indemnification payments to Sponsor), (7) charges related to Common Phantom
Additional Units, Preferred Phantom Additional Units and Phantom Incentive Units
credited to any account under the Phantom Stock Plan, (8) costs associated with
the shut down of the businesses conducted by Thermal-Gard, Inc., (9) severance
costs related to John Forbis, (10) items listed on Schedule 1.01(b) of the
Credit Agreement and (11) any other items deemed to be unusual or non-recurring
by the Company and (y) minus any tax benefit recorded and any extraordinary gain
and/or any net capital gain realized, in each case, on a consolidated basis and
determined in accordance with GAAP.

                           (iii)     "GAAP" means United States generally
accepted accounting principles.

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                                                                               4

                           (iv)     "PHANTOM INCENTIVE UNITS" shall have the
meaning specified in the Phantom Stock Plan.

                           (v)      "PHANTOM STOCK PLAN" means the Phantom Stock
Plan of the Company adopted as of the date hereof, as amended or modified from
time to time.

                           (vi)     "PREFERRED PHANTOM ADDITIONAL UNITS" shall
have the meaning specified in the Phantom Stock Plan.

         SECTION 3.        TERM. The initial term of this Agreement shall be ten
(10) years (the "INITIAL Term"), subject to Section 4. Upon the expiration of
the Initial Term, the term of this Agreement shall be automatically renewed for
consecutive one-year extensions unless the Company or CIC provides written
notice of termination no fewer than 30 days prior to the end of the current
term.

         SECTION 4.        TERMINATION. This Agreement shall terminate:

                  (a)      30 days after the delivery of a written notice by
CIC;

                  (b)      upon the completion of a merger, consolidation or
other business combination of the Company with and into a third party, or a sale
of all or substantially all of the stock of the Company or any of its direct or
indirect parent companies to a third party, or a sale of all or substantially
all of the assets of the Company and its subsidiaries on a consolidated basis;
or

                  (c)      upon the closing of the initial underwritten public
offering of equity securities of the Company or any of its direct or indirect
parent companies pursuant to an effective registration statement fled under the
Securities Act of 1933, as amended.

         SECTION 5.        FEES UPON TERMINATION. If this Agreement is
terminated for any reason prior to the expiration of the Initial Term, the
Company shall pay to CIC, concurrently with such termination, an amount equal to
the present value of the advisory fee that would otherwise have been payable to
CIC in accordance with Section 2(b) through the end of the Initial Term, based
on the Company's cost of funds to borrow amounts under the revolving credit
facility under the Credit Agreement.

         SECTION 6.        REIMBURSEMENT. Upon the request of CIC and/or its
Affiliates, and in any event, prior to the termination of this Agreement, the
Company shall promptly reimburse CIC and/or its Affiliates for all reasonable
out-of-pocket expenses (including, without limitation, legal, accounting,
consulting and travel fees and expenses) incurred in connection with the
performance of this Agreement (other than salary expenses and associated
overhead charges).

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         SECTION 7.        INDEMNITY AND EXCULPATION.

                  (a)      None of CIC, any of its Affiliates or any of their
respective partners, members, officers, directors, stockholders, Affiliates,
agents or employees (each, an "INDEMNIFIED PARTY") shall have any liability to
the Company for any services provided pursuant to this Agreement, except as may
result from such Indemnified Party's gross negligence or willful misconduct.

                  (b)      The Company hereby agrees to indemnify each
Indemnified Party from and against all losses, liabilities, damages,
deficiencies, demands, claims, actions, judgments or causes of action,
assessments, costs or expenses (including, without limitation, interest,
penalties and reasonable fees, expenses and disbursements of attorneys, experts,
personnel and consultants reasonably incurred by such Indemnified Party in any
action or proceeding between the Company and such Indemnified Party or between
such Indemnified Party and any third party, or otherwise) based upon, arising
out of, or otherwise in respect of, this Agreement or any Indemnified Party's
equity interest (whether direct or indirect) in the Company. To the extent that
the foregoing indemnification is not permitted by law, each of the Indemnified
Parties and the Company shall be subject and entitled to contribution based upon
the relative benefits (not to exceed in any event the amount of fees paid to CIC
hereunder) received by each and, if legally required, based upon the relative
fault of each of the Indemnified Parties and the Company.

         SECTION 8.        ASSIGNMENT. This Agreement may not be assigned by
either party hereto without the prior written consent of the other party;
PROVIDED, that the Company shall be entitled to assign this Agreement to any
Person that is an Affiliate of the Company or that otherwise assumed or is a
successor to substantially all of the assets and the liabilities of the Company.

         SECTION 9.        MODIFICATION. This Agreement may not be modified or
amended in any manner other than by an instrument in writing signed by both
parties hereto, or their respective successors or assigns.

         SECTION 10.       ENTIRE AGREEMENT. This Agreement constitutes the
entire agreement between the parties with respect to the subject matter hereof
and supersedes any prior agreement or understanding among them with respect to
such subject matter.

         SECTION 11.       NOTICES. Any notice or other communication required
or permitted hereunder shall be in writing and shall be delivered personally,
sent by facsimile transmission or sent by certified, registered or express mail,
postage prepaid and return receipt requested. Any such notice shall be deemed
given when so delivered personally or sent by facsimile transmission or, if
mailed, five days after the date of deposit in the United States mails, as
follows:

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                  (a)      if to CIC, to:

                           CxCIC LLC
                           c/o Caxton-Iseman Capital, Inc.
                           500 Park Avenue, 8th Floor
                           New York, NY 10022
                           Attention:  Frederick Iseman
                           Telephone:  (212) 752-1850
                           Facsimile:  (212) 832-9450

                           with a copy to:

                           Paul, Weiss, Rifkind, Wharton & Garrison LLP
                           1285 Avenue of the Americas
                           New York, New York 10019
                           Attention:  Carl L.  Reisner, Esq.
                           Telephone:  (212) 373-3017
                           Facsimile:  (212) 373-2085

                  (b)      if to the Company, to:

                           Ply Gem Industries, Inc.
                           303 West Major Street
                           Kearney, MO 64060
                           Attention:  Shawn K. Poe
                           Telephone: (800) 800-2244
                           Facsimile:  (816) 903-4330

         Any party may, by notice given in accordance with this Section to the
other parties, designate another address or person for receipt of notices
hereunder.

         SECTION 12.       GOVERNING LAW; SUBMISSION TO JURISDICTION. All
questions concerning the construction, validity and interpretation of this
Agreement will be governed by and construed in accordance with the internal law
(and not the law of conflicts) of the State of New York.

         SECTION 13.       COUNTERPARTS. This Agreement may be executed in
counterparts, each of which when so executed shall be deemed to be an original
all of which taken together shall constitute one and the same instrument.

                            [Signature page follows]

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         IN WITNESS WHEREOF, the parties hereto have executed this Agreement on
the date first written above.

                                    PLY GEM INDUSTRIES, INC.

                                    By: /s/ Lee D. Meyer
                                        ---------------------------------------
                                        Name:  Lee D. Meyer
                                        Title:

                                    CXCIC LLC

                                    By: /s/ Frederick Iseman
                                        ---------------------------------------
                                        Name:  Frederick Iseman
                                        Title:<PAGE>

                                                                   EXHIBIT 10.15
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                                                                  EXECUTION COPY

                              TAX SHARING AGREEMENT

         THIS TAX SHARING AGREEMENT (the "Agreement"), dated as of February 12,
2004 is entered into between Ply Gem Investment Holdings, Inc., a Delaware
corporation ("Parent"), Ply Gem Holdings, Inc., a Delaware corporation
("Holdco"), and Ply Gem Industries, Inc., a Delaware corporation ("Opco", and
together with Holdco, the "Subsidiaries").

         Parent is the common parent corporation of an affiliated group of
corporations within the meaning of Section 1504(a) of the Internal Revenue Code
of 1986, as amended (the "Code"), that has elected to file consolidated federal
income tax returns, and the Subsidiaries are members of such group.

         Parent and the Subsidiaries desire to set forth in this Agreement their
agreement as to certain matters relating to the inclusion of the Subsidiary
Consolidated Group (as defined below) in the Parent Consolidated Group (as
defined below), including the allocation of tax liabilities for years in which
the Subsidiaries are so included, and certain other matters relating to taxes.

         The parties agree as follows:

         1.       DEFINITIONS.

         "Adjustment" shall have the meaning set forth in Section 8.

         "Agreement Year" shall mean any taxable year beginning on or after
February 12, 2004 during which the Subsidiary Consolidated Group is included in
the Parent Consolidated Group.

         "Balance Payment" shall have the meaning set forth in Section 4.

         "Code" shall have the meaning set forth above.

         "Estimated Income Tax Payments" shall have the meaning set forth in
Section 4.

         "Final Determination" shall mean the final resolution of any tax
matter, including, but not limited to, a closing agreement with the IRS or the
relevant state, local or foreign taxing authority, a claim for refund which has
been allowed, a deficiency notice with respect to which the period for filing a
petition with the Tax Court or the relevant state, local or foreign tribunal has
expired, or a decision of competent jurisdiction that is not subject to appeal
or as to which the time for appeal has expired. "IRS" shall mean the Internal
Revenue Service.

         "Parent" shall have the meaning set forth above.

<PAGE>

         "Parent Consolidated Group" shall mean the affiliated group of
corporations (including any predecessors and successors thereto) within the
meaning of Section 1504(a) of the Code electing to file consolidated federal
income tax returns and of which Parent is the common parent.

         "Parent Consolidated Return" shall have the meaning set forth in
Section 2.

         "Post-Consolidation Year" shall have the meaning set forth in Section 6
of this Agreement.

         "Pro Forma Subsidiary Attribute" shall have the meaning set forth in
Section 5.

         "Pro Forma Subsidiary Return" shall have the meaning set forth in
Section 3.

         "Records" shall have the meaning set forth in Section 8.

         "Regulations" shall mean the Treasury regulations promulgated under the
Code.

         "Total Periodic Payments" shall have the meaning set forth in Section
4.

         "Subsidiaries" shall have the meaning set forth above.

         "Subsidiary Consolidated Group" shall mean the affiliated group of
corporations (including any predecessors and successors thereto) within the
meaning of Section 1504(a) of the Code, of which Holdco would be the common
parent if it were not included in the Parent Consolidated Group.

         "Subsidiary Return Items" shall have the meaning set forth in Section
8.

         "Subsidiary Tax Package" shall have the meaning set forth in Section 7.

         2.       FILING OF CONSOLIDATED RETURNS AND PAYMENT OF CONSOLIDATED TAX
LIABILITY.

         For all taxable years in which Parent files consolidated federal income
tax returns (any such return of the Parent Consolidated Group for any taxable
year, a "Parent Consolidated Return") and is entitled to include the Subsidiary
Consolidated Group in such returns, Parent shall include the Subsidiary
Consolidated Group in the consolidated federal income tax returns that it files
as the common parent corporation of the Parent Consolidated Group. Parent, the
Subsidiaries and the other members of the Parent Consolidated Group shall file
any and all consents, elections or other documents and take any other actions
necessary or appropriate to effect the filing of such federal income tax
returns. For all taxable years in which the Subsidiary Consolidated Group is
included in the Parent Consolidated Group, Parent shall pay the entire federal
income tax liability of

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the Parent Consolidated Group and shall indemnify and hold harmless the
Subsidiaries and each member of the Subsidiary Consolidated Group against any
such liability; provided, however, that the Subsidiaries shall make payments to
Parent or receive payments from Parent as provided in this Agreement for any
Agreement Year.

         3.       PRO FORMA SUBSIDIARY RETURN.

         For each Agreement Year, Parent shall prepare a pro forma federal
income tax return for the Subsidiary Consolidated Group (a "Pro Forma Subsidiary
Return"). Except as otherwise provided in this Agreement, the Pro Forma
Subsidiary Return for each Agreement Year shall be prepared as if Holdco filed a
consolidated federal income tax return on behalf of the Subsidiary Consolidated
Group for such taxable period. The Pro Forma Subsidiary Return shall reflect any
carryovers of net operating losses, net capital losses, excess tax credits, or
other tax attributes from prior Pro Forma Subsidiary Returns (excluding those
attributes that are carried back pursuant to Section 5) that could have been
utilized by the Subsidiary Consolidated Group if the Subsidiary Consolidated
Group had never been included in the Parent Consolidated Group and all Pro Forma
Subsidiary Returns had been filed as actual returns. The Pro Forma Subsidiary
Return shall be prepared in a manner that reflects all elections, positions and
methods used in the Parent Consolidated Return that must be applied on a
consolidated basis and otherwise shall be prepared in a manner consistent with
the Parent Consolidated Return. The provisions of the Code that require
consolidated computations, such as Sections 861, 1201-1212 and 1231, shall be
applied separately to the Subsidiary Consolidated Group as if the Subsidiary
Consolidated Group and the Parent Consolidated Group (excluding the members of
the Subsidiary Consolidated Group) were separate affiliated groups, except that
the Pro Forma Subsidiary Return prepared for the last taxable year, or portion
thereof, during which the Subsidiary Consolidated Group is included in the
Parent Consolidated Return shall also include any gains or losses of the members
of the Subsidiary Consolidated Group on transactions within the Subsidiary
Consolidated Group that must be taken into account pursuant to Section 1.1502-13
of the Regulations and reflected on the Parent Consolidated Return when the
Subsidiary Consolidated Group ceases to be included in the Parent Consolidated
Return. For each Agreement Year, Section 1.1502-13 of the Regulations shall be
applied as if the Subsidiary Consolidated Group were not a member of the Parent
Consolidated Group. For purposes of the Agreement, all determinations made as if
the Subsidiary Consolidated Group had never been included in the Parent
Consolidated Group and as if all Pro Forma Subsidiary Returns were actual
returns shall reflect any actual short taxable years resulting from the
Subsidiary Consolidated Group joining or leaving the Parent Consolidated Group.

         4.       TAX PAYMENTS.

         (a)      ESTIMATED INCOME TAX PAYMENTS. For each Agreement Year, the
Subsidiaries shall make periodic payments ("Estimated Income Tax Payments") to
Parent in such amounts, that, combined, shall be equal to the estimated tax
payments that would be payable by the Subsidiary Consolidated Group if it were
not included in the Parent Consolidated Group, no later than the dates on which
such estimated tax payments would be

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due from the Subsidiary Consolidated Group if it were not included in the Parent
Consolidated Group.

         (b)      BALANCE PAYMENT. For each Agreement Year, the Subsidiaries
shall pay to Parent an amount equal to the tax payment that would be payable by
the Subsidiary Consolidated Group if it were not included in the Parent
Consolidated Group, no later than March 15 of the following year (the "Balance
Payment").

         (c)      PAYMENTS BASED ON PRO FORMA SUBSIDIARY RETURN. For each
Agreement Year, the Subsidiaries shall pay to Parent, no later than the date on
which a Parent Consolidated Return is filed for such Agreement Year, an amount
equal to the sum of (i) the federal income tax liability shown on the
corresponding Pro Forma Subsidiary Return prepared for such Agreement Year and
(ii) the additions to tax, if any, under Section 6655 of the Code that would
have been imposed on the Subsidiary Consolidated Group (treating the amount due
to Parent under (i) above as its federal income tax liability and treating any
Estimated Income Tax Payments to Parent pursuant to clause (a) as estimated
payments under Section 6655 of the Code) and which result from the inaccuracy of
any information provided by the Subsidiaries to Parent pursuant to Section 7
hereof or from the failure of the Subsidiaries to provide any requested
information, reduced by (iii) the sum for such Agreement Year of the amount of
the Estimated Income Tax Payments and the Balance Payment (collectively, the
"Total Periodic Payments"), plus (iv) any interest and additions to tax (other
than under Section 6655 of the Code) that would be due under the Code if the
Total Periodic Payments were actual payments of tax. If the Total Periodic
Payments to Parent for any Agreement Year exceed the amount of the liability of
the Subsidiaries for such Agreement Year under the preceding sentence, Parent
shall pay to Holdco an amount equal to such excess within 10 days after filing
the Parent Consolidated Return for such Agreement Year. For purposes of this
Agreement, the term "federal income tax liability" includes the tax imposed by
Sections 11, 55 and 59A of the Code, or any successor provisions to such
Sections. Parent shall notify the Subsidiaries of any amounts due from the
Subsidiaries to Parent pursuant to this Section 4 at least 5 business days prior
to the date such payments are due, and such payments shall not be considered due
until the later of the due date described above or the fifth day after Parent
gives such notice.

         5.       LOSSES; REFUNDS.

         If a Pro Forma Subsidiary Return for any Agreement Year reflects a net
operating loss, net capital loss, excess tax credit or other tax attribute (a
"Pro Forma Subsidiary Attribute"), which attribute is actually utilized in a
Parent Consolidated Return (including any amendments thereto), then, within 30
days after the date such Pro Forma Subsidiary Attribute is actually realized in
cash (whether directly or by offset), Parent shall pay to Holdco an amount equal
to the refund that the Subsidiary Consolidated Group would have received as a
result of the carryback of such Pro Forma Subsidiary Attribute to a Pro Forma
Subsidiary Return for any prior Agreement Year or Years, assuming that all Pro
Forma Subsidiary Returns had been filed as actual returns and that the
Subsidiary Consolidated Group had filed returns as a separate affiliated

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<PAGE>

group for all prior taxable years. All calculations of deemed refunds pursuant
to this Section 5 shall include interest computed as if the Subsidiary
Consolidated Group had filed a claim for refund or an application for a
tentative carryback adjustment pursuant to Section 6411(a) of the Code on the
date on which the relevant Parent Consolidated Return is filed.

         6.       PAYMENTS FOR TAXABLE YEARS IN THE EVENT OF DECONSOLIDATION.

         (a)      PAYMENTS BY THE SUBSIDIARIES TO PARENT. If for any taxable
year after the Subsidiary Consolidated Group ceases to be included in the Parent
Consolidated Group (a "Post-Consolidation Year"), (i) the federal income tax
liability of the Subsidiary Consolidated Group is less than the federal income
tax liability that would have been imposed with respect to the same period if
the Subsidiary Consolidated Group had not been included in the Parent
Consolidated Group for any Agreement Year and all Pro Forma Subsidiary Returns
had been actual returns for such years, or (ii) the federal income tax liability
of the Parent Consolidated Group is greater than the federal income tax
liability that would have been imposed with respect to the same period if the
Subsidiary Consolidated Group had not been included in the Parent Consolidated
Group for any Agreement Year and all Pro Forma Subsidiary Returns had been
actual returns for such years, then, to the extent that the Subsidiaries have
not already made a payment to Parent for utilization of the tax attributes that
gave rise to the decrease or increase described in (i) or (ii), the Subsidiaries
shall pay to Parent an amount equal to such decrease or increase within 10 days
of the filing of Subsidiary Post-Consolidation Year return. In the event that
there is both a decrease and an increase described in (i) and (ii),
respectively, of the previous sentence for any Post-Consolidation Year, then the
Subsidiaries shall make a payment to Parent in an amount equal to the sum of
such decrease and increase, unless such decrease and increase (or any portion
thereof) result from utilization of the same tax attribute(s), in which case the
amount of the payment will be reduced accordingly.

         (b)      PAYMENTS BY PARENT TO THE SUBSIDIARIES. If for any
Post-Consolidation Year (i) the federal income tax liability of the Subsidiary
Consolidated Group is greater than the federal income tax liability that would
have been imposed with respect to the same period if the Subsidiary Consolidated
Group had not been included in the Parent Consolidated Group for any Agreement
Year and all Pro Forma Subsidiary Returns had been actual returns for such
years, or (ii) the federal income tax liability of the Parent Consolidated Group
is less than the federal income tax liability that would have been imposed with
respect to the same period if the Subsidiary Consolidated Group had not been
included in the Parent Consolidated Group for any Agreement Year and all Pro
Forma Subsidiary Returns had been actual returns for such years, then, to the
extent that Parent has not already made a payment to the Subsidiaries for
utilization of the tax attributes that gave rise to the increase or decrease
described in (i) or (ii), Parent shall pay to Holdco an amount equal to such
increase or decrease within 10 days of notification by Holdco to Parent of the
filing of Subsidiary Post-Consolidation Year return. In the event that there is
both an increase and a decrease described in (i) and (ii), respectively, of the

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<PAGE>

previous sentence for any Post-Consolidation Year, then Parent shall make a
payment to Holdco in an amount equal to the sum of such increase and decrease,
unless such increase and decrease (or any portion thereof) result from
utilization of the same tax attribute(s), in which case the amount of the
payment will be reduced accordingly.

         (c)      DOCUMENTATION. Prior to the payment of any amounts due
pursuant to this Section 6, the parties shall exchange such information and
documentation as is reasonably satisfactory to each of them in order to
substantiate the amounts due pursuant to this Section 6. Any disputes as to such
amounts and documentation that cannot be resolved prior to the date on which a
payment is due shall be referred to an independent accounting firm whose fees
shall paid one-half by Holdco and one-half by Parent.

         (d)      POST-CONSOLIDATION YEAR CARRYBACKS.

         (i)      If a Subsidiary Consolidated Group federal income tax return
for any Post-Consolidation Year reflects a net operating loss, net capital loss,
excess tax credits, or any other tax attribute, whether or not the Subsidiaries
waive the right to carryback any such attribute to a Parent Consolidated Return,
no payment with respect to such carrybacks shall be due from Parent.

         (ii)     If a Parent Consolidated Return for any Post-Consolidation
Year reflects a net operating loss, net capital loss, excess tax credits, or any
other tax attribute, such attribute may be carried back to Parent Consolidated
Return for an Agreement Year, and Parent shall be entitled to retain (without
any obligation to reimburse the Subsidiaries) the full amount of any refund
received in connection therewith. In the event that either of the Subsidiaries
(or any other member of the Subsidiary Consolidated Group) receive any refund
with respect to an Agreement Year issued in connection with a carryback of a
Parent Consolidated Group tax attribute from a Post-Consolidation Year to a
Parent Consolidated Return for an Agreement Year, such Subsidiary (or member of
the Subsidiary Consolidated Group) shall promptly pay the full amount of such
refund to Parent.

         (e)      NO DUPLICATION OF PAYMENT. Notwithstanding anything to the
contrary herein, neither Section 5(a) nor Section 5(b) shall require the
Subsidiaries or Parent, as the case may be, to make any payment pursuant to such
section to the extent that the payment is attributable to a tax attribute for
which payment has previously been made pursuant to Section 4.

         7.       PREPARATION OF TAX PACKAGE AND OTHER FINANCIAL REPORTING
INFORMATION.

         The Subsidiaries shall provide to Parent, in a format determined by
Parent, all information requested by Parent as reasonably necessary to prepare
the Parent Consolidated Return and the Pro Forma Subsidiary Return (the
"Subsidiary Tax Package"). The Subsidiary Tax Package with respect to any
taxable year shall be provided to Parent on a basis consistent with practices of
the Parent Consolidated Group.

                                                                               6
<PAGE>

The Subsidiaries shall also provide to Parent information required to determine
the Total Periodic Payments, current federal taxable income, current and
deferred tax liabilities, tax reserve items and any additional current or prior
information required by Parent on a timely basis consistent with practices of
the Parent Consolidated Group.

         8.       RETURNS, AUDITS, REFUNDS, AMENDED RETURNS, LITIGATION,
ADJUSTMENTS AND RULINGS.

         (a)      RETURNS. Parent shall have exclusive and sole responsibility
for the preparation and filing of the Parent Consolidated Returns (including
requests for extensions) and any other returns, amended returns and other
documents or statements required to be filed with the IRS in connection with the
determination of the federal income tax liability of the Parent Consolidated
Group.

         (b)      AUDITS; REFUND CLAIMS. Parent will have exclusive and sole
responsibility and control with respect to the conduct of IRS examinations of
the returns filed by the Parent Consolidated Group and any refund claims with
respect to such returns, including without limitation the right to select
counsel, the right to determine the court or other body in which any contest
shall be brought, the right to determine whether to contest a proposed
deficiency or to pay a tax and sue for a refund and the right to determine
whether and how to appeal any adverse determination . The Subsidiaries shall
assist and cooperate with Parent during the course of any such proceeding.
Parent shall give Holdco notice of and consult with Holdco with respect to any
issues relating to items of income, gain, loss, deduction or credit of the
Subsidiaries (or any other member of the Subsidiary Consolidated Group) (any
such items, "Subsidiary Return Items"). Parent shall not settle or otherwise
compromise any Subsidiary Return Item that would result in additional liability
for the Subsidiaries under this Agreement without the written consent of Holdco,
which consent shall not be unreasonably withheld. If Holdco does not respond to
Parent's request for consent within 30 days, Holdco shall be deemed to have
consented.

         (c)      LITIGATION. If the federal income tax liability of the Parent
Consolidated Group becomes the subject of litigation in any court, the conduct
of the litigation shall be controlled exclusively by Parent. The Subsidiaries
shall assist and cooperate with Parent during the course of litigation, and
Parent shall consult with Holdco regarding any issues relating to Subsidiary
Return Items.

         (d)      EXPENSES. The Subsidiaries shall reimburse Parent for all
reasonable out-of-pocket expenses (including, without limitation, legal,
consulting and accounting fees) in the course of proceedings described in
paragraphs (b) and (c) of this Section 8, to the extent such expenses are
reasonably attributable to Subsidiary Return Items for any Agreement Year.

         (e)      RECALCULATION OF PAYMENTS TO REFLECT ADJUSTMENTS. To the
extent that there is a Final Determination with respect to a Parent Consolidated
Return that results in a change in an item relating to such return (an
"Adjustment") that affects the treatment of a Subsidiary Return Item for an
Agreement Year, a corresponding

                                                                               7
<PAGE>

adjustment shall be made to the corresponding Pro Forma Subsidiary Return. All
calculations of payments made pursuant to Sections 4, 5 and 6 of this Agreement
shall be recomputed to reflect the effect of any Adjustments on the relevant Pro
Forma Subsidiary Return. Within 5 days after any such Adjustment, the
Subsidiaries or Parent, as appropriate, shall make a payment to the other party
reflecting such Adjustment, plus interest pursuant to Section 9 of the
Agreement, calculated as if payments by and to the Subsidiaries pursuant to
Sections 4, 5 and 6 of this Agreement and this Section 8 were payments and
refunds of federal income taxes. The Subsidiaries shall further pay to Parent
the amount of any penalties or additions to tax incurred by the Parent
Consolidated Group as a result of an adjustment to any Subsidiary Return Item
for an Agreement Year.

         (f)      RULINGS. The Subsidiaries shall assist and cooperate with
Parent and take all actions requested by Parent in connection with any ruling
requests submitted by Parent to the IRS.

         (g)      APPLICABILITY WITH RESPECT TO ALL CONSOLIDATED RETURNS. The
provisions of Sections 8(a), (b) and (c) above shall apply to Parent
Consolidated Returns and Subsidiary Return Items for all taxable years in which
the Subsidiaries are includable in the Parent Consolidated Group.

         (h)      DOCUMENT RETENTION, ACCESS TO RECORDS AND USE OF PERSONNEL.
Until the expiration of the relevant statute of limitations (including
extensions), the Subsidiaries shall (i) retain records, documents, accounting
data, computer data and other information (collectively, the "Records")
necessary for the preparation, filing, review, audit or defense of all tax
returns relevant to an obligation, right or liability of either party under the
Agreement; and (ii) give Parent reasonable access to such Records and to its
personnel (insuring their cooperation) and premises to the extent relevant to an
obligation, right or liability of either party under the Agreement. Prior to
disposing of any such Records, the Subsidiaries shall notify Parent in writing
of such intention and afford Parent the opportunity to take possession or make
copies of such Records at its discretion.

         9.       INTEREST.

         Interest required to be paid by or to the Subsidiaries pursuant to the
Agreement shall, unless otherwise specified, be computed at the rate and in the
manner provided in the Code for interest on underpayments and overpayments,
respectively, of federal income tax for the relevant period. Any payments
required pursuant to the Agreement which are not made within the time period
specified in the Agreement shall bear interest at a rate equal to the rate
provided in the Code for interest on underpayments of tax.

         10.      FOREIGN, STATE AND LOCAL INCOME TAXES.

         (a)      In the case of foreign, state or local taxes based on or
measured by the net income of the Parent Consolidated Group, or any members of
the Parent Consolidated Group (other than solely with respect to the Subsidiary
Consolidated Group

                                                                               8
<PAGE>

or solely with respect to members of the Parent Consolidated Group other than
members of the Subsidiary Consolidated Group) on a combined, consolidated or
unitary basis, the provisions of this Agreement shall apply with equal force to
such foreign, state or local tax for each Agreement Year, whether or not the
Subsidiary Consolidated Group is included in the Parent Consolidated Group for
federal income tax purposes; provided, however, that interest pursuant to the
first sentence of Section 9 of this Agreement shall be computed at the rate and
in the manner provided under such foreign, state or local law for interest on
underpayments and overpayments of such tax for the relevant period, and
references to provisions of the Code throughout the Agreement shall be deemed to
be references to analogous provisions of foreign, state and local law.

         (b)      For any taxable year, Parent shall have the sole and exclusive
control of (a) the determination of whether a combined, consolidated or unitary
tax return should be filed for any foreign, state or local tax purpose and (b)
all foreign, state or local income tax audits and litigation with respect to the
Subsidiary Consolidated Group to the same extent as provided in this Agreement
for federal income tax matters (including the right in its sole discretion to
have the Subsidiaries pay any disputed taxes and sue for a refund in the forum
of Parent's choice). The Subsidiaries shall reimburse Parent for all reasonable
out-of-pocket expenses (including, without limitation, legal, consulting and
accounting fees) in the course of proceedings described in the preceding
sentence, to the extent such expenses are reasonably attributable to the
Subsidiary Consolidated Group.

         (c)      Holdco shall be responsible for filing tax returns relating to
payroll, sales and use, property, withholding, capital stock, net worth and
similar taxes attributable to members of the Subsidiary Consolidated Group and
shall be responsible for the payment of such taxes.

         (d)      For all taxable years that the Subsidiaries are members of the
Parent Consolidated Group, the Subsidiaries shall have the sole and exclusive
responsibility for all taxes based on or measured by net income that are
determined solely by the income of the Subsidiary Consolidated Group (or any
combination of the members thereof, including the predecessors and successors of
such members) on a combined, consolidated, unitary or separate company basis.

         (e)      Parent will provide notice of and consult with the
Subsidiaries with respect to any issue relating to such audits and litigation,
and the Subsidiaries will provide to Parent any information necessary to conduct
such audits and litigation. Parent shall not settle or otherwise compromise any
audits or litigation that would result in additional liability for the
Subsidiaries under this Section 10 without the written consent of Holdco, which
consent shall not be unreasonably withheld. If Holdco does not respond to
Parent's request for consent within 30 days, Holdco shall be deemed to have
consented.

         11.      SUCCESSORS AND ACCESS TO INFORMATION.

         The Agreement shall be binding upon and inure to the benefit of any
successor to any of the parties, by merger, acquisition of assets or otherwise,
to the same

                                                                               9
<PAGE>

extent as if the successor had been an original party to the Agreement, and in
such event, all references in this Agreement to a party shall refer instead to
the successor of such party. If for any taxable year the Subsidiaries are no
longer included in the Parent Consolidated Group, Parent and the Subsidiaries
agree to provide to the other party any information reasonably required to
complete tax returns for taxable periods beginning after the Subsidiaries are no
longer included in a Parent Consolidated Return, and each of Parent and the
Subsidiaries will cooperate with respect to any audits or litigation relating to
any Parent Consolidated Return.

         12.      CONFIDENTIALITY.

         Each of Parent and the Subsidiaries agrees that any information
furnished pursuant to the Agreement is confidential and, except as and to the
extent required by law or otherwise during the course of an audit or litigation
or other administrative or legal proceeding, shall not be disclosed to other
persons. In addition, each of Parent and the Subsidiaries shall cause its
employees, agents and advisors to comply with the terms of this Section 12.

         13.      GOVERNING LAW.

         The Agreement shall be governed by and construed in accordance with the
laws of the State of Delaware applicable to contracts entered into and to be
fully performed within the State of Delaware.

         14.      HEADINGS.

         The headings in the Agreement are for convenience only and shall not be
deemed for any purpose to constitute a part or to affect the interpretation of
the Agreement.

         15.      SECTION REFERENCES.

         References to Sections shall, unless otherwise specified, be references
to Sections of this Agreement.

         16.      COUNTERPARTS.

         The Agreement may be executed simultaneously in two or more
counterparts, each of which will be deemed an original, and it shall not be
necessary in making proof of the Agreement to produce or account for more than
one counterpart.

         17.      SEVERABILITY.

         If any provision of the Agreement is held to be unenforceable for any
reason, it shall be adjusted rather than voided, if possible, in order to
achieve the intent of the parties to the maximum extent practicable. In any
event, all other provisions of the Agreement shall be deemed valid, binding, and
enforceable to their full extent.

                                                                              10
<PAGE>

         18.      TERMINATION.

         The Agreement shall remain in force and be binding so long as the
applicable period of assessments (including extensions) remains unexpired for
any taxes contemplated by the Agreement; provided, however, that neither Parent
nor the Subsidiaries shall have any liability to the other party with respect to
tax liabilities for any taxable year in which the Subsidiary Consolidated Group
is not included in the Parent Consolidated Return for such year, except as
provided in Sections 5 and 10.

         19.      SUCCESSOR PROVISIONS.

         Any reference herein to any provisions of the Code or Treasury
Regulations shall be deemed to include any amendments or successor provisions
thereto, as appropriate.

         20.      COMPLIANCE BY SUBSIDIARIES.

         Parent and Holdco each agrees to cause all members of the Parent
Consolidated Group and the Subsidiary Consolidated Group (including predecessors
and successors to such members) to comply with the terms of this Agreement.

         IN WITNESS WHEREOF, each of the parties to this Agreement has caused
this Agreement to be executed by its duly authorized officer on this February
12, 2004.

                               [Signatures follow]

                                                                              11
<PAGE>

                                    PLY GEM INVESTMENT HOLDINGS, INC.

                                    By: /s/ Lee D. Meyer
                                        ---------------------------------------
                                        Name:  Lee D. Meyer
                                        Title:

                                    PLY GEM HOLDINGS, INC.

                                    By: /s/ Lee D. Meyer
                                        ---------------------------------------
                                        Name:  Lee D. Meyer
                                        Title:

                                   PLY GEM INDUSTRIES, INC.

                                    By: /s/ Lee D. Meyer
                                        ---------------------------------------
                                        Name:  Lee D. Meyer
                                        Title:

                                                                              12

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