**SECTION C**

**DESCRIPTION/SPECIFICATIONS**

**[PART 1 - PROJECT HISTORY AND EXISTING CONDITIONS]{.underline}**

1.1 **[BACKGROUND]{.underline}**

> The Gambrill House, is a three story ca. 1872 Second Empire mansion
> located on the grounds of Monocacy National Battlefield approximately
> 3½ miles south of Frederick, Maryland. Since 1996, the Gambrill House
> has been serving as the administrative headquarters for the Historic
> Preservation Training Center (HPTC). Over the last decade, HPTC has
> been systematically rehabilitating and restoring the building through
> a series of phased preservation projects.
>
> This purpose of this project is to install high performance aluminum
> storm windows on the exterior side of select prime wood windows,
> transoms, and sidelights in an effort to improve energy efficiency
> while also providing each opening with a high level of protection
> against the elements. For project planning, estimating, and
> implementation purposes, the windows, transoms, and sidelights
> included in this project shall be grouped as follows:

Group #1 -- 1^ST^ Floor Windows and 1^ST^ & 2^ND^ Floor Transoms

Group #2 -- 2^ND^ Floor Windows and Sidelight/Transom Group

Group #3 -- 3^RD^ Floor Windows

Group #4 -- 4^TH^ Floor Tower Windows

**[PART 2 -- PROJECT NARRATIVE]{.underline}**

2.1 **[STATEMENT OF WORK]{.underline}**

A.  Independently, and not as an agent of the Government, the Contractor
    shall provide all labor, materials and installation work necessary
    to measure, provide, and install the following variety and quantity
    of high performance aluminum storm windows manufactured by
    Sugarcreek Industries or their equivalent:

    Group #2

    2^ND^ Floor Windows

-   Quantity 17 -- Triple-Track storm windows with half screens and
    horizontal stabilizer bar

    2^ND^ Floor Sidelight/Transom Group

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-   Quantity 1 -- Transom/sidelight storm window set consisting of 3
    rectangular fixed single-sash transom storm windows and 2
    rectangular fixed single-sash sidelight storm windows

    Group #3

    3^RD^ Floor Windows

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-   Quantity 13 -- Arched-Top storm windows with fixed top sash,
    interchangeable glass and screen panel lower sash, and horizontal
    stabilizer bar

    Group #4

    4^TH^ Floor Tower Windows

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-   Quantity 4 -- Arched-Top storm windows with fixed top sash,
    interchangeable glass & screen panel lower sash, and horizontal
    stabilizer bar

> B. The Contractor shall provide all labor and materials necessary to
> measure and provide the following variety and quantity of high
> performance aluminum storm windows manufactured by Sugarcreek
> Industries or their equivalent to be delivered to and retained by the
> Government at Gambrill House for installation at a future date by
> others:
>
> Group #4

1^st^ Floor Windows and 1^st^ and 2^nd^ Floor Transoms

-   Qty 23 -- Triple-Track storm windows with half screens and
    horizontal stabilizer bar

-   Qty 8 -- Fixed single-sash transom storm windows.

-   

> C. Each storm window provided shall be custom sized to fit and operate
> within each unique individual window opening. The attached Gambrill
> House Exterior Storm Window Survey and Gambrill House Exterior Transom
> Survey lists each window with related approximate rough opening sizes.
> The Contractor shall be responsible for taking accurate field
> measurements and verifying opening sizes.

2.2 **[GENERAL REQUIREMENTS]{.underline}**

> A. [Qualifications:]{.underline} The Contractor shall submit the names
> and qualifications of each potential Installation Mechanic giving
> evidence of their experience and any manufacturers training received
> related to the installation of storm window units of the type and
> quality specified. If the Contractor employs a Subcontractor to
> install the window, the name of the Subcontractor shall be submitted
> along with the qualifications as noted above of each potential
> Installation Mechanic working for the Subcontractor. The name(s) of
> the Installation Mechanics provided shall be identified as Key
> Personnel in the contract.
>
> B. [Test Reports:]{.underline} The Contractor shall submit with their
> quote the Window Manufacturer\'s test reports on the window being
> submitted clearly indicating that the windows have been tested in
> accordance with the following "American Society for Testing and
> Materials" standards:
>
> ASTM: E283-91 Air Leakage Test
>
> ASTM: E331-90 Water Resistance
>
> ASTM: E90-90 Uniform Load Test
>
> C. [Product Warranty:]{.underline} The Contractor shall submit a copy
> of the Window Manufacturer's Warranty against defects in materials and
> workmanship. Warranty shall be for a minimum of a 10-year period. The
> Warranty shall clearly state the period of time during which the
> Warranty is in effect and the Window Manufacturer's limitations, if
> any, regarding materials and labor required to repair and/or replace
> defective materials and workmanship.
>
> Warranties on other material components not manufactured by the Window
> Manufacturer but required to be furnished as part of each window
> installation shall bear only the warranty, if any, as offered by the
> respective manufacturer or supplier. These items may include, but are
> not necessarily limited to caulking and hardware.
>
> D. [Installation Warranty:]{.underline} The Contractor shall be
> responsible for the complete installation of each new storm window in
> a manner that will preserve the Window Manufacturer\'s Warranty. The
> warranty period shall be for a minimum of one year against defects in
> workmanship and materials relating to the installation and operation
> of each storm window installed, clearly stating the period of time
> during which the Warranty is in effect, and any limitations regarding
> the materials and labor required to repair and/or replace defective
> materials and/or workmanship. Any corrective work to maintain the
> performance in this warranty shall be carried out by the Contractor at
> no cost to the Government.

E. [Field Measuring:]{.underline} Following the awarding of the
contract, the Contractor shall make a detailed survey to verify the
dimensions for each storm window unit that is to be fabricated and
installed. Government-Furnished drawings provide approximate dimensions
and shall be verified by the Contractor. All window openings shall be
measured as deemed necessary by the Window Manufacturer for proper
sizing and functionality. All dimensions, quantities, sizes and
materials required to be furnished shall be fully understood by the
Contractor prior to installation. It is understood that the dimensioning
of all materials shall be the Contractor's responsibility. Failure to do
so will not relieve the Contractor from the need to furnish any and all
material that shall be required, in accordance with the specifications,
without any additional cost to the Government.

> F. [Fabrication:]{.underline} The Contractor shall provide all storm
> window units fully processed and pre-assembled with installation holes
> pre-drilled in the frame by the manufacturer in a manner that provides
> a uniform appearance and required support. Each storm window unit
> shall be installed in a blind-stop application and shall fit its
> respective opening so as not to require any cutting, ripping, or
> modification of the prime wood window or associated trim, or any
> modification to the storm window frame on the job site other than that
> required as part of the standard installation procedures to fit the
> window opening.
>
> G. [Samples:]{.underline} The Contractor shall provide a storm window
> sample, product literature and specifications for the storm window it
> intends to furnish for evaluation. The storm window sample shall be a
> miniature version of a full size unit; it shall contain all specified
> components including all hardware, parts, glass, etc. as proposed for
> this specific project and be fully operational. If a portable sample
> is unavailable, a representative "full size" display storm window
> shall be made available for inspection by the Contracting Officer's
> Technical Representative (COTR) at a local retail or wholesale
> establishment located no further than 60 miles from Gambrill House
> between the hours of 8:00 am and 4:00 pm, Monday through Friday. The
> window sample shall include all hardware, parts, glass, etc. as
> proposed for this specific project and be fully operational.
>
> H. [SCHEDULE:]{.underline} Work may be conducted between the hours of
> 7:00 am and 5:00 pm, Monday through Friday. A scheduling meeting
> between the Successful Contractor and the Contracting Officer and
> Contracting Officer's Technical Representative (COTR) shall be
> identified when the contract is awarded.

2.3 **[MATERIALS]{.underline}**

> A. [Major Components:]{.underline} All frame, stabilizer bars, sash
> and screen members shall be made from accurately extruded aluminum
> prime alloy having a minimum wall thickness of .050 inches.
>
> B. [Fasteners:]{.underline} All fasteners incorporated in the product
> shall be of non-magnetic stainless steel.
>
> C. [Window Hardware:]{.underline} All hardware shall be of aluminum,
> non-magnetic stainless steel, nylon or other non-corrosive materials
> compatible with aluminum. Wrought alloy or plastic hardware parts will
> not be acceptable.
>
> D. [Glazing:]{.underline} All glass shall be minimum l/8-in. clear,
> annealed glass
>
> E. [Screen:]{.underline} Screen cloth shall be a dark charcoal or
> black color fiberglass mesh.
>
> F. [Weather-strip:]{.underline} All weather-stripping shall be of
> materials compatible with aluminum and resistant to weathering.
> Flexible or rigid vinyl weather-strip, where used, shall be of high
> impact virgin polyvinyl chloride. Each glazed sash shall have full
> perimeter weather-stripping at inside contact with the unit frame and
> interlocking meeting rails.
>
> G. [Caulk:]{.underline} All Exterior joints except at weep holes on
> bottom rail shall be sealed with Class-A type caulking that meets
> Federal Specifications TI-OO230. The caulk color shall match the color
> of the new storm windows.

2.4 **[CONSTRUCTION & OPERATION]{.underline}**

A.  [Storm Window Frame:]{.underline} All storm window frames shall be
    joined at the corners using a square butt-joint corner assembly. The
    Triple-Track and Arched-Top storms windows shall have a stabilizer
    bar located and aligned with the meeting rail position of the
    corresponding prime window. All installation holes shall be
    predrilled in the frame by the manufacturer in a manner that
    provides a uniform appearance and required support. Each window sash
    channel in vertical operating units shall have a ratchet-action
    design with an automatic ventilation setting every 1". Adjustable
    bottom expanders shall be permitted with a maximum 1" height. No top
    or side expanders will be permitted. The sill and bottom expander
    shall be weeped for drainage.

> B. [Window Sash:]{.underline} Mitered corners shall be joined neatly
> by means of stainless steel corner keys securely peened inside the
> aluminum sash extrusions. Sash shall have all sharp corners de-burred
> and made smooth. Each triple-Track sash shall have a heavy-duty sash
> interlock at the meeting rail designed to securely lock the sash
> together when in the closed position. Sash units that rattle when
> operated or when subjected to wind conditions are not acceptable.
>
> C. [Glazing:]{.underline} Glass shall be securely glazed into aluminum
> extruded sash rails with continuous wrap-around marine vinyl glazing
> channel. The glazing channel shall have a uniform appearance with
> corners neatly tucked.
>
> D. [Screen:]{.underline} A screened moveable sash (half sash) shall be
> provided for all Triple-Track storm windows and a screened
> interchangeable sash shall be provided for all Arched-Top storm
> windows. Mitered corners shall be joined neatly by means of stainless
> steel corner keys securely peened within the screen frame extrusion.
> Screen cloth shall be secured in a manner to allow for easy
> replacement with a vinyl spline in the pre-bowed screen frame.
>
> E. [Removability:]{.underline} All Triple-Track and Arched-Top glazed
> and screen sashes shall remove easily to the interior through the
> clear opening of the interior prime window sash opening without
> affecting the operation or performance requirements of the window
> unit. All Transom and Sidelight glazed sashes shall be mechanically
> fixed to the frame in such a manner that allows the sash to be removed
> from the exterior side for cleaning or repair.

2.5 **[FINISH AND COLOR]{.underline}**

> [Standard Finish:]{.underline} Aluminum chemically etched medium
> matte, with clear anodized coating (or equivalent) that complies with
> AAMA Specification 603 performance requirements in a color that most
> closely matches the existing paint color used on the Gambrill House
> jambs and trim shall be applied to all aluminum frame and sash
> components. The Government will provide the Contractor with the paint
> color. It is the Contractor's responsibility to ensure adequate
> pricing is provided for a custom color if it requires an additional
> cost to produce the closest color match available. All assembly and
> installation screw heads shall be of the same or similar color as the
> master frame of the new storm window unless hidden from view. The COR
> shall make the final color selection from all finishes available from
> the Window Manufacturer.

2.6 **[STORM WINDOW INSTALLATION]{.underline}**

> A. [Locations:]{.underline} The location of each proposed storm window
> unit is noted on the attached Gambrill House Window Schedule -- 1^st^
> Flr., Gambrill House Window Schedule -- 2^nd^ Flr., and Gambrill House
> Window Schedule -- 3^rd^ and 4^th^ Flrs. The "HPTC Window Number" for
> each window that is a part of this project is listed in the attached
> Gambrill House Storm Window Survey and Gambrill House Exterior Transom
> Survey.
>
> B. [Preparation:]{.underline} The Government will be responsible for
> removing all portions of old storm window frames, repairing,
> replacing, or modifying existing stops as needed, scraping and/or
> removal of loose caulk and paint, filling existing holes and
> imperfections, and completing any necessary painting as required to
> permit the proper installation of new materials.
>
> C. [Installation:]{.underline} Each storm window unit shall be
> installed using a "Blind Stop" installation method. Storm windows
> shall be installed plumb, square, and level, and shall be securely
> fastened to adjacent construction in accordance with the Window
> Manufacturer's recommendations. Exposed surfaces shall be uniformly
> proportioned, both inside and out, for attractive appearance with
> stabilizer bars in alignment with the prime window meeting rails. Any
> storm window not installed in accordance with the specifications will
> be rejected, and shall be reinstalled in the proper manner.
>
> D. [Caulk:]{.underline} Caulking shall be Class \"A\", meeting Federal
> Spec TI-S-00230, and shall be of a color matched to the storm window
> unit. Each Triple-Track and Arched-Top storm window unit shall have
> caulk applied between the perimeter interior face of the storm window
> frame and the adjoining construction in a neat continuous 1/8"
> (approximate) bead. Each fixed-sash Transom and Sidelight storm window
> unit shall have caulk applied between the perimeter exterior face of
> the storm window frame and the adjoining construction in a neat
> continuous 1/8" (approximate) bead. It is understood that the
> application, and all caulking joints, shall be in accordance with the
> caulking manufacturer\'s recommendations for the most desirable
> results. Weep holes in bottom rail shall be kept clear and free of
> caulk.

2.7 **[FINAL INSPECTION]{.underline}**

> A. [Contractor Responsibilities:]{.underline} The Contractor shall
> protect all of his work and materials and is responsible for turning
> the finished installation over to the Government in a first class
> manner. Any damage to adjoining surfaces caused by the installation of
> new materials shall be replaced or properly repaired by the Contractor
> at his expense. After installation, the Contractor shall inspect and
> adjust all window sashes, screens, and hardware, so as to operate
> silently and smoothly without binding. The Contractor shall wipe down
> each storm window unit to eliminate dust and metal shavings, clean all
> storm window glass, and is responsible for cleaning the premises of
> any materials and debris created by the installation process. All work
> areas shall be left \"broom-swept clean\".
>
> B. [Government Responsibilities:]{.underline} The Contracting Officer
> and COR shall conduct a post-installation inspection of each storm
> window unit prior to taking final acceptance. Any storm window not
> installed in accordance with the specifications or found to be
> defective in operation, materials, or workmanship will be rejected and
> will not be accepted until all defects are corrected by the
> Contractor. Stained, discolored, abraded, or damaged storm windows
> that can not be repaired to meet approval of the Contracting Officer
> or COR, shall be replaced at no additional cost to the Government. The
> Government reserves the right to inspect each storm window on an
> individual basis as each unit is installed or on a group basis after
> all windows are installed.