**DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT STRUCTURAL ENGINEERING**

## Housing - Federal Housing Commissioner BULLETIN NO. 

###  

#  TO: DIRECTORS, SINGLE FAMILY HOCs ISSUE DATE 

#  DIRECTORS, MULTIFAMILY HUBs

#  

#### REVIEW DATE

#  

##### 

##### SUBJECT: 1. Item Description 

2.  **Name and address**

> **of Manufacturer**
>
> > This Structural Engineering Bulletin (SEB) should be filed with
> > other SEBs and related Bulletins on materials or products as
> > required by prescribed procedures.
>
> 1\. General:

This Bulletin sets forth specific requirements under the Technical
Suitability of Products Program for determining the eligibility of
housing to be constructed under HUD mortgage insurance, or other HUD
housing programs.

> 2\. Scope:
>
> This Bulletin applies only to the structural features of this method
> of construction. Final determination of eligibility is made by the
> appropriate HUD Field Office. Other factors considered by the Field
> Office will be valuation, location, architectural planning and appeal,
> mechanical equipment, thermal characteristics, and market acceptance.
> Consideration is also necessary to determine whether a specific
> property will qualify under the specific HUD program, when constructed
> according to the method outlined in this Bulletin, and where the
> structure is to be located.

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In geographical areas subject to hurricanes, earthquakes, or other
severe conditions affecting dwelling structures, the HUD Field Office
shall require additional safeguards in proposed designs, when necessary.

3\. Minimum Property Standards (MPS):

Compliance with HUD MPS is determined by the HUD Field Office on the
same basis as submissions involving conventional construction, except
for the special features described in this Bulletin.

4\. Inspection:

Field compliance inspections covering conventional items of construction
and any special features covered in this Bulletin shall be made in
accordance with prescribed procedures.

The appropriate HUD Field Office shall furnish a copy of a HUD field
inspection report to Headquarters, FHA Standards, Office of Manufactured
Housing Programs, when there is:

a\. Evidence of noncompliance with any portion of the system of
construction described in this Bulletin.

b\. Faulty shop fabrication, including significant surface defects.

c\. Damage to shop fabricated items or materials due to improper
transportation, storage, handling, or assembly.

d\. Unsatisfactory field workmanship or performance of the product or
system.

e\. Any significant degradation or deterioration of the product or
evidence of lack of durability or performance.

Periodic plant inspections will be made by HUD Field Office or State
Agency personnel in accordance with their prescribed procedures. Factory
inspection reports shall be submitted to HUD Headquarters, upon request.

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5\. Certification:

The manufacturer named in this Bulletin shall furnish the builder with
written certification stating that the product has been manufactured in
compliance with the HUD Minimum Property Standards (MPS), except as
modified by this Bulletin. The builder shall endorse the certification
with a statement that the product has been erected in compliance with
HUD MPS, except as modified by

this Bulletin, and that the manufacturer\'s certification does not
relieve the builder, in any way, of the responsibility under the terms
of the Builder\'s Warranty required by the National Housing Act, or
under any provisions applicable to any other housing program. This
certification shall be furnished to the HUD Field Office upon completion
of the property.

[OUTLINE DESCRIPTION, CATEGORY II CONSTRUCTION]{.underline}

[GENERAL]{.underline}:

Shop fabricated foam core panels for walls, foundation walls, floors,
and roofs for one-story dwelling units are furnished in this method of
construction. Components are transported to the building site, where
they are erected and assembled on conventional or all-weather wood
foundations.

All materials and methods of installation shall be in accordance with
HUD Minimum Property Standards (MPS), Use of Materials Bulletins (UM),
and Materials Releases (MR), except as may be specifically noted herein.
Plumbing, heating and electrical systems are field installed.

This Bulletin is based on a structural review of the Grandeur

Model of Enercept, Inc. Building Systems, but may be considered
applicable to all structurally similar units of this company.
Nonstructural items (such as architectural, plumbing, heating and
electrical features) are not covered by this Bulletin.

[SPECIFICATIONS]{.underline}:

Form HUD-92005, \"Description of Materials\" specifying only the
structurally related items (Nos. 1 to 12, 14, 26 and 27), as originally
submitted for technical suitability determination, describes the
materials that shall be used in construction of housing units under this
system of construction. Form HUD-92005, furnished with each application
for use under HUD housing programs, shall include as a minimum the same
structural materials.

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[DRAWINGS]{.underline}:

The following drawings by Enercept, Inc. shall be considered an integral
part of this Bulletin:

[Drawing No.]{.underline} [Date]{.underline} [Description]{.underline}

0165-001 July 14, 1995 Floor Plan

0165-002 July 14, 1995 Elevations

0165-003 July 14, 1995 Wall Panel Layout

0165-004 July 14, 1995 Roof & Floor Panels

ECPT-7 July 14, 1995 Sill to Subfloor Installation

ECPT-8 July 14, 1995 Standard Panel Installation

ECPT-10 July 14, 1995 King Post Installation

ECPT-11 July 14, 1995 Upper Plate Installation

ECPT-13 Oct. 25, 1985 Center Beam & Support Wall

ECPT-18 July 14, 1995 Roof Panel Installation

ECPT-26 July 14, 1995 Gable Panel

ECPT-28 July 14, 1995 Window Lintel Panel

ECPT-29 July 14, 1995 Roof Panel

ECPT-34 July 14, 1995 Upper & Lower Plates

ECPT-37 Nov. 18, 1982 Center Support Post

ECPt-38 July 14, 1995 Roof - Gable Connection

ECPT-40 July 14, 1995 Floor Panel

ECPT-44 July 14, 1995 Roof Panel - Beam Connection

ECPT-45 July 14, 1995 Roof Panel Connections

ECPT-46 July 14, 1995 4\'-0\" Standard Panels

ECPT-47 July 14, 1995 2\'-0\" Standard Panels

ECPT-48 July 14, 1995 1\'-0\" Standard Panels

ECPT-53 July 14, 1995 Gable Detail

ECPT-57 July 14, 1995 Last Wall Panel Installation

ECPT-58 July 14, 1995 Center Wall Detail

ECPT-59 July 14, 1995 Last Roof Panel Installation

ECPT-60 July 14, 1995 Corner Panel Installation

ECPT-61 July 14, 1995 Basement Sill Plate Installation

ECPT-69 July 6, 1995 Door Frame Detail & Installation

ECPT-70 July 14, 1995 Basement Wall Detail

ECPT-72 July 14, 1995 Wall Sections

ECPT-90 July 14, 1995 4\'-0\" Basement Panels

ECPT-106 July 14, 1995 Installation of Corner Panel

ECPT-107 July 14, 1995 Roof Panel Installation

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The Builder shall submit construction drawings to the HUD Field Office
with each application under HUD housing programs, which shall include
the same or similar structural features as shown on the drawings listed
above. Copies of these listed drawings shall also be furnished to the
HUD Field Office by the Builder upon request.

[SPECIAL CONSTRUCTION FEATURES]{.underline}:

[Wall Panels and Partitions]{.underline}: Wall Panels consist of a 5
1/2\" thick expanded polystyrene foam core faced on both sides with
1/2\" thick strandboard or waferboard skins bonded to the core with a
non-flammable contact adhesive. Density of the foam core is
approximately 1.0 pcf. Wall panels are assembled in standard 4 ft. or
special sized modules with a flat 2 x 4 stud fastened to each face. A
double 2 x 6 top plate and a single 2 x 6 sill plate are field
installed. Partitions are conventionally framed. All interior surfaces
are covered with 1/2\" thick gypsum wallboard attached on-site to
particleboard skins using adhesive and/or mechanical fasteners.

[Basement Walls]{.underline}: All Weather Wood Foundations (AWWF) shall
be installed according to Technical Report No. 7 and the All Weather
Wood Foundation System Manual, by the National Forest Products
Association. Basement wall panels consist of 5 1/2\" thick expanded
polystyrene foam core faced on the interior side with 1/2\" thick
strandboard or waferboard, and on the exterior with 1/2\" thick treated
FDN grade plywood, laminated to the foam core.

Basement wall panels are assembled in standard 4\'-0\" wide or special
size modules with treated 2 x 6\'s at 16\" on center or 2\'-0\" on
center, as required by design loads. Treated 2 x 6 sill plates are field
installed. All interior surfaces are covered with 1/2\" thick gypsum
wallboard attached on-site to interior skins using adhesive and/or
mechanical fasteners.

[Roof]{.underline}: Roof panels consist of a 7 3/8\" thick expanded
polystyrene foam core faced on both sides with 1/2\" thick waferboard or
strandboard skins bonded to the core, and 2 x 8\'s @ 4\' on center.
Density of the foam core is approximately 1.0 pcf. Panels are 4\'-0\"
wide and up to 16\'-0\" long, generally spanning from the outside wall
to a center ridge beam. Panels are fastened to exterior walls and to
center ridge beam with galvanized steel connector plates. Exposed panels
(ceilings) are covered on-site with 1/2\" thick gypsum wallboard, using
adhesive and/or mechanical fasteners.

[Floor Panels]{.underline}: Floor panels consist of a 7 3/8\" thick
expanded polystyrene foam core faced on both sides with 1/2\" thick
particleboard skins bonded to the core. Density of the foam core is
approximately 1.0 pcf. Floor framing members are spaced at 2\'-0\" on
center. Panels are 4\'-0\" wide and up to 16\'-0\" long.

[Fire Protection and Interior Finish]{.underline}: Roof and wall panels
shall have a 20 minute fire rating and a 15 minute finish fire rating in
accordance with ASTM E 119. The foam core shall have a maximum flame
spread rating of 25 in accordance with ASTM E 84, and a smoke density
rating of 450 or less in accordance with National Fire Protection
Association (NFPA) No. 258.

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Caution shall be exercised in the use of foam plastics. If foam plastics
are allowed to remain exposed or unprotected they may, under some
circumstances, produce rapid flame spread, quick flashover, intense
heat, dense smoke, toxic and flammable gases and may present a serious
fire hazard. The manufacturer of the foam plastic or the Society of the
Plastics Industry, Inc., shall be consulted for instructions to minimize
the risk in the use of these products in manufacture and in
construction.

[DESIGN AND CONSTRUCTION REQUIREMENTS]{.underline}:

[Construction Guide]{.underline}: Applicable sheets of the Enercept,
Inc. \"Foam Core Panel Construction Guide\", latest edition, shall also
be considered an integral part of this Bulletin.

[Design Loads]{.underline}: The method described in this Bulletin is
based on maximum design loads of 40 psf for snow, Seismic Zone 1 and a
Basic Wind Speed of 100 mph and Exposure C (ASCE 7-88). The manufacturer
shall submit structural calculations to the local HUD Office if housing
units are to be located in geographical areas where these conditions are
exceeded.

[Framing of Loadbearing Walls]{.underline}: Wood-to-wood connections
shall be provided between bearing walls and roof/ceiling or floor
construction. Floor covering, including carpeting and vinyl

tile, shall not be continued under loadbearing walls.

[MANUFACTURING PLANT]{.underline}:

Components covered under this Bulletin will be produced in the following
plant:

Enercept, Inc.

3100 9th Avenue SE

Watertown, SD 57201

The Sioux Falls HUD Office will inspect this plant in accordance with
prescribed procedures.

[QUALITY CONTROL]{.underline}:

The appropriate HUD Field Office in whose jurisdiction the manufacturing
plant is located must review and approve plant fabrication procedures
and quality control program, and shall report to Headquarters in
accordance with outstanding instructions. The quality control program
shall include field erection or supervision by Enercept, Inc.

[CERTIFICATION AND PRODUCT LABELING]{.underline}:

Enercept, Inc. shall certify that each of the products listed in this
report conforms to the requirements of this SEB. Each certified product
or its packaging, as identified in this report shall be marked with the
following information:

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1.  Enercept, Inc.

2.  Product Name

3.  Plant Identification

4.  Evaluation Report Number (HUD SEB 1067 Rev. 5)

5.  Quality Control Agency name and/or trademark

[RECORD OF PROPERTIES]{.underline}:

The manufacturer shall provide a list of the first ten properties in
which the component or system described in this Bulletin is used. The
list shall include the complete address, or description of location, and
approximate date of installation or erection. Failure of the
manufacturer to provide HUD with the above information may result in
cancellation of this Bulletin.

[NOTICE OF CHANGES]{.underline}:

The manufacturer shall inform HUD in advance of changes in production
facilities, transportation, field erection procedures, design, or of
materials used in this product. Further, the manufacturer must inform
HUD of any revision to corporate structure, change of address or change
in name or affiliation of the prime manufacturer. Failure of the
manufacturer to notify HUD of any of the above changes may result in
cancellation of this Bulletin.

[EVALUATION]{.underline}:

This SEB shall be valid for a period of three years from the date of
initial issuance or most recent renewal or revision, whichever is later.
The holder of this SEB shall apply for a renewal or revision 90 days
prior to the Review Date printed on this SEB. Submittals for renewal or
revision shall be sent to:

U. S. Department of Housing and Urban Development

FHA Standards, Office of Manufactured Housing Programs

451 7^th^ Street, SW Room 9168

Washington, DC 20410-8000

Appropriate User Fees shall be sent to:

U. S. Department of Housing and Urban Development

Miscellaneous Income -- Technical Suitability of Products Fees

Bank of America

P. O. Box 198762

Atlanta, GA 30384-8762

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The holder of this SEB may apply for revision at any time prior to the
Review Date. Amendments or minor revisions may be in the form of a
supplement.

If the Department determines that a proposed renewal or supplement
constitutes a revision, the appropriate User Fee for a revision will
need to be submitted in accordance with Code of Federal Regulations 24
CFR 200.934, \"User Fee System for the Technical Suitability of Products
Program\", and current User Fee Schedule.

[CANCELLATION]{.underline}:

Failure to apply for a renewal or revision shall constitute a basis for
cancellation of the SEB. HUD will notify the manufacturer that the SEB
may be canceled when:

1\. conditions under which the document was issued have changed so as to
affect production of, or to compromise the integrity of the accepted
material, product, or system,

2\. the manufacturer has changed its organizational form without
notifying HUD, or

3\. the manufacturer has not complied with responsibilities it assumed
as a condition of HUD\'s acceptance.

However, before cancellation, HUD will give the manufacturer a written
notice of the specific reasons for cancellation, and the opportunity to
present views on why the SEB should not be canceled. No refund of fees
will be made on a canceled document.

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This Structural Engineering Bulletin is issued solely for the captioned
firm and is not transferable to any person or successor entity.

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