Scottdel Carpet Cushion
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Department of Housing and Urban Development

ASSISTANT SECRETARY FOR HOUSING
FEDERAL HOUSING COMMISSIONER

TO:DIRECTORS, HOUSING DEVELOPMENT DIVISION

USE OF MATERIALS
BULLETIN NO 72a
Date Issued:
August 15, 1993
SUBJECT: HUD BUILDING PRODUCT STANDARDS AND CERTIFICATION
PROGRAM FOR CARPET CUSHION

The technical description, requirements and limitations expressed herein do not constitute an endorsement, approval or acceptance by the Department of Housing and Urban Development (HUD / FHA) of the subject matter, and any statement or representation, however made, indicating approval or endorsement by the Department of Housing and Urban Development is unauthorized and false, and will be considered a violation of the United States Criminal Code 18, U.S.C. 709.

Any reproduction of this Bulletin must be in its entirety and any use in sales promotion or advertising is not authorized.

Subject to good workmanship, compliance with applicable codes, and the methods of application listed herein, the products described in this bulletin may be considered suitable for HUD housing programs, including Housing for the Elderly and Care-Type Housing.

The eligibility af a property under these programs is determined on the property as an entity and involves the consideration of underwriting and other factors not indicated herein. Thus, compliance with this bulletin should not be construed as qualifying the property as a whole, or any part thereof, as to its eligibility.

The method of application for the products listed herein are considered a part of the HUD Minimum Property Standards and shall remain effective until this bulletin is cancelled or superseded.

HUD BUILDING PRODUCT STANDARDS AND CERTIFICTION PROGRAM FOR CARPET CUSHION

GENERAL - ADMINISTRATIVE AND PROCEDURES:

This certification program shall be administered by organizations that qualify under the Administrator Qualifications and Procedures of the HUD Building Product Standards and Certification Program, described in 24 CFR 200.935, except as modified by the provisions of this Use of Materials Bulletin No. 72a. Copies of these Administrator Qualifications and Procedures for the HUD Building Products Standards and Certification Program may be obtained from:

Department of Housing & Urban Development

Office of Manufactured Housing & Regulatory Functions

451 Seventh Street, SW, Attention Mail Room B-133

Washington, DC 20410

The procedures for carrying out the certification program for carpet cushion shall be in accordance with 24 CFR Section 200.935 and with Section 200.948 which supplements 200.935 by providing that:

1. The certification label containing the Administrator's mark shall be permanently affixed every 10 ft. on the product.

2. The following additional information shall be on the certification label:

(a) The manufacturer's name.

(b) The manufacturer's statement of conformance to UM 72a and type and class.

3. At least every six months, the Administrator shall visit the manufacturer's facility to select a sample of each certified carpet cushion for testing by a laboratory accredited by the National Voluntary Laboratory Accredited Program (NVLAP) of the U.S. Department of commerce.

The Administrator also shall review the quality assurance procedures every six months to assure that they are being followed by the manufacturer.

STANDARDS:

All carpet cushion shall be tested, in conformance with the requirements in Table 1. The maximum thickness of each class commercially available, shall be tested.

TABLE 1 REQUIREMENTS FOR CARPET CUSHION
Type Characteristics Class 1 Class 2 Test Method
A. Prime density lbs./cu. ft. -5%
thickness in. -5%
comp. set max. % at 50% def.
tensile strength lbs. min.
elongation % min.
CFD psi. at 65% def. min.
2.2
0.37
15.0
10.0
100.0
0.7
not
rec. for
class 2
ASTM D 3574-91
B. Grafted
Prime
density lbs./cu. ft. -5%
thickness, in. -5%
comp. set max. % at 50% def.
tensile strength, lbs. min.
elongation, % min.
CFD psi. at 65% def. min.
IFD psi. max. 5%
2.7
0.37
15.0
10.0
100.0
1.4
120.0
2.7
0.25
15.0
10.0
100.0
1.4
120.0
ASTM D 3574-91

C. Densified
Prime
elongation % min.
density lbs/cu. ft. -5%
thickness in -5%
comp. set max. % at 50% def.
tensile strength lbs. min.
(CFD) psi. at 65% def. min.
100.0
2.2
0.31
15.0
10.0
0.7
100.0
2.7
0.25
15.0
10.0
1.30
ASTM D 3574-91
D. Bondedclass 1 cushionsclass 2 cushions density lbs./cu. ft. -5%
thickness in. -5%
comp. set max. % at 50% def.
tensile strength lbs. min.
elongation % min.
particle size in max.
debis max. %
(CFD) psi. at 65% def.
5.0
0.37
15.0
5.0
45.0
0.5
1.0
4.0
6.5
0.375
15.0
6.0
45.0
0.5
1.0
4.5
ASTM D 3574-91

8 lbs/cu. ft is
acceptable

E. Mechanically
Frothed
elongation % min.
density lbs./cu. ft. -5%
thickness in. -5%
comp. set max. at 50% def.
ash content, max.
comp. res. psi. at 25% def. min.
45.0
10.0
0.25
15.0
50.0
2.5
45.0
12.0
0.25
15.0
50.0
4.0
ASTM D 3676-89



ASTM D 297-90
F. Rubberized
Hair
weight, oz./sq. yd. -5%
thickness in. -5%
density lbs./cu. ft. -5%
comp. set max. % at 24% def.
tensile strength, lbs. min.
min. fiber by weight %
40.0
0.27
12.3
15.0
30.0
85.0
50.0
0.37
11.1
15.0
30.0
85.0
ASTM D 3676-89


ASTM D 1667-90
ASTM D 2646-87
ASTM D 629-88
G. Rubberized
Jute
weight, oz./sq. yd. -5%
thickness, in. -5%
density, lbs/cu. ft. -5%
comp. set max. %
tensile strength lbs. min.
min. fiber by weight %
32.0
0.31
8.5
20.0
30.0
85.0
40.0
0.37
8.9
20.0
30.0
85.0
ASTM D 3676-89


ASTM D 1667-90
ASTM D 2646-87
ASTM D 629-88
H. Synthetic
Fibers
weight, oz/sq. yd. -5%
thickness, in. -5%
density, lbs/cu. ft. -5%
comp. set max. %
tensile strength, lbs. min.
cellulosic % max.
min. fiber by weight %
22.0
0.25
6.5
20.0
30.0
5.0
85.0
28.0
0.30
6.5
20.0
30.0
5.0
85.0
ASTM D 3676-89


ASTM D 1667-90
ASTM D 2646-87
ASTM D 629-88
I. Resinated
Recycled
Textile
Fibers
weight, oz/sq. yd. -5%
thickness in. -5%
density, lbs/cu. ft. -5%
comp. set max. % at 50% def.
tensile strength lbs. min.
min. fiber %
max. cotton fiber %
resin solids no fillers %
24.0
0.25
7.3
20.0
30.0
85.0
10.0
100.0
30.0
0.30
7.3
20.0
30.0
85.0
10.0
100.0
ASTM D 3676-89


ASTM D 1667-90
ASTM D 2646-87
ASTM D 629-88
J. Flat
Rubber
weight oz/sq. yd. -5%
density lbs/cu. ft. -5%
thickness in. -5%
comp. set max. % at 50% def.
tensile strength lbs. min.
CFD psi. at 45% def. min.
56.0
18.0
0.22
15.0
8.0
0.25
64.0
21.0
0.22
15.0
8.0
1.0
ASTM D 3676-89
ASTM D 3676-89
ASTM D 3676-89
ASTM D 2646-87
ASTM D 3676-89
K. Rippled
Rubber
weight oz./sq. yd. -5%
density, lbs./cu. ft. -5%
thickness, in. -5%
comp. set max. % at 50% def.
tensile strength, lbs. min.
comp. res., psi. at 25% def. min.
48.0
14.0
0.28
20.0
8.0
0.5
64.0
16.0
0.33
20.0
8.0
0.8
ASTM D 3676-89
ASTM D 3676-89
ASTM D 3676-89
ASTM D 3676-89
ASTM D 2646-87
ASTM D 3676-89

Maximun thickness for any product is 0.5 inches. For rubber and fiber cushion, products may be thicker than the minimum thicknesses noted in the above table provided densities are maintained.

Class 1: Light and Moderate Traffic (such as living rooms, dining rooms, bedrooms, recreational rooms and corridors. Class 2 may be used in Class 1 applications.)

Class 2: Heavy Duty Traffic (for heavy traffic use at all levels, but specifically for public areas such as lobbies and corridors in multi-family facilities). The Carpet Cushion Council also recommends Class 2 for stairs and hallways.

INSTALLATION:

The installation of carptet cushion shall be in accordance with the manufacturer's installation instructions.

ADMINISTRATORS:

Qualified organizations interested in becoming Administrators under the HUD Building Product Standards and Certification Program for Carpet Cushion shall submit their request to HUD Headquarters, Office of Manufactured Housing & Regulatory Functions, 451 7th Street, SW, Attention Mail Room B-133, Washington DC 20410.

HUD Field Offices will maintain a file of all directories furnished by the Administrators and accept only products listed in the directories. The following Administrators have been accepted by HUD as qualified to validate carpet cushion under Use of Materials Bulletin No. 72a.


MEA Certification, Inc.

600 Houze Way, Suite C1

Roswell, GA 30076

Associated Laboratories, Inc.

P.O. Box 15705

Dallas, TX 75215

ETL, Inc.

Route 11, Industrial Park

Cortland, NY 13045