Technical Specifications

Important fire safety information for the building trades, specifiers,
professionals and do-it-yourself installers:
When rigid vinyl siding is exposed to significant heat or flame, the vinyl will soften,
sag, melt, or burn and may thereby expose the material underneath. Care must be
exercised when selecting underlay materials because many underlays are made from
organics that are combustible. You should ascertain the fire properties of any underlay
prior to installation. All building materials should be installed in accordance with local,
state and federal building codes and fire regulations.
WINDLOAD PROPERTIES
All Gentek siding products are designed to withstand a minimum of 100 mph windloads
and are suitable for most areas. The products can be used in areas with higher windloads,
but installation procedures, choice of product and building code jurisdiction are important
factors to be considered. The windspeed rating (in mph) is calculated using VSI’s
windspeed calculation guidelines. Additional information is available if required.
BUILDING CODES
Gentek vinyl products meet or exceed the following building code specifications:
ICC-ESR – 1133
CCMC – 06541-L
New York City MEA 132-94-M
FHA/HUD Minimum Property Standards
INSTALLATION
A complete vinyl siding installation manual is available at vinylsiding.org.
GENTEK CONCORD VINYL SIDING
Produced to precise tolerances using formulated compounds specifically designed for
the plastic building products industry according to ASTM D4216, meeting or exceeding
the following:
Property ASTM Test Results
Tensile Strength (psi) D-638 6,700
Modulus of Elasticity (psi) D-638 410,000
Izod Impact (70°F) D-256 3.6 (ft-lb/in of notch)
Izod Impact (32°F) D-256 2.0 (ft-lb/in of notch)
Flexural Strength (psi) D-790 14,000
Coefficient of Linear D-696 5.3 x 10
-5
(mm/mm °C)
Expansion 2.9 x 10
-5
(in/in °F)
Deflection Temperature
Under Load 264 psi (°C) D-648 73
PRODUCT PHYSICALS
All siding products and accessories are made with solid color throughout. The siding
products and accessories meet or exceed the ASTM Specification for Rigid Poly Vinyl
Chloride (PVC) Siding D3679.
The siding compound meets Class 2 requirements and conforms to weathering
performances as described in ASTM 3679.
Color: Spectrophotometer controlled
Gloss: Gardner gloss meter controlled
Lock: Dimensionally controlled
All products meet or exceed ASTM 3679 thickness (nominal) requirements:
Concord Vinyl Siding 0.042"
WARRANTY
All Gentek vinyl siding brands carry a Lifetime Limited Warranty including fade and
hail protection. Warranty is transferable if the home is sold. See printed warranty for
complete details.
FIRE RESISTANCE RATINGS
Gentek vinyl siding products meet or exceed all building code requirements throughout
the United States and Canada. In addition to meeting these code requirements,
Gentek vinyl sidings have been fire rated by Underwriters Laboratories (UL) to be used
in one-hour rated designed walls U026 and U032 and a two-hour rated wall, U301.
UL inspects the manufacture of the vinyl products quarterly to certify that Gentek
vinyl products are manufactured consistently. The vinyl products have been tested
as follows:
Property ASTM Test Results
Average Burn Distance D-635 20mm
Average Burn Time D-635
<
5 seconds
Flash Ignition Temperature D-1929 752°F
Self Ignition Temperature D-1929 860°F
Flame Spread Index E-84 15
Smoke Developed Index E-84
<
400
Fire Resistance E-119 1-hour rated*
2-hour rated*
* See UL Fire Resistance Directory Control No. 1N60. E-119 is equivalent to UL-263 and
E-84 is equivalent to UL-723.
ARCHITECTURAL SPECIFICATIONS
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