Vinyl Siding

Length of panels Can be as long as 40 feet 12 – 12 1/2 feet is average
Width  6 1/2 to 10 inches
Applicable Standards ASTM E119 This means that the fire endurance ratings are similar to walls

without vinyl. For example, having vinyl siding doesn’t speed up a fire.

ASTM D3679 Means that the vinyl at least met the established requirements for

the methods used to test the material, dimensions, expansion, appearance and windload resistance.

Thickness  Optimum panel thickness is between .038 and .48 inches. Thicker, rigid panels provide better wind resistance, protection against damage, and lay flatter and straighter.
Panel Projection The amount the panel sticks out from the side of the home. Look for the maximum projection for the style of vinyl selected.
Chemistry  Look for a high concentration of titanium oxide.
Formulation  High temperature fusion and after formulated manufacturing methods result in stronger panels.
Windload Pressure The amount of wind pressure the panels can take before coming off or breaking Look for a negative windload pressure, it gives a truer picture of windload pressure than a positive test.


Thickness 1/4 to 1/2" nominal Min-Max .22 to .525
Thickness Swelling 8% Maximum average per panel
Water Absorption 12% Based on the maximum average weight of panels
Edge Straightness Shall not exceed 1/64 inch from corner to corner on same edge
Applicable Standards Model building codes all over the US Recognized
ANSI product standard Conforms
American Hardboard Association Certified
Maker may be indicated on the back of the board using these numbers AHA01 Boise Cascade – MN
AHA02 Weyerhauser – OK
AHA03 Temple – TX
AHA 04 Louisiana Pacific – NC
AHA 05 Forestex – OR
AHA06 Masonite – CA
AHA07 Georgia Pacific – SC
AHA08 Masonite – CA
AHA09 Evanite – CO
AHA10 Weyerhauser -OR
AHA11 Millian Blodel – Ontario
AHA12 Masonite – PA

Cedar Shakes and Shingles

Applicable Standards   Cedar Shake and Shingle Bureau The only shake and shingle association listed by name in all US Model Building Codes
Cert-label Only Certi-Labeled products have been inspected and meet the standards for quality, material, packaging and shipping.


Thermal Mass The ability of a heavy, dense material to store heat and gradually release it House stays warm in the winter and cool in the summer
Sizes There are 12 sizes of brick; each given a name by the US Brick Manufacturers, these names are commonly used in the industry Modular, Standard, Engineer Modular, Engineer Standard, Closure Modular, Closure Standard, Roman, Norman, Engineer Norman, Utility, King, Queen
Units Clay and shale units can be made in various sizes and shapes and are either hollow or solid, more than one type of unit can be used in an application
Further Information Brick Industry of America There are too many types of shale and clay, variety of units that can be used in combination and the sizes of the bricks for a chart of this type.


Thickness (dry film) .80 to 1.00 millimeters Min-Max .22 to .525
Applicable Standards    Aluminum Association Created a 4 digit numbering system, each number represents a different aspect of the aluminum
There are many standards associated with the many different aluminum alloys; examples are:  
D714 After 3000 hours in 100% relative humidity there is no loss of gloss, no cracking or peeling
D2244 Shall not fade more than 5 color units in 5 years after all dirt has been removed
ASTM B117 Can withstand 5% salt fog for 3000 hours
Temper Temper is the term for the hardness or toughness of aluminum Tempers describe how the aluminum will be processed and follow this designation system.

F- Fabricated

O- Annealed

H- Cold rolled and strain hardened

W – Solution heat treated

T- Thermally treated

Chemistry Melting Point 660° C

The aluminum for siding is combined with another metal such as copper to give it strength