TopShield SG PS/MAX HT is a self-adhered synthetic underlayment comprised of a synthetic facer (non-woven scrim laminated onto a woven scrim), modified bitumen as the adhesive material, and a release liner. The underlayment is grey in color on the exposed side. The underlayment has a 3-inch edge lap where adhesive is applied to the non-woven fabric to allow for a secure overlap area. The adhesive is protected with a polymeric remover film. The nominal weight of the underlayment is 15.4 pounds per 100 square feet. The underlayment is available in rolls of 36 inches wide by 72 feet long.
Class A Assemblies
| Assembly No. |
E108-RFU-56928 |
Slope:
Deck Type:
Details:
|
2:12 or greater
Combustible
- Minimum nominal 3/8” thick Code Compliant exterior grade plywood
- A single layer of TopShield SG PS/MAX HT self-adhered roofing underlayment installed using the product's peel and stick backing.
- Three-tab asphalt shingles Listed per ASTM D3462 with a minimum weight of 190 pounds per 100 square feet installed per manufacturer’s installation instructions
|
CODE COMPLIANCE RESEARCH REPORT
| Evaluation Method |
Building Code |
CCRR Number |
ICC-ES AC188
ASTM E108
ASTM D1970 |
2024, 2021, and 2018 IBC and IRC
2024 IWUIC
2023 and 2020 FBC
2022 CBC
2022 CRC |
CCRR-0332 |
