TopShield SG PS/MAX HT is a 45-mil thick self-adhered synthetic underlayment comprised of a synthetic facer (a multilayer laminated non-woven and woven scrim), a polymer-modified bitumen adhesive and a split release liner. The underlayment has a 3 inch edge lap of adhesive, which is protected by an end-revealer. This end-revealer is removed to ensure secure adhesive adhesion in the overlapping areas. The underlayment is available in custom colors and in rolls of 36 inches wide by 67 feet long, and 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
UL 790 |
2024, 2021, and 2018 IBC and IRC
2024 IWUIC
2025 CWUIC
2023 and 2020 FBC
2025, 2022 CBC, CRC
2023 LABC, LARC |
CCRR-0332 |
