FT Synthetics Silver is a mechanically attached synthetic underlayment comprised of an embossed non-woven top scrim and a woven bottom scrim with a polymeric laminated facer. The underlayment has an overall weight of 2.24 pounds per 100 square feet, and it is available in rolls 48 inches wide by 250 feet long.
FT Synthetics Platinum is a mechanically attached synthetic underlayment comprised of an embossed non-woven top scrim and a woven bottom scrim with a polymeric laminated facer. The underlayment has an overall weight of 3.37 pounds per 100 square feet, and it is available in rolls 48 inches wide by 250 feet long.
PHYSICAL RATINGS
| PRODUCT |
TEST METHOD |
TEST PROCEDURE |
RESULTS |
FT Synthetics
Silver and Platinum Underlayments |
ASTM D226 |
Unroll-ability |
Meets Type II |
| Breaking Strength |
Meets Type II |
| Pliability |
Meets Type II |
| Loss on Heating |
Meets Type II |
FT Synthetics
Silver and Platinum Underlayments |
CSA A123.3 |
Unroll-ability |
Meets Type 3 |
| Breaking Strength |
Meets Type 3 |
| Pliability |
Meets Type 3 |
| Loss on Heating |
Meets Type 3 |
| Liquid water transmission |
Meets Type 3 |
FIRE CLASSIFICATION
Class A Assemblies
| Assembly No. |
E108-RFU-34424 |
Slope:
Deck Type:
Details: |
2:12 or greater
Combustible
- Minimum nominal 3/8" thick Code Compliant exterior grade plywood
- A single layer of FT Synthetics Silver or Platinum underlayment mechanically fastened to the plywood sheathing every 12 inch oc in the field and on the perimeter using plastic cap nails
- 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
| Product |
Test Method |
Building Code |
Report No. |
FT Synthetics
Silver and Platinum Underlayments |
ICC-ES AC188
ASTM D8257 |
2024, 2021, 2018 IBC
2024, 2021, 2018 IRC
2023 FBC
2025, 2022 CBC
2025, 2022 CRC |
CCRR-1028 |
The underlayments are also under a Quality Assurance program for the following programs:
| Product |
Product Approval No. |
| FT Silver and Platinum Underlayments |
FL # 20853 |
