MaxFelt™ 30 is a 9-mil thick mechanically attached synthetic roofing underlayment composed of a polypropylene woven scrim laminated with a polypropylene non-woven layer on the exposed side and a polyolefin coating layer on the sheathing side. The underlayment is available in custom colours and supplied in rolls measuring 48 inches wide by 250 feet long and 60 inches wide by 200 feet long.
MaxFelt™ XT is a 7-mil thick mechanically attached synthetic roofing underlayment composed of a polypropylene woven scrim laminated with a polypropylene non-woven layer on the exposed side and a polyolefin coating layer on the sheathing side. The underlayment is available in custom colours and supplied in rolls measuring 48 inches wide by 250 feet long and 60 inches wide by 200 feet. long.
MaxFelt™ 15 is a 6-mil thick mechanically attached synthetic roofing underlayment composed of a polypropylene woven scrim laminated with a polypropylene non-woven layer on the exposed side and a polyolefin coating layer on the sheathing side. The underlayment is available in custom colours and supplied in rolls measuring 48 inches wide by 250 feet long and 60 inches wide by 200 feet long.
PHYSICAL RATINGS
| PRODUCT |
TEST METHOD |
TEST PROCEDURE |
RESULTS |
| MaxFelt 30, MaxFelt XT, and MaxFelt 15 Synthetic Roofing Underlayments |
ASTM D226 |
Unroll-ability |
Meets Type II |
| Breaking Strength |
Meets Type II |
| Pliability |
Meets Type II |
| Loss on Heating |
Meets Type II |
| 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 |
| ASTM D4869 |
Unroll-ability |
Meets Type IV |
| Breaking Strength |
Meets Type IV |
| Pliability |
Meets Type IV |
| Loss on Heating |
Meets Type IV |
| Liquid Water Transmission |
Meets Type IV |
| Tear Strength |
Meets Type IV |
| Dimensional Stability |
Meets Type IV |
| CAN/CSA A220 |
All test procedures applicable to underlayments for use in areas having 3500 degree days or less below 18 degrees |
Meets Standard Requirements |
FIRE CLASSIFICATION
Class A Assemblies
| Assembly No. |
E108-RFU-45801 |
Slope:
Deck Type:
Details:
|
2:12 or greater
Combustible
- Minimum nominal 15/32” thick Code Compliant exterior grade plywood
- A single layer of MaxFelt™ 30, MaxFelt™ XT, or MaxFelt™ 15 roofing 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
| Evaluation Method |
Building Code |
CCRR Number |
ICC-ES AC188
ASTM D8257
ASTM E108
UL 790 |
2024, 2021, and 2018 IBC
2024, 2021, and 2018 IRC
2024 IWUIC
2023 FBC
2025, 2022 CBC
2025, 2022 CRC
2025 CWUIC
2023 LABC
2023 LARC |
CCRR-1036 |
Florida Product Approval
| Report Number |
Product Covered |
| FL No. 29705 |
MaxFelt 15, MaxFelt XT and MaxFelt 30 |
