Physical Description

GMC Roofing Felt is an industry leading, superior quality “authentic” asphalt saturated organic felt underlayment.  All GMC products meet various ASTM standards.

4 Square Standard

15 ASTM D 4869-05 Type I covers 432 Sq Ft.

Is also available in a 324 Sq Ft roll

Width: 39 3/8″

Is packaged on 36 rolls/pallet, 36 pallets/truckload

Download the Data Sheet

2 Square Standard

30 ASTM D 4869-05 Type II covers 216 Sq Ft

Width: 39 3/8″

Is packaged on 36 rolls/pallet, 36 pallets/truckload

Download the Data Sheet

18″ 30 ASTM

18″ 30 ASTM D 226-05 covers 180 Sq Ft

Width: 18″

Is packaged 32 rolls per pallet

Download the Data Sheet

22″ 30 ASTM

22″ 30 ASTM D 226-05 covers 220 Sq. Ft.

Width: 22″

Is packaged 32 rolls per pallet

Download the Data Sheet

4 Square ASTM

15 ASTM D 226-05 Type I covers 432 Sq. Ft.

Is also available in a 324 Sq. Ft. roll

Width: 39 3/8″

Is packaged on 25 rolls/pallet, 34 pallets/truckload

Download the Data Sheet

2 Square ASTM

30 ASTM D 226Y-05 Type II covers 216 Sq. Ft.

Width: 39 3/8″

Is packaged on 25 rolls/pallet, 34 pallets/truckload

Download the Data Sheet

Glass Base Sheet “GBS 40”

Download the Data Sheet

MSR “Mineral Surface Roll Roofing”

Download the Data Sheet

Organic Base Sheet “Organic 40”

Download the Data Sheet