Aspen’s Underlayment Advantage

Aspen Synthetic UnderlaymentFelt Paper
95 lbs Tensile Strength62 lbs Tensile Strength
120 Puncture PSI Strength48 Puncture PSI Strength
50 lbs Tear Strength1.5 lbs Tear Strength
230 lbs cap nail strength40 lbs cap nail strength
.05 Water Vapor Transmission (Perm)5 Water Vapor Transmission (Perm)
Pass Liquid Transmission TestN/A Liquid Tranmsission Test
Water ProofWater Resistant
6 month UV Resistant30 day UV Resistant
Pass ASTM Type I, II, and IV testPass ASTM Type I, II Only
Textured Walking Surface for SafetyNo Texture
N/A Moisture Buckling.5 in Moisture Buckling
-70 to 250 Degrees Temperature Range32-150 Degrees Temperature Range
N/A Oil Leak TestFail Oil Leak Test
100% RecyclableAsphalt from crude Oil
Lifetime WarrantiesNo Warranties
Underlayment on a home
Underlayment on a business