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photo of HPR Glasbase Asphalt-coated, inorganic fiberglass base sheets

HPR® Glasbase/ Premium

Asphalt-coated, inorganic fiberglass base sheets that meet and exceed the toughest tensile strength tests.

This asphalt-coated base sheet is used as the initial underlayment in high-performance built-up roofing systems. The inorganic base sheets are rot proof and will not wick or absorb moisture, minimizing the risk of ply delamination and creating a stronger, more secure roof assembly.


Product Advantages


Technical Data

HPR Glasbase HPR Premium Glasbase
*Tensile Strength MD 44 lbf./in. (7.7 kN/m)
XD 44 lbf./in. (7.7 kN/m)
MD 100 lbf./in. (17.5 kN/m)
XD 80 lbf./in. (14.0 kN/m)
Width 3 ft. (0.91 m) 3 ft. (0.91 m)
Length 108 ft. (33 m) 72 ft. (22 m)
Weight 75 lbs. (34 kg) 75 lbs. (34 kg)
Nominal Thickness 55 mils (1,397 microns) 55 mils (1,397 microns)
Net Coverage 300 sq. ft. (30 m2) 200 sq. ft. (18.5 m2)

*Test Method ASTM D 5147 is tested at 2 in./min. @ 73.4 ± 3.6°F
(50 mm/min. @ 23 ± 2°C)

Packaging

20 rolls/pallet (HPR Glasbase)
25 rolls/pallet (HPR Premium Glasbase)


Approvals that apply to this product

FM Approved logo Miami-Dade County approved logo Intertek Warnock Hersey logo

Certification/Validation

Currently no certifications

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