Base & Ply Sheets

Modified Bitumen Roof System Accessories

 

Click on a selection below for detailed information on Siplast base and ply sheets for SBS-modified bitumen roof systems.

 

Base & Ply Sheets Product Summary Chart
Product Description Purpose Roll Size Coverage Minimum Coverage Weight
Parabase An asphalt coated fiberglass base sheet or base ply. Designed for use under Siplast systems in certain nailable applications. 3.0 ft (0.91 m) x 108 ft
(32.9 m)
3 sq
(27.9 m2)
20 lb/sq
(0.9 kg/m2)
Parabase FS A non-porous fiberglass base sheet. Designed for use under Siplast systems in certain nailable applications. 3.0 ft (0.91 m) x 108 ft
(32.9 m)
3 sq
(27.9 m2)
20 lb/sq
(0.9 kg/m2)
Parabase Plus A lightly modified asphalt coated fiberglass base sheet or base ply. Designed for use under Siplast systems in certain nailable applications. 3.28 ft (1.00 m) x 102.3 ft
(31.2 m)
3 sq
(27.9 m2)
30 lb/sq
(1.4 kg/m2)
Parabase Plus P A lightly modified asphalt coated fiberglass base sheet or base ply. Designed for use under Siplast systems in certain nailable applications. 3.28 ft (1.00 m) x 102.3 ft
(31.2 m)
3 sq
(27.9 m2)
25.3 lb/sq
(1.2 kg/m2)
SBS Modified

SBS-Modified Bitumen Roof Systems Brochure

Engineered Roofing

Engineered Roofing & Waterproofing Systems

Technical_Guide

Tech Guide

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