Photo of StressBase 80 being installed on roof

Base and Ply Sheets

StressBase® 80 Plus

Advanced Rubber Technology
Security in Multi-Ply Construction

StressBase 80 Plus is a high-strength puncture and fatigue-resistant, modified roofing membrane that consists of fiberglass reinforcement sandwiched by Styrene-Butadiene-Styrene (SBS) rubber in a high penetration index asphalt mixture. StressBase 80 Plus sheets can be used as a nailable base sheet over approved substrates, as a base flashing for hot- and cold-applied roof systems, or as an interply in Garland's hot or cold-applied systems. StressBase 80 Plus is typically used in two (2) or three (3) ply modified systems and also can be used in three (3) or four (4) ply BUR's.

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Product Specifications

Method	Description
Hot-Applied	Garland's StressBase 80 Plus sheets can be used in conjunction with Weatherking® and Green-Lock® to make up a cold-applied system. StressBase® 80 Plus sheets can also be used with hot asphalt or Garlastic® as a multi-ply BUR, as the underlayment for Garland's HPR® roof systems or as a base flashing ply for hot-and-cold applied roof systems. Specifications for nailing to various decks are also available. NOTE: All rolls must be cut in 18 ft. (5.5m) lengths and allowed to relax prior to application.
Cold-Applied	Garland’s StressBase 80 Plus sheets can be used in conjunction with Weatherking® and Green-Lock® to make up a cold-applied system. StressBase® 80 Plus sheets can also be used with hot asphalt or Garlastic® as a multi-ply BUR, as the underlayment for Garland’s HPR® roof systems or as a base flashing ply for hot-and-cold applied roof systems. Specifications for nailing to various decks are also available. NOTE: All rolls must be cut in 18 ft. (5.5 m) lengths and allowed to relax prior to application

Method

Description

Hot-Applied

Garland's StressBase 80 Plus sheets can be used in conjunction with Weatherking® and Green-Lock® to make up a cold-applied system. StressBase® 80 Plus sheets can also be used with hot asphalt or Garlastic® as a multi-ply BUR, as the underlayment for Garland's HPR® roof systems or as a base flashing ply for hot-and-cold applied roof systems. Specifications for nailing to various decks are also available. NOTE: All rolls must be cut in 18 ft. (5.5m) lengths and allowed to relax prior to application.

Cold-Applied

Garland’s StressBase 80 Plus sheets can be used in conjunction with Weatherking® and Green-Lock® to make up a cold-applied system. StressBase® 80 Plus sheets can also be used with hot asphalt or Garlastic® as a multi-ply BUR, as the underlayment for Garland’s HPR® roof systems or as a base flashing ply for hot-and-cold applied roof systems. Specifications for nailing to various decks are also available. NOTE: All rolls must be cut in 18 ft. (5.5 m) lengths and allowed to relax prior to application

Physical Property	Value
Tensile Strength	MD 140 lbf./in. (24.5 kN/m) XD 100 lbf./in. (17.5 kN/m)
Tear Strength	MD 130 lbf. (578 N) XD 100 lbf. (444 N)
Elongation	MD 4% XD 4%
Low-Temp Flex	passes -40°F (-40°C)

Type	Link
Data Sheets	StressBase 80 Plus Technical Data Sheet

Features

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Security in Multi-Ply Construction

StressBase 80 Plus sheets are the base component of a multi-ply roof system. They combine the inherent advantages and proven performance of multi-ply protection with the strength, flexibility, and elongation of elastomeric systems. This unique combination minimizes dependence on perfect workmanship, contact adhesive seaming, etc.

Advanced Rubber Technology

The modifier utilized is SBS (Styrene-Butadiene-Styrene). When the SBS rubber is properly dispersed throughout the high-penetration asphalt, the rubber provides increased thermal shock resistance, UV protection, heat resistance, elongation, and low-temperature flexibility. A special high-shear mixer is used in manufacturing to ensure proper dispersion.

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Base and Ply Sheets

StressBase® 80 Plus

Product Specifications

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Features

Security in Multi-Ply Construction

Advanced Rubber Technology

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