Mercy SYNSTEP 100 GSM
Availability in U.S. stockSYNSTEP 100 is an advanced roof underlayment that provides effective air, water, and vapor barrier properties. Underlayment boasts a four-layer design, incorporating a Circular loom woven scrim and a Spunbonded PP non-woven laminate as its top layer. Each layer receives UV protection, and the underside is treated with an elastomer for anti-slip safety.
Product Info Documents
SYNSTEP 100 Manual$0
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SKU: S1mzPHIQiZnY80
Why Contractors Love it
Faster Install
Lightweight rolls are easier to carry and position
Preprinted nailing patterns speed up installation
Clear overlap lines eliminate guesswork
Installer Approved
Superior grip and walkability that crews love
Strong tear resistance
No bunching up underfoot
Faster Install
Cool grey surface keeps workers comfortable
Resists water absorption to prevent wrinkles
Maintains flexibility in cold weather
Professional Performance
Better coverage per course than standard Type 15 felt
6-month UV protection for flexible project timing
Maintains shape without wrinkles or warping
Faster Install
Lightweight rolls are easier to carry and position
Preprinted nailing patterns speed up installation
Clear overlap lines eliminate guesswork
Installer Approved
Superior grip and walkability that crews love
Strong tear resistance
No bunching up underfoot
Faster Install
Cool grey surface keeps workers comfortable
Resists water absorption to prevent wrinkles
Maintains flexibility in cold weather
Professional Performance
Better coverage per course than standard Type 15 felt
6-month UV protection for flexible project timing
Maintains shape without wrinkles or warping