TRI-BUILT® Synthetic Max is a synthetic roof-deck protection designed and manufactured to replace asphalt saturated 30# felt in sloped roof system construction where toughness and longer exposures may be required.

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Main Points 1

• Best substitute for 30# organic felt
• Use under Asphalt Shingles, Stone Coated Metal Shingles, Synthetic Slate, Wood Shakes, Terra Cotta Tile, Concrete Tile, Slate, Sloped Standing Seam Metal Roofing
• 14 mils thick
• 6 month UV exposure
• Rolls out flat and does not wrinkle
• 33% more coverage per pass across the roof (vs. 36” wide rolls)
• Great walkability due to Anti-Slip engineered back
• Designed to perform in virtually all steep slope roof covering systems and in extreme weather conditions
• Water resistive coating which doesn’t absorb water, won’t rot and is inert to mold growth
• Florida Building Code approved FL21553
• Life Time Warranty


Synthetic Max Underlayment