Roof & Wall Juncture Sealing: Stop Parapet Air Leaks & Flute Infiltration

The intersection where a commercial flat roof deck joins the exterior wall—commonly at parapet walls, metal flutes, and perimeter expansion joints—is the primary failure point for building envelope air tightness. High wind pressures force conditioned air out through unsealed metal flutes, pulling in rain, wind-driven moisture, and exterior contaminants. Applying Tiger Foam™ closed-cell spray foam along roof-to-wall transitions forms a permanent, monolithic air and water seal that passes strict commercial blower door testing.

Key Application Benefits

• Fills Corrugated Metal Deck Flutes: Effortlessly expands into open flutes beneath perimeter parapets, eliminating the open chimneys that defeat commercial air barriers.
• Flexibility & Structural Adhesion: Bonds tenaciously to dissimilar building materials—including structural steel, masonry, gypsum coreboard, and wood nailers—without shifting or separating.
• Passes Commercial Air Barrier Testing: Meets strict ASTM air-leakage requirements (<0.004 cfm/ft²), ensuring compliance with international energy conservation codes (IECC).
• Prevents Wind-Driven Water Entry: Creates an impervious secondary defense line behind commercial parapet flashing and coping caps against gale-force rain infiltration.