Step 1
Cut the desired length of X-Seal.
Step 2
Place X-Seal into the gap opening—even one with irregular hips and valleys—and remove the protective release paper.
Step 3
X-Seal slowly expand up to 1″ to completely fill and seal the gap.
X-Seal expands from 1/4” to 1” and from 3/8” to 1 1/2”, allowing it to fill any shaped gap in the construction of metal buildings, doors and windows, concrete, wood, and more. It is adaptable to most roof panels, including hips and valleys. Highly resistant to bugs and vermin, X-Seal maintains its seal in heat and cold and will not leach out or stain.

This vent keeps your system performing at its best by promoting efficient airflow to reduce lint buildup and excess heat, helping prevent moisture damage inside the home. Its enclosed design works to keep out insects, critters, and rain, while the removable cap makes cleaning and maintenance simple and fast. With leak-prevention features built into the design, it helps reduce customer call-backs and gives installers a dependable solution they can trust on every shingle roof application.
Description/Base/Color: Pre-compressed, self-expanding PUR foam impregnated with a high-quality modified acrylic, flame retardant emulsion. The base foam is black; other colors available.
Density: 10 lbs./cu ft. (150kg/m3)
Flammability: UL 94 HF1, Self-extinguishing, DIN 4102, B1 compression at 50%, B2 compressed
Temperature Stability Range: -40°F to 212°F
Manufacturer’s Lab: -40°C to 120°C
Weather Resistancy: Excellent
Compression Set: Maximum 2%
Tensile Strength: 21.8 psi
Thermal Conductivity: 12,106 BTU (hr.) (ft2) (*F/ft)
X-Seal comes compressed at just 1/4 inch on an easy-to-handle roll.
Cut the desired length of X-Seal.
Place X-Seal into the gap opening—even one with irregular hips and valleys—and remove the protective release paper.
X-Seal slowly expand up to 1″ to completely fill and seal the gap.
Calculate the exact amount of ventilation needed for a well-balanced system.