04/14/2023
Make Resilient Upgrades | Strengthen Your Home • Hurricanes | Tornadoes
Closed-cell spray polyurethane foam insulation applied to the underside of the roof deck can seal your deck, create a secondary water barrier, strengthen the roof deck connections to increase wind resistance, and improve energy efficiency.
Spray foam adhesive comes in two forms: closed or open cell. While both provide a measure of increased R-value and wall insulation, closed cell provides better heat resistance, second water barrier benefits, and enhanced strengthening properties that reinforce the roof deck attachment.
Identify a licensed, bonded, and insured professional who is certified to install spray foam. Apply a 3” minimum, full insulating layer of closed-cell polyurethane foam adhesive between roof rafters/trusses and on the underside of decking at all points of framing and sheathing intersections.
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