How To Secure R15 Insulation To Roof Deck

Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and.

How to secure r15 insulation to roof deck.

The snugness of the foam itself should be sufficient to hold the strips. Fiberglass insulation hangers for under roof deck david johnson posted in green building techniques on may 14 2012 02 12am i m having trouble finding fasteners for hanging fiberglass insulation from sprayed on polyurethane foam in a conditioned attic conversion application. Foamular xps roof insulation for commercial buildings page 5 foamular xps roof insulation for commercial buildings foamular xps insulation is a rigid foam insulation which meets the needs of today s design professionals for a truly sustainable insulation product. July 2011 fine homebuilding s article about roof venting included a method for insulating cathedral ceilinged roofs with 6 of rigid foam topped with plywood sheathing and conventional shingles.

The ratio of insulation above the roof deck or air permeable insulation below the roof deck is a matter of climate and interior conditions. A recent mckinsey co. Tectum roof deck should be unloaded and stored on the site on a stacking platform. And fiberglass batts strapped to the roof deck are a bad idea 100 of the time.

We ve seen it multiple ways. Insulation must secure properly to the roof deck to provide an acceptable substrate for the roof covering. The platform needs to be covered with a moisture resistant material before the deck is stacked on the platform. Mechanical fastening with self tapping screws and plates is the most common and approved method for insulation attachment on steel and wood roof decks.

Position the foam board between the rafters and push it upward until it fits snugly against the underside of the roof deck. Cover the deck with water shedding material and secure. Insulation above the roof deck or air vapor impermeable insulation below the roof deck is needed for condensation control in an unvented roof. Insert a plate every 2 square feet of insulation board.

Batts secured to the deck with insulation hangers between top chords or more commonly tension cables secured at the ridge and eaves with eye hooks to prevent fall out. Use a drill to drive. Position the fastening plates over the insulation board. If i want to use three 2 sheets of xps covered with plywood how do i attach the foam plywood sandwich to the roof deck.

Insert 3 inch galvanized screws through the fastening plates.