Rigid Insulation Plywood Roof Deck

This type of insulated roof assembly limits thermal bridging through rafters.

Rigid insulation plywood roof deck.

Atlas acfoam nailable products offer osb or cdx plywood adhered to the top face combining all the benefits of a nailable roof substrate with thermally efficient polyiso insulation. The trim the frieze boards the fascia and the overhangs all had to look like they belonged. From the nail base itself to specially engineered fasteners acfoam nailable products are designed to work together for an efficient and fully functional nailable roof system. The 6 inches of rigid insulation added to the top of the existing roof deck needed to be done in a manner that was invisible.

The plywood was fastened through the rigid foam to the rafters with long screws. Install rigid insulation board in multiple layers with joints offset vertically and horizontally between adjacent layers. There s a reason polyiso rigid foam insulation is used in more than 70 of commercial roof construction as well as in many residential builds. After installing several layers of rigid foam above the roof sheathing these workers installed plywood above the rigid foam.

Certainteed flintboard iso nb composite polyisocyanurate osb roof insulation is a rigid board insulation for use with heavyweight shingles standing seam metal tile slate and single ply roofing systems. The illustration shows two layers of osb or plywood roof sheathing. Consult membrane manufacturer for suitability and system requirements. Attach to deck board.

Rigid foam insulation installation prepare roof deck. Install nailbase for cladding. A lower layer conventionally nailed to the rafters and an upper layer installed as a nailing surface for the roofing material on top of the rigid foam. Installed on the roof exterior foam makes the living space below more comfortable and reduces the likelihood of ice dams.

Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. They had to look original. Polyiso is an easy cost effective sustainable and energy efficient construction material. Acfoam nailable polyiso roof insulation.