Fixing Rigid Insulation To Roof

After the roof deck is prepared the rigid foam boards need to be cut to size to fit snugly together on.

Fixing rigid insulation to roof.

Rigid foam insulation installation prepare roof deck. Styrofoam extruded polystyrene foam insulation sheathings such as styrofoam cavitymate or styrofoam ultra sl insulation provide a coat of continuous insulation over the stud members when properly installed and are treated with durable joint treatments such as great stuff pro gaps cracks or liquidarmor flashing and sealant as an integrated air and water barrier system. Lstiburek does a great job explaining why rigid foam insulation expands and contracts in his correction to foam shrinks and other lessons. For example the national roofing contractors association nrca recommends using rigid insulation boards that are 2 x4 to reduce stress on roof membranes.

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. It also acts as an adherent to keep your panels in place better. After installing several layers of rigid foam above the roof sheathing these workers installed plywood above the rigid foam. By martin holladay april 3 2015.

Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. Fixing insulation between battens does not form a continuous and airtight insulation layer. Place the new decking board on the roof. This will help even more to avoid the transfer of moisture into the roof.

Senior engineer manager at icynene john broniek makes the case for the unvented attic assembly and why insulating the underside of the roof makes sense. Another thing to consider is to apply a dab of silicone caulking on top of every nail you use to secure the rigid foam insulation panels. Attach to deck board. Fixing flat roof insulation is quick and easy with insofast isf18 fixings.

The fasteners have a twin start spiral shank welded to a button head and are designed to secure plywood topped composite insulation boards to timber roofing rafters. When hammer driven the fastener corkscrews into timber and masonry materials to deliver a mechanical fix that grips both the wood batten on one side of the insulation and the brick wall on the other side. The airtwist fastener is a one piece fixing with a 7mm diameter two start helix. The quest for greater energy efficiency in buildings has led to increasing interest and need for insulation improvements in hvac equipment more airtight construction new materials and assemblies.

Use 1 1 2 inch galvanized decking screws in all four corners on the sides in the middle and along the bottom if you re working near the eaves. These one piece hammer in fixings are part of a range of insulation anchors manufactured by thor helical.