Insulating A Shop Roof

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces.

Insulating a shop roof.

Remember the duct tape will also prevent leaks and enhance the efficiency of the foam insulation. Now cover all the roof of your shed with foam insulation but do not overlap. Place the plastic sheeting on top of the rolled insulation. Common types are radiant barriers insulation blankets batts blown insulation and rigid boards.

For rolled insulation place it between roof rafters. Insulation built into the product with a thermal insulation value of 24. Use duct tape to cover the edges of the foam insulation so that you will greater protection against moisture. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away.

If your budget allows we recommend combining one of the other insulation materials with some type of radiant barrier bubble insulation. Then feed the rolled insulation under wires and pipe if either is present. The most energy efficient roofing product in the market. Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value.

Rigid foam boards come in different material compositions varying thicknesses and different insulating r value properties. Each layer is composed of polyethylene bubbles that function as an additional thermal barrier that helps stop condensation. Insulating a new metal roof step 1 install plywood or oriented strand board osb to act as structural roof sheathing. For the same reason insulation shouldn t touch the roof s underside.

Lay the plywood perpendicular to the roof joists and fasten it in place using galvanized or stainless steel roofing nails. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. If you have the money professionally sprayed on foam insulation is the absolute best option but is very expensive. Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss.