Rigid Foam Insulation Roof Installation

Install rigid insulation board in multiple layers with joints offset vertically and horizontally between adjacent layers.

Rigid foam insulation roof installation.

The furring strips should run vertically from floor to ceiling or from eaves to rafters if you are installing them on a sloped ceiling. The r value is a measurement of the heat loss and heat gain. All three types of rigid foam insulation expanded polystyrene eps extruded polystyrene xps and polyisocyanurate are suitable for use on the exterior of walls and roofs though they do not perform equally. Install nailbase for cladding.

Install 1 by 3 furring strips over the insulation panels on top of each stud. Install it anywhere from the roof to the foundation. They keep your home at a comfortable temperature without the need to crank your heat. Rigid foam insulation also known as insulating boards provide high r values.

You can even place it under the foundation slab. Use 2 1 2 inch deck screws to drive the furring strips into the foam and the wood framing beyond. Start at the bottom of the roof and place the first piece of rigid foam insulation against the metal flashing starting at the center line. A helpful hint for installation is to use a straight edge along the cut line to ensure the panels fit best.

The purpose of the requirement that rigid foam installed above roof sheathing meet certain minimum r values is to ensure that the roof sheathing stays warm enough during the winter to avoid moisture accumulation and possible sheathing rot. Polyurethane spray foam metal roof insulation in order to add moisture barrier under metal roof you can spray the undersides of the roof by using a thick layer of polyurethane spray foam. At r 4 it also has the lowest r value per inch. Use a straight edge knife or utility knife to cut the panels to size.

Rigid foam offers tremendous boost to a home or office s r value. To install measure the foam insulation panels to the roof s dimensions. Nail it around the edges with roofing nails. It will help you to eliminate problems that may come when the house becomes extremely cold in the winter and terribly hot in the summer.

In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. Rigid foam installation after the roof deck is ready the rigid foam insulation is installed. Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. Rigid insulation is one of the best tools to reduce your energy costs.