Rigid Foam Insulation Roof Installation

Rigid foam installation after the roof deck is ready the rigid foam insulation is installed.

Rigid foam insulation roof installation.

Depending on the type of insulation you choose and the desired r value you want for your facility you may need to build up a few layers of insulation. 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.

The r value is a measurement of the heat loss and heat gain. Rigid foam insulation also known as insulating boards provide high r values. Use 2 1 2 inch deck screws to drive the furring strips into the foam and the wood framing beyond. Install nailbase for cladding.

Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. Use a straight edge knife or utility knife to cut the panels to size. Eps is the most vapor permeable of the three types. Install rigid insulation board in multiple layers with joints offset vertically and horizontally between adjacent layers.

You can even place it under the foundation slab. Rigid insulation is one of the best tools to reduce your energy costs. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. 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.

The furring strips should run vertically from floor to ceiling or from eaves to rafters if you are installing them on a sloped ceiling. To install measure the foam insulation panels to the roof s dimensions. 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. 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.

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. Rigid foam offers tremendous boost to a home or office s r value. Nail it around the edges with roofing nails. At r 4 it also has the lowest r value per inch.