Foam Board Metal Roof Insulation

I ve written several posts about how to insulation basement walls in which i promote the use of foam board insulation as the first line of defense against moisture and mold.

Foam board metal roof insulation.

Because of this i often get questions about which type of foam board insulation to use and what r values these products provide. Metal roofing attached to battens on eps martin i d like to attach 5v metal roofing to battens laid atop 10 of eps which would be on top of the osb sheathing. R panel is manufactured with a closed cell polyisocyanurate foam core bonded to fiberglass reinforced facers and designed for use over metal nailable and non nailable roof decks with a variety of membrane systems. It s light weight provides ease of handling.

Foam board insulation is easy to use and is a great diy way to add some insulation. 10 tall battens also seems like a bad idea. My concern is for v5 structurally i don t think that i can just lay the battens atop the eps. Foil insulation is a radiant barrier and it works by.

This foam can be used on either the outside or the inside of the sheathing. R 3 2 polyisocyanurate rigid foam insulation board r matte plus 3 thermasheath 3 is rigid foam r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board. Cut each sheet to the desired size using a utility knife then fasten it in place using staples or adhesive. Some foam panel insulation is rigid enough to skip the step of installing a plywood sub roof but these materials are.

Rmax r matte plus 3 1 2 in. This is different from the normal roll up type of insulation as it comes in panels rather than paper covered fiberglass. Avoids nails or screws which could penetrate the metal roof and cause leaks. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency.

It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. Beadboard roofing insulation must be dense enough to walk on. There are three basic foam insulation board products on the. Wall insulation foam boards are much less dense than roof boards so be careful when choosing your product.

Rigid roof insulation board. It s made of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer. Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch. The best material for use with metal roof insulation is in the form of foam batting.

Meps foam board insulation often is called beadboard. Some types of thicker foam board insulation are available but they may need to be special ordered.