Exterior Rigid Foam Roof Insulation

The glass fiber reinforcement contributes to improved fire performance and dimensional stability.

Exterior rigid foam roof insulation.

R 5 scored square edge rigid foam board insulation sheathing model 20we view the owens corning exterior insulation 18 98 18 98. Fiberglass insulated walls opened up in the middle of the winter are often covered in a thin layer of frost on the interior side of the wall sheathing. Continuous rigid insulation is a construction solution that provides a thermally efficient building enclosure. Set your store to see local availability add to cart.

One way to limit this is to keep the sheathing warm by adding a layer of rigid foam insulation. Buy 48 or more 15 18. Products provide superior insulating properties. Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck.

Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. Foamular extruded polystyrene xps rigid foam insulation offers foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products choose the strength you need from 15 to 60 psi and exceptional moisture resistance. When to use foam board insulation. This article explains what rigid foam is and the benefits it offers.

Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4 8 or 4. An exterior foundation inside a basement against the foundation and on the outside of a house beneath a house wrap. Foam board insulation is more expensive than. Not only does it provide high r values but foam board insulation is also easy to install lightweight and can be used in any room of your home.

Rigid foam sheathing is a form of insulation continuous insulation to be exact that s applied to the exterior of the building. Install nailbase for cladding. Thermax sheathing is a non structural rigid board insulation consisting of a glass fiber infused polyisocyanurate foam core laminated between 1 0 mil smooth reflective aluminum facers on both sides. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions.

Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. Inviting exterior air into the center of your roof assembly between two layers of insulation has the effect of making your rigid foam worthless if you go this route you ll have to spend a lot of time conscientiously sealing up the air intake openings and air outlets for each ventilation channel whether at the soffit vents or at the.