Rigid Roof Insulation Panels

How to retrofit a roof to a high performance roof with insulating sheathing above the roof deck plus cavity insulation in roof framing remove existing roofing and non adhered roof underlayment.

Rigid roof insulation panels.

Polyiso is an easy cost effective sustainable and energy efficient construction material. There s a reason polyiso rigid foam insulation is used in more than 70 of commercial roof construction as well as in many residential builds. The most versatile of the three rigid insulation options used in roof wall floor below grade structural geofoam applications used most widely in insulated concrete forms and structural insulated panels highest average r value per dollar about 4 6 r per inch costs the least while meeting or exceeding all required building. Keep in mind that any interior rigid insulating panel must be covered by a barrier.

Eps is by far the most versatile of the three rigid insulation options. Insulated roof assemblies can be vented or unvented. R tech rigid foam insulation. Insulated foam sheets are also used as an insulated sheathing underlayment for exterior siding.

There are lots of different ways to insulate this. R tech panels are an engineered rigid insulation consisting of a superior closed cell lightweight and resilient expanded polystyrene eps with advanced polymeric laminate facers. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. Eps is also the most inexpensive of the three types of rigid foam insulation while also meeting the required building and energy codes.

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. Follow with a 2x4 frame wall and insulate it with batt insulation. However most cathedral ceilings and low slope flat roofs are insulated roof assemblies. R tech is available with factory adhered metallic reflective facers white facers or a combination of the two.

The panels provide a continuous energy efficient surface. Apply a continuous air control membrane to existing roof sheathing or tape all joints between roof sheathing panels with an acrylic or butyl adhesive. It can be applied on the roof floor and walls and it s most widely used in structural insulated panels and insulated concrete forms.