Rigid Roof Insulation Panels

Eps is by far the most versatile of the three rigid insulation options.

Rigid roof insulation panels. Polyiso is an easy cost effective sustainable and energy efficient construction material. A roof over a vented unconditioned attic does not need to include any insulation. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. 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.

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. Insulated foam sheets are also used as an insulated sheathing underlayment for exterior siding. The panels provide a continuous energy efficient surface. 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. R tech rigid foam insulation. There are lots of different ways to insulate this. Keep in mind that any interior rigid insulating panel must be covered by a barrier.

Follow with a 2x4 frame wall and insulate it with batt insulation. Apply a continuous air control membrane to existing roof sheathing or tape all joints between roof sheathing panels with an acrylic or butyl adhesive. A common choice is drywall. It can be applied on the roof floor and walls and it s most widely used in structural insulated panels and insulated concrete forms.

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. Insulated roof assemblies can be vented or unvented. With this kind of roof the insulation follows the slope of the roof.