Rigid Insulation Roof Detail

Wall flashing with coated metal edge.

Rigid insulation roof detail.

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. Roof area divider curb type. Lightning protection terminal roof mount detail. You will need to hire some well trained roofing insulation experts to make a more energy efficient home.

Install roofing underlayment flashing and cladding as per best practices. Install nailbase for cladding. Code specifies the minimum r value of the rigid foam layer. Eps is the most vapor permeable of the three types.

All atlas acfoam polyiso insulation boards are qualitymark certified providing consumers an easy way to identify premium products that meet or exceed building codes for the best in roof performance. By including a layer of stone wool insulation within your roof system your building will benefit in more ways than one. 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. Or you may also consider metal roofing over rigid insulation details even though it might be a bit pricier.

Wall base termination detail. Introducing a stone wool roofing insulation and coverboard in one. Foamular xps roof insulation for commercial buildings page 5 foamular xps roof insulation for commercial buildings foamular xps insulation is a rigid foam insulation which meets the needs of today s design professionals for a truly sustainable insulation product. The easiest way to increase the value of your roof assembly is to insulate the insulation with a hybrid roof system.

Rigid foam also can be installed above the roof sheathing in tandem with air permeable insulation between the rafters. Although the r value isn t huge the rigid foam insulation boards do a nice job of keeping the searing heat of the roof from making its way into the sanctified space of the man cave. In this case the rigid foam can be thinner than when it s used alone. Wall with self terminating parapro paraflex 531 liquid flashing.

At r 4 it also has the lowest r value per inch. Polyiso is an easy cost effective sustainable and energy efficient construction material. Paraguard expansion joint roof to wall with parasolo flashing. Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance.

Nailbase must be vented in high snow load areas. 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. Between the flat roof insulation and our install of reach radiant barrier insulation on our garage door the shop is now downright comfortable even in the warmer months.