Rigid Insulation Roof Deck

Both install in the same manner but the foil faced product offers slightly more r value.

Rigid insulation roof deck.

Walls foundations roof and roof decks air distribution ceilings interior solutions mechanical pipe equipment appliances commercial insulation home page product types fiberglas insulation foamglas cellular glass foamular xps thermafiber mineral wool accessories all products. Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance. The unique construction of densdeck provides excellent flute spanning that stiffens and provides increased foot traffic resistance to the roof deck. Nailbase must be vented in high snow load areas.

The 6 inches of rigid insulation added to the top of the existing roof deck needed to be done in a manner that was invisible. During cooler night times and in winter periods the deck temperature can then be below the dew point of the interior air. The trim the frieze boards the fascia and the overhangs all had to look like they belonged. Rigid insulation for roof decks in our area of florida insulation is required in both the exterior walls and roof.

There are lots of different ways to insulate this type of roof but one of the best methods calls for the installation of rigid foam insulation above the roof sheathing. There are at least two good reasons why this approach makes more sense than installing the insulation under the roof sheathing. They had to look original. The roof deck is cold wood decks without insulation above them will readily equilibrate to the exterior temperature.

The first step with roof installation is to prepare the roof deck by getting rid of all dirt dust and contaminants. Rigid foam insulation is available in two main types. Rigid foam is produced in various size panels 4 ft x 8 ft 4ft x 4ft etc. Owens corning foamular xps insulation is a closed cell moisture resistant rigid foam board ideal for many roofi ng applications including single ply protected roof membrane assemblies prma tapered vegetative roofs plaza decks architectural metal roofi ng and recover roofi ng.

Polystyrene foam and foil faced polyisocyanurate foam. After the roof deck is prepared the rigid foam boards need to be cut to size to fit snugly together on your roof. Install nailbase for cladding.