The first step with roof installation is to prepare the roof deck by getting rid of all dirt dust and contaminants.
Rigid insulation roof deck.
There are at least two good reasons why this approach makes more sense than installing the insulation under the roof sheathing.
Rigid foam insulation is available in two main types.
Both install in the same manner but the foil faced product offers slightly more r value.
All the insulating firms around here insulate standard homes with wood roofs.
Nailbase must be vented in high snow load areas.
Rigid insulation for roof decks in our area of florida insulation is required in both the exterior walls and roof.
Rigid insulation layers exterior to existing roof sheathing must provide sufficient thermal insulation r value to control condensation risk see climate specific guidance.
Install nailbase for cladding.
This can be done with air pressure vacuuming or even just sweeping.
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.
Polystyrene foam and foil faced polyisocyanurate foam.
They had to look original.
Rigid foam is produced in various size panels 4 ft x 8 ft 4ft x 4ft etc.
During cooler night times and in winter periods the deck temperature can then be below the dew point of the interior air.
Additionally densdeck has been shown to withstand de lamination deterioration warping and jobsite damage more effectively than other roofing membrane substrates such as paper faced gypsum board fiber board and perlite insulation.
After the roof deck is prepared the rigid foam boards need to be cut to size to fit snugly together on your roof.
The trim the frieze boards the fascia and the overhangs all had to look like they belonged.
The unique construction of densdeck provides excellent flute spanning that stiffens and provides increased foot traffic resistance to the roof deck.
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