Exterior Roof Insulation Under Shingles

Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house.

Exterior roof insulation under shingles.

Foam is also a suitable material for use under roofing shingles. Metal roof insulation addresses two major goals. The three layers of rigid insulation have yet to be. Currently there is no insulation anywhere and the third floor basically an enclosed attic gets crushed by heat in the summer.

Stabilizing the interior temperature and help to prevent material from collecting under the roofing material. You need roofing sheathing plywood or osb to nail the. There are many kinds of foam insulation. Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow.

Nail it around the edges with roofing nails. She wants to put on new shingles and questions having them right over the foam you are right to question that application. Start at the bottom of the roof and place the first piece of rigid foam insulation against the metal flashing starting at the center line. I live in charleston sc in an old 1858 3 story wooden house.

Plan to replace asphalt shingle roof with standing seam metal. Roof to wall air seal note the connection of the new roof deck membrane overlapping the trimmed back original gable overhang and catching the white housewrap water control layer and air control layer behind the wall exterior insulation the blue layer of foam. Yes providing a layer of insulation under a metal roof is imperative because metal is naturally a better heat conductor than wood. The first problem is that shingling nails that have to go through an inch of foam will not hold the shingles well against high winds.

Some foam insulation are quite rigid and they are cut to size and placed under the roof. Rigid insulation under a cool roof in zone 3.