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Insulating sheathing is installed on exterior of an existing framed wall with water control between existing sheathing and insulating sheathing
Polyisocyanurate rigid foam insulation is installed in multiple layers with staggered, taped seams over the flat roof
Right - Foil-faced polyisocyanurate insulating rigid foam sheathing is installed below the floor framing of this house built on piers; however, the seams should be sealed with metal taped and the plumbing elevated and protected.
The home is sheathed with rigid foam insulation and all seams and holes are taped to provide a continuous air barrier.
Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and taped top edge of existing house wrap or building paper
Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition