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Video:

Pumpkin Ridge Passive House video #006: Insulation Details

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R-5 XPS rigid foam exterior sheathing provides an air seal, moisture barrier, and additional insulation value.

R-5 XPS rigid foam exterior sheathing provides an air seal, moisture barrier, and additional insulation value.
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Resilient Home Solutions

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Retrofit an existing roof by installing rigid foam, new moisture and air control layers, new sheathing, and new cladding plus cavity insulation in the roof rafters to create an unvented attic

Retrofit an existing roof by installing rigid foam, new moisture and air control layers, new sheathing, and new cladding plus cavity insulation in the roof rafters to create an unvented attic
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Right - A continuous load path connects the roof and wall framing to the foundation.

Right - A continuous load path connects the roof and wall framing to the foundation.
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Right - Assembly corner is air sealed with flashing tape.

Right - Assembly corner is air sealed with flashing tape.
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Right - Braced wall line spacing is correctly calculated for determining wall bracing in accordance with the IRC.

Right - Braced wall line spacing is correctly calculated for determining wall bracing in accordance with the IRC.
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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.

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.
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Right - Foil-faced polyisocyanurate rigid foam is attached to the existing exterior wall with vertical wood furring strips

Right - Foil-faced polyisocyanurate rigid foam is attached to the existing exterior wall with vertical wood furring strips
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Right - Here, air control is established by taping the seams of the plywood panel sheathing. The roof sheathing is also trimmed flush with the wall sheathing to allow a simple and airtight connection between the roof and wall assemblies

Right - Here, air control is established by taping the seams of the plywood panel sheathing. The roof sheathing is also trimmed flush with the wall sheathing to allow a simple and airtight connection between the roof and wall assemblies
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Right - Mastic is being installed to air seal the wood-to-wood joints in this wall.

Right - Mastic is being installed to air seal the wood-to-wood joints in this wall.
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Right - Mold- and water-resistant fiber glass insulating sheathing is installed after panelized walls are assembled on site.

Right - Mold- and water-resistant fiber glass insulating sheathing is installed after panelized walls are assembled on site.
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Right - Open-web floor and ceiling trusses provide space for ducts in conditioned space.

Right - Open-web floor and ceiling trusses provide space for ducts in conditioned space.
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Right - Raised-heel trusses increase the roof height above the eaves allowing more space for insulation above exterior wall top plates; exterior wall sheathing extends up to keep wind from soffit vents from disrupting insulation.

Right - Raised-heel trusses increase the roof height above the eaves allowing more space for insulation above exterior wall top plates; exterior wall sheathing extends up to keep wind from soffit vents from disrupting insulation.
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Right - Seam-sealing flashing tape is installed with roller to fully adhere to the OSB.

Right - Seam-sealing flashing tape is installed with roller to fully adhere to the OSB.
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Right - Seams in coated sheathing and joints around window are properly sealed and flashed with tape and all nail holes are covered with paint-on sealant.

Right - Seams in coated sheathing and joints around window are properly sealed and flashed with tape and all nail holes are covered with paint-on sealant.
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Right - The air control membrane installed over the roof sheathing is continuous. It connects to the air control of the wall around the entire perimeter without interruption. The roof overhangs have been cut off to make this connection continuous

Right - The air control membrane installed over the roof sheathing is continuous. It connects to the air control of the wall around the entire perimeter without interruption. The roof overhangs have been cut off to make this connection continuous
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Right - The seams in the OSB sheathing are sealed with a sprayer-applied sealant.

Right - The seams in the OSB sheathing are sealed with a sprayer-applied sealant.
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Right - These roof insulation panels are installed in multiple layers with joints offset both vertically and horizontally. The plywood nail base fastened to the roof framing holds the insulation layers together snuggly thus minimizing gaps

Right - These roof insulation panels are installed in multiple layers with joints offset both vertically and horizontally. The plywood nail base fastened to the roof framing holds the insulation layers together snuggly thus minimizing gaps
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Right - This foil-faced polyisocyanurate rigid foam is installed on an existing exterior wall and the seams are taped so the rigid foam can serve as a water control layer

Right - This foil-faced polyisocyanurate rigid foam is installed on an existing exterior wall and the seams are taped so the rigid foam can serve as a water control layer
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Right - Wood board sheathing seams are being sealed with low-expanding spray foam.

Right - Wood board sheathing seams are being sealed with low-expanding spray foam.
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Right – A flexible tape is used to air-seal around wiring holes in the coated sheathing.

Right – A flexible tape is used to air-seal around wiring holes in the coated sheathing.
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Right – A rigid corrugated rain screen product is installed shingle-fashion with overlapping edges behind rock veneer.

Right – A rigid corrugated rain screen product is installed shingle-fashion with overlapping edges behind rock veneer.
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Right – A rigid rain screen product completely covers the wall behind the cladding and window framing.

Right – A rigid rain screen product completely covers the wall behind the cladding and window framing.