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Sheathing is removed from a flat roof to retrofit with air sealing, insulation, and water control layers

Sheathing is removed from a flat roof to retrofit with air sealing, insulation, and water control layers
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Sleepers (tapered wood furring strips) are installed over the existing board sheathing to slope the new sheathing toward the drain in this flat roof retrofit

Sleepers (tapered wood furring strips) are installed over the existing board sheathing to slope the new sheathing toward the drain in this flat roof retrofit
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Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.

Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.
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Sloped roof with cavity spray foam insulation, strapping, and gypsum board thermal barrier

Sloped roof with cavity spray foam insulation, strapping, and gypsum board thermal barrier
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Spray foam adhesive provides an extra water resistant layer to the joints and seams on the inside of attics.

Spray foam adhesive provides an extra water resistant layer to the joints and seams on the inside of attics.
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Spray foam insulates and air seals the exterior wall behind the fireplace.

Spray foam insulates and air seals the exterior wall behind the fireplace.
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Staggering sheathing seams makes it harder for moisture to infiltrate the wall to the air gap, where furring strips will allow permeating moisture to drain if needed.

Staggering sheathing seams makes it harder for moisture to infiltrate the wall to the air gap, where furring strips will allow permeating moisture to drain if needed.
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Step 1. Remove the existing wall cladding to prepare to retrofit an exterior wall.

Step 1. Remove the existing wall cladding to prepare to retrofit an exterior wall.
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Step 2. Install a continuous air and water control layer over the existing wall sheathing.

Step 2. Install a continuous air and water control layer over the existing wall sheathing.
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Step 4. Install insulating sheathing and vertical furring strips on the retrofitted exterior wall; seal around pipe or duct with urethane sealant.

Step 4. Install insulating sheathing and vertical furring strips on the retrofitted exterior wall; seal around pipe or duct with urethane sealant.
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Step 5. Install sheathing tape flashing over the duct or pipe and wood blocking on either side for later attachment of trim.

Step 5. Install sheathing tape flashing over the duct or pipe and wood blocking on either side for later attachment of trim.
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Step 6. Install vent hood trim block, metal cap flashing; seal top edge of flashing with sheathing tape.

Step 6. Install vent hood trim block, metal cap flashing; seal top edge of flashing with sheathing tape.
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Step 7. Install a vent hood on the pipe to keep out rain.

Step 7. Install a vent hood on the pipe to keep out rain.
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Step 8. Attach the new cladding to the furring strips over the rigid foam for the exterior wall retrofit.

Step 8. Attach the new cladding to the furring strips over the rigid foam for the exterior wall retrofit.
Video:

Stormproof Your Roof

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Strengthen an existing roof by applying two-part spray-applied polyurethane foam adhesive to all sheathing and framing joints from the underside of the roof

Strengthen an existing roof by applying two-part spray-applied polyurethane foam adhesive to all sheathing and framing joints from the underside of the roof
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Stucco is installed over rigid insulation, which is installed over a drainage plane consisting of a drainage gap and building wrap layer over the sheathing

Stucco is installed over rigid insulation, which is installed over a drainage plane consisting of a drainage gap and building wrap layer over the sheathing
Case Study:

Stud Walls With Continuous Exterior Insulation for Factory Built Housing

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Taped seams on the coated roof sheathing improve this home’s resistance to damage from high winds.

Taped seams on the coated roof sheathing improve this home’s resistance to damage from high winds.
Case Study:

Technology Solutions Case Study: BA-1312: Application of Spray Foam Insulation Under Plywood and OSB Roof Sheathing

Case Study:

Technology Solutions Case Study: Cladding Attachment Over Thick Exterior Insulating Sheathing

Case Study:

Technology Solutions Case Study: Moisture Durability of Vapor Permeable Insulating Sheathing

Case Study:

Technology Solutions Case Study: Preventing Thermal Bypass

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The builder installed 1.5 inches of soy-based spray foam on the outside of the walls over the OSB sheathing, then kept a ¾ inch gap between the foam and the brick veneer siding to allow moisture vapor from the bricks to dissipate.

The builder installed 1.5 inches of soy-based spray foam on the outside of the walls over the OSB sheathing, then kept a ¾ inch gap between the foam and the brick veneer siding to allow moisture vapor from the bricks to dissipate.