Skip to main content

Resources

Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos, drawings, videos, CAD files, case studies, and presentations.

Filter

View Library

Showing 601 - 624 of 766 results:

Image:

The asymmetrical design of this home offers a large uninterrupted south-facing roof plane for solar photovoltaic and solar thermal panels.

The asymmetrical design of this home offers a large uninterrupted south-facing roof plane for solar photovoltaic and solar thermal panels.
Image:

The attic is sealed and insulated along the underside of the roof deck with 5.5 inches of polyurethane spray foam, providing conditioned space for the HVAC system.

The attic is sealed and insulated along the underside of the roof deck with 5.5 inches of polyurethane spray foam, providing conditioned space for the HVAC system.
Image:

The base of the plywood parapet is air sealed with spray foam and fibrous insulation is installed in the rafter cavities in this flat roof retrofit

The base of the plywood parapet is air sealed with spray foam and fibrous insulation is installed in the rafter cavities in this flat roof retrofit
Image:

The blocking for a new PV roof-mounting system is integrated with new rigid foam and the air and water control layers installed over an existing flat roof

The blocking for a new PV roof-mounting system is integrated with new rigid foam and the air and water control layers installed over an existing flat roof
Image:

The blocking is completely flashed with roofing membrane before the PV rack hardware is attached on a flat roof

The blocking is completely flashed with roofing membrane before the PV rack hardware is attached on a flat roof
Image:

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.
Image:

The components of a roof include the rafter framing or trusses, purlins, plywood roof decking, underlayment, and the roof covering.

The components of a roof include the rafter framing or trusses, purlins, plywood roof decking, underlayment, and the roof covering.
Image:

The cool shingles on the right have been coated with a ceramic coating to reflect near-infrared radiation, resulting in a cooler roof as shown by these thermal images (red and yellow are hotter, green and blue are cooler).

The cool shingles on the right have been coated with a ceramic coating to reflect near infrared radiation, resulting in a cooler roof as shown by these thermal images (red and yellow are hotter, green and blue are cooler).
Image:

The dark horizontal lines indicated by blue circles on this roof are actually low-profile roof vents that take the place of soffit vents and are installed above the insulation level so no baffles are needed

The dark horizontal lines indicated by blue circles on this roof are actually low-profile roof vents that take the place of soffit vents and are installed above the insulation level so no baffles are needed
Image:

The diverter should be adequately sized to direct all of the water away from the wall and into the gutter.

The diverter should be adequately sized to direct all of the water away from the wall and into the gutter.
Image:

The duct for this exhaust fan is properly routed through the roof and the duct is insulated

The duct for this exhaust fan is properly routed through the roof and the duct is insulated
Image:

The entire roof of the home is covered with an ice-and-water shield to help protect against moisture damage.

The entire roof of the home is covered with an ice-and-water shield to help protect against moisture damage.
Image:

The existing 2x8 roof rafters were topped with OSB; two layers of 2-inch rigid foam; plywood; ice and water shield at rakes, eaves, and valleys; underlayment; and fiberglass shingles, plus 6 inches of open-cell foam under the decking.

The existing 2x8 roof rafters were topped with OSB; two layers of 2-inch rigid foam; plywood; ice and water shield at rakes, eaves, and valleys; underlayment; and fiberglass shingles, plus 6 inches of open-cell foam under the decking.
Image:

The existing dark tile roof on this home (top photo) was covered with a light -colored coating on day 6 (middle photo), resulting in a significant reduction in attic temperature and cooling energy consumption (bottom)

The existing dark tile roof on this home (top photo) was covered with a light -colored coating on day 6 (middle photo), resulting in a significant reduction in attic temperature and cooling energy consumption (bottom)
Image:

The existing flat roof before removal of membrane shows lack of slope allowing water to pool on the surface

The existing flat roof before removal of membrane shows lack of slope allowing water to pool on the surface
Image:

The existing sheathing boards are removed near the perimeter of the flat roof and pressure-treated plywood is installed at the vertical face of the parapet

The existing sheathing boards are removed near the perimeter of the flat roof and pressure-treated plywood is installed at the vertical face of the parapet
Image:

The geometry of this roof encouraged drifting of snow leading to heavy accumulation between the gables

The geometry of this roof encouraged drifting of snow leading to heavy accumulation between the gables
Image:

The green framing is lumber that was pressure treated with borate to increase its resistance to termites, mold, and moisture

The green framing is lumber that was pressure treated with borate to increase its resistance to termites, mold, and moisture
Image:

The icicles and the bare spot along the left roof ridge indicate that heat from the second-story room may be heating the underside of the roof deck, melting the snow and likely leading to ice dam formation.

The icicles and the bare spot along the left roof ridge indicate that heat from the second-story room may be heating the underside of the roof deck, melting the snow and likely leading to ice dam formation.
Video:

The Importance of a Continuous Load Path

Image:

The location of furnace and water heater flues can be identified by going outside and looking for metal pipes coming through the roof.

The location of furnace and water heater flues can be identified by going outside and looking for metal pipes coming through the roof.
Image:

The mechanical curb for a skylight is integrated with the water management and air control layers on a flat roof retrofitted to include new above-deck rigid foam insulation

The mechanical curb for a skylight is integrated with the water management and air control layers on a flat roof retrofitted to include new above-deck rigid foam insulation
Image:

The metal flashing used at this wall-to-roof transition is incorrectly layered over, not under, the siding, and is nailed into the siding, creating holes where water can infiltrate the wall.

The metal flashing used at this wall-to-roof transition is incorrectly layered over, not under, the siding, and is nailed into the siding, creating holes where water can infiltrate the wall
Image:

The open-web roof and floor joists, laminated beams, and I-beams reduce raw lumber use and increase load-bearing capacity, while resisting shrinking, twisting, splitting, and warping.

The open-web roof and floor joists, laminated beams, and I-beams reduce raw lumber use and increase load-bearing capacity, while resisting shrinking, twisting, splitting, and warping.