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Scrape the debris from the sides of each fan blade on this bathroom exhaust fan.

Scrape the debris from the sides of each fan blade on this bathroom exhaust fan.
Video:

Sewer Backflow and Pumps

Case Study:

Show Home Targets Energy Efficiency in Hot-Humid Climates

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Side and plan views of window-to-wall interface in masonry wall retrofit including three layers of rigid foam exterior insulation, box extensions, and flashing around new windows.

Side and plan views of window-to-wall interface in masonry wall retrofit including three layers of rigid foam exterior insulation, box extensions, and flashing around new windows.
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Signage can help drivers locate EV charging spaces.

Signage can help drivers locate EV charging spaces.
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Slab independent of foundation wall

Slab independent of foundation wall
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Slab-on-grade foundation and safe room.

Slab-on-grade foundation and safe room.
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Slab-on-grade radon control techniques

Slab-on-grade radon control techniques
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Slab-on-grade with concrete masonry stem wall and exterior insulation

Slab-on-grade with concrete masonry stem wall and exterior insulation
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Slab-on-grade with concrete stem wall and slab insulation

Slab-on-grade with concrete stem wall and slab insulation
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Slab-on-grade with concrete stem wall and under slab insulation

Slab-on-grade with concrete stem wall and under slab insulation
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Slab-on-grade with integral grade beam and exterior and slab insulation

Slab-on-grade with integral grade beam and exterior and slab insulation
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Slab-on-grade with integral grade beam with exterior insulation

Slab-on-grade with integral grade beam with exterior insulation
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Slab-on-grade with masonry stem wall and interior and slab insulation

Slab-on-grade with masonry stem wall and interior and slab insulation
CAD File:

Soffit retrofit to add structural support for vent covering.

Preview Image
Soffit retrofit to add structural support for vent covering.
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Some L2 EV chargers are dual-port, allowing two EVs to be charged from one EV charger.

Some L2 EV chargers are dual-port, allowing two EVs to be charged from one EV charger.
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Spray foam extends down the foundation wall to the slab, which has been retrofitted by adding dimple plastic drainage mat and rigid foam insulation.

Spray foam extends down the foundation wall to the slab, which has been retrofitted by adding dimple plastic drainage mat and rigid foam insulation.
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Spray foam extends down the inside of the foundation wall to the uninsulated slab; because the wall lacked exterior perimeter drainage, the slab was cut and an interior footing drain was installed.

Spray foam extends down the inside of the foundation wall to the uninsulated slab; because the wall lacked exterior perimeter drainage, the slab was cut and an interior footing drain was installed.
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Spray foam insulation extends down the foundation wall to the slab, which has been retrofitted by cutting the slab to install drainage mat against the wall and a new perimeter footing drain, along with rigid foam plastic above the slab.

Spray foam insulation extends down the foundation wall to the slab, which has been retrofitted by cutting the slab to install drainage mat against the wall and a new perimeter footing drain, along with rigid foam plastic above the slab.
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Steel angles for supporting brick veneer are offset from the concrete floor slabs of a multistory building with bracket supports to reduce thermal bridging and provide space to install insulation between the steel angles and the slab edges

Steel angles for supporting brick veneer are offset from the concrete floor slabs of a multistory building with bracket supports to reduce thermal bridging and provide space to install insulation between the steel angles and the slab edges
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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 3. Apply urethane sealant around the duct or pipe in the retrofitted exterior wall.

Step 3. Apply urethane sealant around the duct or pipe in the retrofitted exterior wall.
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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.