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Mushroom-shaped rooftop exhaust fans provide powered central exhaust ventilation for this high-rise commercial building

Mushroom-shaped rooftop exhaust fans provide powered central exhaust ventilation for this high-rise commercial building
Case Study:

New Whole-House Solutions Case Study: New Traditions Homes, Landover Commons, Vancouver, WA

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Opening the outlet on a bath fan reveals model information and provides access to the motor

Opening the outlet on a bath fan reveals model information and provides access to the motor
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Override control switches centrally located near thermostat for ease of access

Override control switches centrally located near thermostat for ease of access
Video:

Passive House Underslab Foam & Vapor Barrier: Karuna Video #6

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Patio slabs, porch slabs, walks, and driveways sloped ≥ 0.25 in. per ft. away from home to edge of surface, or 10 ft., whichever is less

Patio slabs, porch slabs, walks, and driveways sloped ≥ 0.25 in. per ft. away from home to edge of surface, or 10 ft., whichever is less
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Pest protection measures include a termite shield under the rim joist and extending out on either side of the stem wall, insect screening under the furring air gap, and brick veneer to protect slab-edge insulation.

Pest protection measures include a termite shield under the rim joist and extending out on either side of the stem wall, insect screening under the furring air gap, and brick veneer to protect slab-edge insulation.
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PEX piping is laid over 2 inches of XPS before the slab is poured to create a radiant floor heating system in this extensive home remodel.

PEX piping is laid over 2 inches of XPS before the slab is poured to create a radiant floor heating system in this extensive home remodel.
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PEX piping loops are laid before the slab is poured for this radiant floor heating system

PEX piping loops are laid before the slab is poured for this radiant floor heating system
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Pinch the spring-loaded mounting wires on either side of the fan to release them and remove the cover from the exhaust fan

Pinch the spring-loaded mounting wires on either side of the fan to release them and remove the cover from the exhaust fan
CAD File:

Polyethylene Over Aggregate

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Polyethylene Over Aggregate
CAD File:

Polyethylene sheeting covers the aggregate and extends down and under the footing to provide a capillary break between the ground and the slab and monolithic footing

Preview Image
Polyethylene sheeting covers the aggregate and extends down and under the footing to provide a capillary break between the ground and the slab and monolithic footing
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Polyethylene sheeting or rigid insulation over aggregate

Polyethylene sheeting or rigid insulation over aggregate
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Polyethylene sheeting or rigid insulation over geotextile matting

Polyethylene sheeting or rigid insulation over geotextile matting
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Poor drainage conditions can enable water to pool around the home.

Poor drainage conditions can enable water to pool around the home.
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Post-tensioned slab-on-grade with exterior and slab insulation

Post-tensioned slab-on-grade with exterior and slab insulation
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Pouring the slab

Pouring the slab
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Press in on the sides of the plastic light cover to remove the light cover from the bathroom exhaust fan for cleaning

Press in on the sides of the plastic light cover to remove the light cover from the bathroom exhaust fan for cleaning
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Proper sizing for kitchen exhaust fan

Proper sizing for kitchen exhaust fan
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Properly installed ERV/HRV

Properly installed ERV/HRV
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Properly installed ERV/HRV

Properly installed ERV/HRV
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Properly installed rigid insulation

Properly installed rigid insulation
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Properly installed vapor barrier

Properly installed vapor barrier
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PSC Motor

PSC Motor