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Use the brush attachment on your vacuum to remove dust and debris on the bathroom exhaust fan vents

Use the brush attachment on your vacuum to remove dust and debris on the bathroom exhaust fan vents
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Use this simple calculation to size overhangs above south facing windows.

Use this simple calculation to size overhangs above south facing windows.
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Vented crawlspace cripple wall has seismic retrofits – plywood is added on interior that fastens to extra blocking added at sill plate and connected to foundation with new anchor bolts

Vented crawlspace cripple wall has seismic retrofits – plywood is added on interior that fastens to extra blocking added at sill plate and connected to foundation with new anchor bolts
Case Study:

Veridian Homes: Cold Climate Region 40+% Energy Savings

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Vines growing on vertical trellises, along with tall shrubs, provide very effective shade for the east side of this house.

Vines growing on vertical trellises, along with tall shrubs, provide very effective shade for the east side of this house.
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Water intrusion

Water intrusion
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When preserving a tree, construct a temporary fence around the tree canopy and post signs to keep out vehicles that might compact soil and construction waste that could contaminate the soil.

When preserving a tree, construct a temporary fence around the tree canopy and post signs to keep out vehicles that might compact soil and construction waste that could contaminate the soil.
Video:

Wildfire Embers, Defensible Space, Hardening Your Home

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Wildfire: Prevent Home Ignition P.1

Video:

Wildfire: Prevent Home Ignition P.2

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Wind-Damage Reduction as a Function of Retrofit Level

Wind-Damage Reduction as a Function of Retrofit Level
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Windblown embers and firebrands are the most common cause of structural fires in wildfires, followed by fires started by radiant heat igniting surfaces or breaking windows and allowing embers in, followed by direct flame contact

Windblown embers and firebrands are the most common cause of structural fires in wildfires, followed by fires started by radiant heat igniting surfaces or breaking windows and allowing embers in, followed by direct flame contact
CAD File:

Window head at window frame wall

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Window head at window frame wall
CAD File:

Window head at wood frame wall

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Window head at wood frame wall
CAD File:

Window sill at wood frame wall

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Window sill at wood frame wall
CAD File:

Window sill at wood frame wall

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Window sill at wood frame wall
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With the nailed block method, wood blocks are attached to the sill plate and the cripple wall plywood is attached to the block to provide shear strength for correctly bracing a cripple wall in a seismic retrofit

With the nailed block method, wood blocks are attached to the sill plate and the cripple wall plywood is attached to the block to provide shear strength for correctly bracing a cripple wall in a seismic retrofit
Case Study:

WPPI GreenMax-Chambers Residence: Near Zero Energy Monitoring Summary

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Wrong - Class I vapor retarder over framed basement walls can cause condensation, mold, and rotting because plastic prevents drying to the inside; the outside should have waterproofing and vertical drainage, and the framing should be spaced from the wall.

Wrong - Class I vapor retarder over framed basement walls can cause condensation, mold, and rotting because plastic prevents drying to the inside; the outside should have waterproofing and vertical drainage, and the framing should be spaced from the wall.
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Wrong - The below-grade concrete does not have the correct construction to be impermeable to moisture because the lumber is untreated and against the concrete that lacks waterproofing.

Wrong - The below-grade concrete does not have the correct construction to be impermeable to moisture because the lumber is untreated and against the concrete that lacks waterproofing.
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Wrong - Volcano mulching harms trees and wastes mulch by piling it up the trunk of a tree where moisture can cause rot.

Wrong - Volcano mulching harms trees and wastes mulch by piling it up the trunk of a tree where moisture can cause rot.
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Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure

Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure
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Wrong – Conventional wood deck risks ignition from embers falling on the surface or from unmaintained vegetation burning below.

Wrong – Conventional wood deck risks ignition from embers falling on the surface or from unmaintained vegetation burning below.
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Wrong – Drain pipe has been cut and foundation penetration has not been properly sealed

Wrong – Drain pipe has been cut and foundation penetration has not been properly sealed