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Vented crawlspace foundation insulated under floor joists with rigid foam.

Vented crawlspace foundation insulated under floor joists with rigid foam.
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Wall-mounted gas tankless water heater

Wall-mounted gas tankless water heater
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Wallingford Passive House | Foundation Details

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Water heater is elevated to a new location above the Base Flood Elevation

Water heater is elevated to a new location above the Base Flood Elevation
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Water intrusion

Water intrusion
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Water-proof materials cover the exterior side of crawlspace windows in a crawlspace retrofit, while foil-faced rigid foams seals and insulates the inside face of the openings

Water-proof materials cover the exterior side of crawlspace windows in a crawlspace retrofit, while foil-faced rigid foams seals and insulates the inside face of the openings
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WaterSense approved toilet

WaterSense approved toilet
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Wet Floodproofing

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What Type of Connection is Critical in Creating a Continuous Path Differing Loads?

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Which building form is safest in an earthquake?

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Wind uplift pressure diagram of forces on continuous load path key links.

Wind uplift pressure diagram of forces on continuous load path key links.
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Wire hardware mesh is fastened with a staple gun and screws to the wall to prevent pests from entering the building through small holes and cracks

Wire hardware mesh is fastened with a staple gun and screws to the wall to prevent pests from entering the building through small holes and cracks
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Wood posts for open pier foundations for flood-prone areas.

Wood posts for open pier foundations for flood-prone areas.
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Wood Tornado Shelters Segment 6

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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 - Foundation wall heights do not align.

Wrong - Foundation wall heights do not align.
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Wrong - In floodplains, the interior grade elevation should be equal to or higher than the exterior grade as shown on right.

Wrong - In floodplains, the interior grade elevation should be equal to or higher than the exterior grade as shown on right.
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Wrong - Joint in support beam is inadequately connected and supported.

Wrong - Joint in support beam is inadequately connected and supported.
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Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.

Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.
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Wrong - Polyethylene sheeting should be lapped up sides of walls and pillars and taped

Wrong - Polyethylene sheeting should be lapped up sides of walls and pillars and taped
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Wrong - The basement blanket insulation is loosely attached to the interior of the basement wall, does not cover the entire wall, is not sealed at the edges, and is not installed over rigid foam that covers the entire surface of the foundation walls.

Wrong - The basement blanket insulation is loosely attached to the interior of the basement wall, does not cover the entire wall, is not sealed at the edges, and is not installed over rigid foam that covers the entire surface of the foundation walls.
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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 - The pile foundation of this home nearly collapsed from coastal storm surges because the piles were not embedded deeply enough in the ground.

Wrong - The pile foundation of this home nearly collapsed from coastal storm surges because the piles were not embedded deeply enough in the ground.
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Wrong - The upper edge of the below-grade dimpled plastic rain mat is pulling away from the wall and is no longer tucked under the protective metal flashing so rain water can get behind the plastic mat and wet the foundation wall.

Wrong - The upper edge of the below-grade dimpled plastic rain mat is pulling away from the wall and is no longer tucked under the protective metal flashing so rain water can get behind the plastic mat and wet the foundation wall.