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All return air and mechanically supplied outdoor air pass through filter prior to conditioning

All return air and mechanically supplied outdoor air pass through filter prior to conditioning
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Although crawlspaces are not recommended in flood-prone areas, they can be designed or retrofitted to greatly increase resistance to flood damage.

Although crawlspaces are not recommended in flood-prone areas, they can be designed or retrofitted to greatly increase resistance to flood damage.
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An alternative design includes strapping the tank to concrete counterweights on opposite sides of the tank.

An alternative design includes strapping the tank to concrete counterweights on opposite sides of the tank.
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An engineered bioswale uses perforated pipe laid in rock and landscape fabric at the bottom of a vegetated trench to direct water away from a site.

An engineered bioswale uses perforated pipe laid in rock and landscape fabric at the bottom of a vegetated trench to direct water away from a site.
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An exterior metal staircase was added to this concrete building for roof access and refuge during tsunamis in Kesennuma, Japan

An exterior metal staircase was added to this concrete building for roof access and refuge during tsunamis in Kesennuma, Japan
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An underground fuel tank is anchored onto poured-in-place concrete counterweights.

An underground fuel tank is anchored onto poured-in-place concrete counterweights.
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Anchoring a fuel tank to a concrete slab is recommended to avoid displacement if flooding occurs.

Anchoring a fuel tank to a concrete slab to avoid displacement if flooding occurs.
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Backflow prevention devices keep water and sewage from entering the home during a flood preventing damage and health and safety issues.

Backflow prevention devices keep water and sewage from entering the home during a flood preventing damage and health and safety issues.
Video:

Backwater Valve Installation

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Base flood elevation and other parameters affected by flood depth.

Base flood elevation and other parameters affected by flood depth.
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Berms are compacted earth or gravel ridges that slow the flow of water from rain, riverine flooding, or storm surges in coastal areas.

Berms are compacted earth or gravel ridges that slow the flow of water from rain, riverine flooding, or storm surges in coastal areas.
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Berms, swales, bioswales, ridges, and vegetation all help to control rainwater runoff on residential sites.

Berms, swales, bioswales, ridges, and vegetation all help to control rainwater runoff on residential sites.
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Bioswales or rain gardens filter storm water through vegetation and rock and sand substrate layers.

Bioswales or rain gardens filter storm water through vegetation and rock and sand substrate layers.
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Bracing of timber pile foundations.

Bracing of timber pile foundations.
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Breaking wave pressure distribution against a vertical wall.

Breaking wave pressure distribution against a vertical wall.
Case Study:

Builders Challenge High Performance Builder Spotlight: David Weekley Homes, Houston, Texas

Case Study:

Building America Top Innovations 2014: California Energy Standards Recognize the Importance of Filter Selection

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Building elevation and plan view of pile foundation for a coastal home.

Building elevation and plan view of pile foundation for a coastal home.
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Building elevation and plan view of roof showing longitudinal shear walls; dimensions are wall-to-wall and do not include the 2-ft roof overhang.

Building elevation and plan view of roof showing longitudinal shear walls; dimensions are wall-to-wall and do not include the 2-ft roof overhang.
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Building siding extended down and over the breakaway wall so the upper wall was damaged when the lower wall broke away.

Building siding extended down and over the breakaway wall so the upper wall was damaged when the lower wall broke away.
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Buildings damaged by a hurricane storm surge: upper homes on gulf shoreline were hit by large waves above the lowest floor, lower left home on bay and right school 1.3 miles from gulf shoreline were hit by surge and small waves.

Buildings damaged by a hurricane storm surge: upper homes on gulf shoreline were hit by large waves above the lowest floor, lower left home on bay and right school 1.3 miles from gulf shoreline were hit by surge and small waves.
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Built-up beam connections, knee brace connections, and diagonal brace connections for wood piles.

Built-up beam connections, knee brace connections, and diagonal brace connections for wood piles.
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Closed-cell spray foam insulates the floor above a vented crawlspace; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests

Closed-cell spray foam insulates the floor above a vented crawlspace; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests
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Closed-cell spray foam insulates the floor above an open foundation; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests

Closed-cell spray foam insulates the floor above an open foundation; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests