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This State of California-approved seismic gas shutoff valve will stop the flow of natural gas from the meter into the home if significant seismic activity is detected.

This State of California-approved seismic gas shutoff valve will stop the flow of natural gas from the meter into the home if significant seismic activity is detected.
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This underground fuel tank is anchored to a concrete base to resist buoyancy forces

This underground fuel tank is anchored to a concrete base to resist buoyancy forces
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This wood-framed wall is connected with framing anchors, metal strapping and ties, and anchor bolts to secure the roof to the walls and walls to the foundation

This wood-framed wall is connected with framing anchors, metal strapping and ties, and anchor bolts to secure the roof to the walls and walls to the foundation
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Three different anchoring methods are shown for making the home more resistant to getting moved off its foundation in an earthquake.

Three different anchoring methods are shown for making the home more resistant to getting moved off its foundation in an earthquake.
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Three types of foundation walls: Stem-plus-wood stud cripple wall, reinforced concrete wall, and reinforced concrete block/masonry wall

Three types of foundation walls: Stem-plus-wood stud cripple wall, reinforced concrete wall, and reinforced concrete block/masonry wall
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To increase a masonry-walled home’s resistance to seismic forces, solid wood blocking is added between the roof rafters, anchors are added to connect the brick wall to the rafters and floor joists, building diaphragms are added, foundation braced

To increase a masonry-walled home’s resistance to seismic forces, solid wood blocking is added between the roof rafters, anchors are added to connect the brick wall to the rafters and floor joists, building diaphragms are added, foundation braced
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Top view showing how the chimney is attached to at least four ceiling joists running parallel to the exterior wall.

Top view showing how the chimney is attached to at least four ceiling joists running parallel to the exterior wall.
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Top view showing how the chimney is attached to ceiling joists that run perpendicular to the exterior wall.

Top view showing how the chimney is attached to ceiling joists that run perpendicular to the exterior wall.
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Tornado, Hurricane, and Earthquake Risk Profile of 379 U.S. Urban Areas

Tornado, Hurricane, and Earthquake Risk Profile of 379 U.S. Urban Areas
Video:

Transfer Grilles (1)

Video:

Transfer Grilles (2)

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Transfer grilles allow air flow between rooms

Transfer grilles allow air flow between rooms
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Transfer grills and jump ducts provide pathways for air to reach the centrally located HVAC return grille, even when bedroom doors are shut.

Transfer grills and jump ducts provide pathways for air to reach the centrally located HVAC return grille, even when bedroom doors are shut.
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Transom returns are installed over interior doors to provide a pathway for return air

Transom returns are installed over interior doors to provide a pathway for return air
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Turn valve clockwise from vertical (aligned with piping) to horizontal (perpendicular to piping) to shut off gas

Turn valve clockwise from vertical (aligned with piping) to horizontal (perpendicular to piping) to shut off gas
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Two L-brackets or seismic snubbers are installed at each corner of the HVAC unit and a vibration isolator or spring mount is installed in each corner to anchor the unit while allowing for slight movement in an earthquake

Two L-brackets or seismic snubbers are installed at each corner of the HVAC unit and a vibration isolator or spring mount is installed in each corner to anchor the unit while allowing for slight movement in an earthquake
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Types of brackets recommended for use in securing cabinets and drawers to the wall of the home.

Types of brackets recommended for use in securing cabinets and drawers to the wall of the home.
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Underwriters Laboratory label for a safe room door.

Underwriters Laboratory label for a safe room door.
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Use flexible straps to secure large electronics equipment like computer monitors and microwave ovens during seismic events.

Use flexible straps to secure large electronics equipment like computer monitors and microwave ovens during seismic events.
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Use plumbers metal strapping, wood blocking, and shelving brackets to secure a water heater in a corner to prevent tipping during an earthquake.

Use plumbers metal strapping, wood blocking, and shelving brackets to secure a water heater in a corner to prevent tipping during an earthquake.
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Use strapping, wood blocking, and shelving brackets to secure a water heater to a straight wall to prevent tipping during an earthquake.

Use strapping, wood blocking, and shelving brackets to secure a water heater to a straight wall to prevent tipping during an earthquake.
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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
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Vented crawlspace foundation insulated at floor joist with rigid foam.

Vented crawlspace foundation insulated at floor joist with rigid foam.
Case Study:

Veridian Homes: Cold Climate Region 40+% Energy Savings