Note: Engineered design is required for houses where the basic wind speed exceeds 110mph (100 mph in hurricane wind prone regions).

Facing Page: Framing hold-down graphic showing different options for tying a building together. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Facing Page: Framing hold-down graphic showing different options for tying a building together. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Top: Collar tie installation to strengthen roofs. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Top: Collar tie installation to strengthen roofs. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Middle: Two methods of anchoring framing to piers. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Middle: Two methods of anchoring framing to piers. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Middle: Two methods of anchoring framing to piers. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Middle: Two methods of anchoring framing to piers. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Bottom: Method of tying together framing elements with a thru-bolt. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.

Bottom: Method of tying together framing elements with a thru-bolt. Image Credits: Sparks Engineering, Inc.|Patrick Sparks.


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Download Resilient Heritage: Protecting Your Historic Home from Natural Disasters (GOHSEP)

National Center for Preservation Technology and Training
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