Issues related to earthquake safety, bracing, or preparation.

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Is this foundation properly supported against rotation in an earthquake?

This foundation was built 1938, and seems unusually tippy even for the time. This is in an earthquake zone, the garage has a second floor above, and the given wall is shearwalled and bolted, with ...
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1answer
47 views

How do I secure this post to the structure to protect against seismic damage?

My foundation is attached to the frame of my house using seismic brackets, and I live in a earthquake-prone area. I noticed I have 3 posts that hold up my center of my house that seem to only be ...
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42 views

Reinforcing a boulder/concrete wall

Our fixer-upper has a freestanding wall outside, that is built of melon-sized boulders cemented together. The back side was left rough, and we're starting to get cracks (I patched with cement-all). So ...
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5answers
5k views

How do I tell if my house is brick or brick veneer?

I live in a brick house, and am interested in understanding whether it is brick or brick veneer, as a way to understand what kind of risks it (and we) may face during an earthquake. I hear that brick ...
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1answer
185 views

Proper backfill for a trench dug below foundation level (within the 45 degree cone of support)

Given a trench dug below foundation level, what's the proper way to backfill? Here I'm talking about a trench below the bottom edge of an unreinforced concrete foundation built in 1950, supporting a ...
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2answers
3k views

Trying to secure a 100lbs floor mirror so it doesn't tilt over. is it possible to do this without a stud?

This wall is not shared by another tenant directly next door but does have a unit above me. I cannot find a stud. i have used a magnet stud finder. I have nailed a 2.5" nail into the wall in 1 inch ...
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2answers
1k views

Are there span tables published for repairing a cut roof joist?

A roofing company mistakenly cut a 2 foot section out of a roof joist, on my home. I'm seeking a reference to what would constitute a proper repair, preferably a prescriptive code or a load table. ...