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21st Century Home Improvement
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| Business Hours | ||
 Mon | 24 Hours | |
| Tue | 24 Hours | |
| Wed | 24 Hours | |
| Thu | 24 Hours | |
| Fri | 24 Hours | |
| Sat | 24 Hours | |
| Sun | 24 Hours | |
| Hours extracted from website: “2. Drill 5/8" holes through mudsill and concrete foundation, approximately 8" deep, every 4', and 1' from each end. Vacuum dust from holes, fill holes with Epoxy, and install bolts in holes. Allow 24 hours for Epoxy to set.” | ||
To prevent this, the mudsill must be bolted to the foundation properly (see step 2). The walls between the foundation and the floor of a home, called cripple walls are a second problematic area. The shear forces during an earthquake often cause the cripple wall to collapse. To prevent this, the cripple walls must be braced with plywood and nailed correctly. (see step 6) The third area that commonly fails during major earthquakes is the connection between the cripple walls and the floor of the home. In order for a retrofit to be effective, all of these areas must be strengthened. 21st Century Home Improvement Painting & Roofing strengthens each of these areas to assure that the effectiveness of our retrofits is maximized. We also encourage you to educate yourself and your family about earthquake preparedness by contacting agencies such as the Red Cross and FEMA...more
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937 Harrison St
San Francisco, CA 94107
Phone: (800)863-8181
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Dot is Green if 21st Century Home Improvement is currently open and Red if currently closed.
As of: 10:40 pm (PDT) Thu May 24, 2012. [Change]
As of: 10:40 pm (PDT) Thu May 24, 2012. [Change]