fire stops how, in non structural wall

Old 04-16-02, 08:04 PM
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fire stops how, in non structural wall

OK code says I must have some firestop installed. I plan on building the walls with 2*4 about 1" from the cinder block. How do I go about doing the firestop?
Old 04-25-02, 06:06 PM
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If your worried about fire in the one inch space behind the wall. Just put a piece of 5/8 drywall on top of your top plate before you put it up, cut it 4-1/2" if yor using 2x4 framing, so it extends back the 1" to the block wall. Then use fire rated caulk to seal it to the block.
Old 04-26-02, 11:21 PM
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You'll probably need vertical firestop every 10 feet too (to slow the horizontal spread of fire behind the wall). J874's technique will work for that too.

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