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Old 10-22-2011, 04:54 PM   #1
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Fireblock needed here?


The pipes are behind a wall but this space is open to the utility room. I don't think I need to fireblock here but wanted some others opinions.

First pic from finished wall side second pic from the utility room showing the opening




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Old 10-22-2011, 05:07 PM   #2
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Fireblock needed here?


You need a lot of fireblocking. To make it easy look at any area that goes from a vertical area to a horizontal, it will need to be blocked. like the open space to the joist bay.

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Old 10-22-2011, 05:46 PM   #3
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Fireblock needed here?


The back of this wall will be open to the utility room there is a one foot gap as the wall does not butt up against the foundation wall. Still needs blocked then, should I block the opening as well?
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Old 10-23-2011, 12:42 AM   #4
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Fireblock needed here?


Not to get to carried away with this but draft stop and fire stop are 2 different ways of doing what you need to do.
Firestop:
In concealed spaces of stud walls and partitions, including furred spaces, at the ceiling and floor level and at 10-foot intervals horizontally; At all interconnections between concealed vertical and horizontal spaces such as occur at soffits, bulkheads, drop ceilings, cove ceilings, etc.; In concealed spaces between stair stringers at the top and bottom of the run. At gaps 1 inch or less and at openings around vents, pipes and ducts at the ceiling and floor level; batts or blankets of mineral wood or fiberglass must be used.

Draftstop:
When the ceiling of the finished basement is not attached directly to the underside of the floor joists above or when the floor joists are comprised of open web trusses, draftstopping must be provided. Sufficient draftstopping must be installed such that the area of the concealed space does not exceed 1,000 square feet and is divided into approximately equal areas. Draftstopping shall be installed parallel to the floor framing members.

From what I see in the pictures you have a lot of work too do.
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Old 10-23-2011, 12:51 AM   #5
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Fireblock needed here?


Just to make it a little easier to understand:
FIRE BLOCKING MATERIAL:Fire blocking shall consist of one of these material:
5/8-inch gypsum board.
2x lumber (2x4, 2x6, etc.).
Two thicknesses of 1x lumber (1x4, 1x6, etc.) with staggered joints.
One thickness of 23/32-inch of plywood or OSB with joints backed a minimum of 6 inches with the same material.
One thickness of 3/4-inch particleboard with joints backed a minimum of 6 inches with the same material.
3-inch cement based millboard. Batts or blankets of mineral wool or fiberglass

DRAFTSTOPPING MATERIAL:
Draftstopping shall consist of one of the materials listed below.
1/2-inch gypsum board
3/8-inch wood plywood or OSB
3/8-inch particleboard, type 2-M-W.
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