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Old 12-22-2012, 09:39 PM   #16
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Fire Blocking Basement


Whoops, because I said it wrong... PIR (foil-faced insulation board); http://www.buildingscience.com/docum...roperty-table/

PIC is polyisocyanurate; https://docs.google.com/viewer?a=v&q...4EyM707m0gPdXQ

Sometimes called "isocyanurate" or just "iso"; http://www.buildingscience.com/docum...some-materials

Locally, at Lowe's; http://www.rmax.com/downloads/DataSheets/rmp3.pdf

In the previous link, Figs. 11,12, and 15 (rim); Whoops, because I said it wrong... PIR (foil-faced insulation board); http://www.buildingscience.com/docum...roperty-table/

PIC is polyisocyanurate; https://docs.google.com/viewer?a=v&q...4EyM707m0gPdXQ

Sometimes called "isocyanurate" or just "iso"; http://www.buildingscience.com/docum...some-materials

Locally, at Lowe's; http://www.rmax.com/downloads/DataSheets/rmp3.pdf

In the link I gave previously, Fig. 11, 12 and 15 (rim joist); http://www.buildingscience.com/docum...lation-systems

Gary

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Old 01-23-2013, 07:02 PM   #17
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Fire Blocking Basement


How are guys fireblocking the basement walls that use the xps foam board directly in contact with the wall method (and 2x4 wall in front)? Install the XPS, then you have to cut strips in the XPS to get a 2x4 in direct contact with the concrete wall (caulk Seams)? Just curious.
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Old 01-24-2013, 12:27 PM   #18
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Originally Posted by AllGoNoShow View Post
How are guys fireblocking the basement walls that use the xps foam board directly in contact with the wall method (and 2x4 wall in front)? Install the XPS, then you have to cut strips in the XPS to get a 2x4 in direct contact with the concrete wall (caulk Seams)? Just curious.
I am looking for the same feedback.

I have already put up the 2 inch XPS boards from the concrete floor to the floor joists. I have already put in XPS board and foam sealed the rim joists.

I am ready to frame in front of my XPS but want to do the fire blocking that is required and want to ensure I do it correctly.
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Old 01-24-2013, 03:53 PM   #19
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Fire Blocking Basement


I recommend working with your local AHJ, as he/she will be inspecting it =wiring, plumbing, egress, etc. for the paper trail to satisfy your HO Insurance carrier if ever a claim. Some read the fire-stop as a 2x against the concrete-every 10', others, only above the frame wall to concrete, ask them; prescriptive codes (added amendments per locale); http://publicecodes.citation.com/ico...002_par018.htm

http://publicecodes.citation.com/ico...002_par031.htm

Gary
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Old 01-25-2013, 11:37 PM   #20
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Fire Blocking Basement


Do a search for fire blocking. At one time there was a very knowledgable B/O here. He and his wife had a child, now he has other priorities.
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Old 01-27-2013, 08:01 PM   #21
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Originally Posted by Gary in WA View Post
I recommend working with your local AHJ, as he/she will be inspecting it =wiring, plumbing, egress, etc. for the paper trail to satisfy your HO Insurance carrier if ever a claim. Some read the fire-stop as a 2x against the concrete-every 10', others, only above the frame wall to concrete, ask them; prescriptive codes (added amendments per locale); http://publicecodes.citation.com/ico...002_par018.htm

http://publicecodes.citation.com/ico...002_par031.htm

Gary
My town guy who does the inspections is hilarious (read-lazy). When he inspected the egress window he went down to the basement, said it looked "fine" and issued me my compliance letter. Apparently he is so good he could eyeball the half dozen measurements that need to be met to have an egress window to be code...makes passing inspections easy tho!

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