Replies

1. 
   dovetail97128 | Oct 22, 2009 04:17am | #1

   I don't know the name but I had an insulation sub price it out for me as an option on a job last year.
   If I can get a hold of him i will ask him the name and supplier.

   Life is Good
1. 
   5Years | Oct 23, 2009 10:38pm | #2

   Thanks - I talked to an insulation contractor and was told about FSK Paper.  Sounds like that is what I need.

   I worked construction in college and for my mid-life crisis decided to build a mtn cabin. Rules have changed considerably from 30 yrs ago.

    

1. 
   dovetail97128 | Oct 23, 2009 10:42pm | #3

   Just googled the FSK paper.
   That is the stuff.
   Glad ya found it.
   Life is Good

2. 
   renosteinke | Oct 24, 2009 12:47am | #4

   The FSK paper I find here: http://www.jrproductsinc.com/shop/pc/viewPrd.asp?idcategory=18&idproduct=111  is only tested as to surface flame spread. It will NOT substitute as drywall in protecting insulation from a fire.

   "Flame spread" is a test where they see if the face of the product will catch fire. Those tests can be measured in minutes.

   Wall assemblies - to establish the fire rating of the wall itself - are subjected to one big actual fire for at least 20 minutes. During that time, the wall cannot fail, nor can the 'protected' side get hot. This is the sort of thing drywall excells at.

1. 
   johnharkins | Oct 24, 2009 02:59am | #6

   don't assume that T&G over open framing will not pass fire ratingdid a more cathedral ceiling in last year & ran by the inspector my plans - either 1/2"cdx plywood that I would tape & mud to get airtight & then apply ceiling beadboard to that or just nail beadboard to ceiling joists
   he said call a plan checker who immediately went over w/ me calling out specs & either option worked - thinking if it was cedar it may have not passed threshold ( wood species were considered )
   went w/ airtight scheme

1. 
   5Years | Oct 24, 2009 03:20am | #7

   I checked with the inspector in our area - he said they are pretty strict on the 3/4" thickness. If slightly less than 3/4" material then need either sealed drywall or this FSK paper.

   The cabin is logs on the main floor and 2x4 framing on gable ends. I have T&G that matches logs to complete the gable ends.

   The FSK paper is cheap and looks pretty easy to install.

3. 
   fingersandtoes | Oct 24, 2009 02:58am | #5

   I'm curious. I've never heard of the paper. What walls do you require a rated assembly for in a cabin?