Posted By stella_00 on 10 Jul 2014 06:28 PM
We recently began building a timber frame home. Our timber frame will go up in a few weeks. Our timber framer recently had a home with an uneven roof because the SIPS were not all the same thickness.
Our timber frame contacted our general contractor....
"We would like to recommend that a layer of 7/16" OSB is applied to the topside of the SIPS panels on the roof. Basically, this "evens out" the roof a little and allows for staggering of the seams, since the panels are manufactured to come together over a roof rafter and the SIPS are therefore not staggered."
Does anyone have any experience with this or suggestions?
Thanks!
1 - Your timber framer who recently had a home with an uneven roof because the SIPs were not all the same thickness, I assume they were ThermoCore SIPs?
2 - What thickness were they supposed to be (4", 6",8" etc)?
3 - What did ThermoCore state about this problem and was it the Missouri or Indiana plant?
4 - Not understanding on how a layer of 7/16" OSB would "even out" the roof unless they furr out the roof with different thickness furring channels.
I am pretty sure most big-name SIP companies have a quality control and it seems strange that they would let SIPs go out the door that were drastically different thicknesses.