When we are cutting the poly ISO it is out side on a jobsite so the drywall cutter avoids setting up a tablesaw and all the waste that needs to get cleaned up after.
A word of advice if your ever cutting XPS styrofoam. Do not use a table saw. We had an incident a few years back in town where...
A suggestion for your ceiling. Use the same dimension lumber as the bottom chord of the truss and hang them to the horizontal ties that stabilize the trusses using huricane clips. The spanning lumber can be butted together and joined with truss style gang nails to reach uninterupted from end to...
I have developed a unique way to do my rim joists when framing using inch and a half poly ISO. For cutting I use a wallboarders buddy drywall cutter and simply score both sides then snap it just like wall board. The cut is clean and there is no waste to clean up.
We set the TJI rim joist back an...