Quote:
Originally Posted by skyking
Here is what I am imagining:
Roof joists->OSB sheeting->3/4" foil board.
Hero-style R-26 minimum insulation between the joists below the OSB  |
R-26 for vaulted roofs isn't even code anymore in our fair PNW states. But since it's a shop, you should be due your proper respect.
Quote:
Originally Posted by skyking
there is a 1.5"x1.5" nailed around the roof perimeter, nailed to the OSB sheeting. The 3/4" foil is inside that.
Now we have a 3/4" space for pex. 3/4" pex might not be needed, but the dimension works for many reasons.
Lay out the pex and clip it down with U-clips and fasteners.
Use a horizontal pattern so you can see the pex. Don't worry about roof fastening yet.
Use small pieces of insulation to block between loops. Lay roofing over that, and shoot the screws down to the OSB. The standing seam roofing only gets screws on one edge, then the next sheet clips onto that piece and hides the screw.
It is easy to put in screws and not hit your tubing. Nothing is covering it.
Finish out the metal as normal.
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Otherwise, it all sounds quite reasonable.
-AC