Every job needs a Whaaa?
No it doesn’t. But, this is mine. See the great big sheets of insulation on the roof. They’re 3″s deep. Oh wait, no they are not. They’re 3.3. So times 2 layers, plus 3/4″ for the strapping … now attach with 8″ screws less 3/8″ for the screw head and special saw/auger bit tip …
Add a bit of angle … the screws don’t make it into the wood deep enough to hold a roof down in the wind. Ahhhhhhhhhhhh.
I’ze in trouble.
Blowin’ in the wind
The answer my friends is blowing in the wind. Almost literally. The wind came up and stuff looked to fly away.
So after much humming and hawing the only solution is to cut 3/4″ channels in the insulation, fit the strapping into the channels and then screw the strapping down. I will then cover with ice/water shield and then restrap, screwing into the channeled strapping, for the metal roof. Sheesh.
One catch to using “recycled/repurposed”
Ah, now I know why I got such a great deal on brand new 3″ roofing insulation. It was all oversized/different thicknesses. So these are probably rejects from a larger installation.
Well. Tomorrow will be a messy messy day as I carve channels in the insulation with a circular saw. Might even get out the chisel.