Metal Roof

[Ole rooster]

Quote:
I did this on my well house and the nail back out. I drove um back in and covered them with roofing tar. Still back out. So next summer I'm changing metal and going with screws.

 

[Chemguy]

Quote:
X2, you can buy the hex screws with a rubber washer to seal it from water.

This is what I did, works well. I'm no carpenter, so the plywood allowed me to attach the metal securely even if I missed a rafter with a screw.

 

[galanie]

Everyone around here just nails them to the rafters. I dont' think I've ever seen one where they used any sheathing first.

 

[Linn Bee]

Just finished my garden shed this fall.

The metal roofing came in 30" widths which would not work for nailing to the rafters at either 16" or 24" o/c. We used 2 X 4 'nailer' boards between each rafter about every 2 feet apart going down from the peak. The metal roofing screws - special screws with a rubber washer attached to seal the screw hole from leaking - were then used to connect the roofing pieces to the building. Venting was all along the cap at the peak.

That's the way the directions suggested, anyway.