Nails

[Chipper Chicken]

How about getting some of the rigid pink sheet insulation (foamular150 by Owens Corning) and pressing it onto the nails from inside? (I got mine at Home Depot) How far into the coop do the nails extend? How big an area? You could then put a few washer backed screws in from the inside to keep it nice and secure. Would help insulate the roof a bit from heat as well as cold.

 

[reptileink]

I haven't built the roof yet, just brainstorming, so no pictures.

Basically just a slant roof, nothing fancy. I am going to need stronger ply anyway, as the ply I have access too is only 11/32.

I was going to shingle it, but I have never shingled before in my life, and am quite intimidated by the proceedure, but I have shingles and free tar paper/nails/drip edge, so no "real" cost there. I am pretty sure you can't screw in shingles.

I like the pink foam idea, but wondering if the chickens would peck at it, or if any part came loose if it would cause any issues.

My walls are only about 33" tall, with the high side of the roof being about 36"

This is my build thread https://www.backyardchickens.com/t/919821/back-at-it-again

 

[ChickenCanoe]

Right. The recommended attachment is with galvanized roofing nails. The nail length is dependent on the sheathing thickness.
Shingling isn't a big deal at all. Just put down a starter row and keep them level. A square of shingles package has the instructions on the wrapping.

 

[ksguy]

I haven't built the roof yet, just brainstorming, so no pictures.

Basically just a slant roof, nothing fancy. I am going to need stronger ply anyway, as the ply I have access too is only 11/32.

I was going to shingle it, but I have never shingled before in my life, and am quite intimidated by the proceedure, but I have shingles and free tar paper/nails/drip edge, so no "real" cost there. I am pretty sure you can't screw in shingles.

I like the pink foam idea, but wondering if the chickens would peck at it, or if any part came loose if it would cause any issues.

My walls are only about 33" tall, with the high side of the roof being about 36"

This is my build thread https://www.backyardchickens.com/t/919821/back-at-it-again

I'm with ya on using stuff you have to save on cash. As far as shingles go, don't be intimidated. If you can swing a hammer and know how to make a proper ham sandwich, you can put on shingles. Layer the ham just right and line up the edges, right? Same for shingles. There are tutorials all over the web about it but here ya go. First, lay your tar paper. First layer at the lowest area of the roof, then overlap up to the peak, overlapping each row by about 2". Use staples to secure it. Leave appx 3/4" of tar paper hanging proud of each edge of the plywood. Next comes drip edge. Nail it down around the perimeter, starting at the lowest edge first, then sides, then peak. The drip edge goes over the top of the tar paper, with the tar paper that was proud of the edges just folded down under the drip edge. Finally, shingles. Again, lowest edge first. I'm assuming these are 3-tab shingles. To do it like you would a house, you need to do a "starter strip" first, at the bottom edge. Put the first course down so that the entire tab hangs off the roof, with the strip of tar at the midline of the shingle about 1/2" past the edge of the drip edge. Use 3 nails per shingle, along the top edge. One at each corner, and one in the middle. Next you do the first course of "real" shingles. Lay them so they overlap the starter row and the edge of the tabs is just even with the edge of the starter course of shingles. For these you'll do 4 nails per shingle. Drive the nails through the center of the tar strip, one at each corner, and one at the top of each slit that makes the tabs. You'll have to trim the shingles at the sides of the roof. Warning that shingles will destroy utility knife blades, so have a couple spares. For each new row, line up the bottom edge of the new row just below the tar strip on the row below it. Rinse and repeat until you're at the peak. It's likely things won't line up perfectly at the peak. Keep going until you have shingles that hang past the peak, then cut off the excess. Lay a strip of 6" flashing over the top of the shingles - 4" on the roof side, and 2" bent down over the overhang. Nail it down with the galvanized roofing nails and seal up the nails with roofing tar.

As for your inside problem, I agree that if the birds can reach the roof, it'll be pecked and the foam will come apart. I'd recommend getting thicker OSB sheathing for the external roof, and using your 11/32 plywood fastened inside to cover the nails. Cut it to fit the inside dimensions, hold it up against the nails, then use a strip of 2x4 or 2x2 nailed or screwed to each side wall, right up against the inside plywood to hold it up.