Staple No. 15 felt to the roof and nail valley flashing in the valleys, cut to overhang the roof edge by 3/4 in. Lay the shingles according to the directions that come on each package. We set the shingles at a 5-in. exposure and used a 1×2 as a guide to keep them even.
Shingle the roof
Don’t stop now! Once the plywood is on, cover it to make it weatherproof. Staple No. 15 roofing felt over all the roof sheathing. Then run an additional strip lengthwise down each valley. Now take a break.
Installing cedar shingles is enjoyable, rewarding work, but it’s time consuming. To speed up the job, rent a 1/2-in. crown pneumatic staple gun and buy a box of 1-in. long staples to fasten the shingles to the roof. Space the shingles 1/4 in. apart to allow for expansion and stagger the joints between shingles by at least an inch. Double the first row and let the edges overhang by 3/4 in. This photo shows you how to deal with the valley.
Setting the screens
We special-ordered our screens to save time and money. You’ll need 15. Ask for a 10-degree bevel on the bottom to fit the tapered sill and order them painted.We painted ours, but it was time consuming. Nail 3/4 x 3/4-in. stops to the 2×4 uprights and top plate to secure the screens.
We also ordered a simple cedar screen door, complete with the hinges and latch set.
Although the drama in this screen house lies in its overall structure, several decorative details add more punch. Up alongside each king post we added 4×4 braces for better looks (Figure A). And to keep the bugs out, we nailed 2×6 blocking ripped at a 45- degree angle between each rafter on top of the 4x4s (Figure A).