Eaves, rakes and drip edge: methods and worked application

A vertical flow of eight numbered steps with a decision at step 2. 1 prepare; 2 ice barrier required here? No leads to eave metal on the deck with the underlayment over it; yes leads to the barrier and eave metal in the order of the method used, the eave metal photographed before anything covers it; both rejoin at 4; 4 underlayment up the roof; 5 rake metal from the eave up; 6 photos and checklist before cover; 7 starter course; 8 shingles and overhang check.

1

Prepare: adopted code edition and amendments; shingle maker's instructions; any high-wind programme

2

Ice barrier required by the jurisdiction? Whether one is required is set locally (Table R301.2(1))

3

No: eave metal on the deck (laps 2 in or more, nails high in the flange, none in the face), photographed, then underlayment over it (2018 IRC). Yes: the code order (metal on the deck, barrier over it), or a documented published method agreed with the inspector: ARMA, a 12 in strip, the metal, then the barrier; NRCA, the sheet on the deck, the metal, then a strip-in; IKO, the membrane wrapped round the deck edge, then the metal

4

Underlayment up the roof

5

Rake metal over the underlayment, from the eave up, upper over lower, bottom piece past the eave metal

6

Photographs of each corner and the inspection checklist, before the starter course and shingles cover them

7

Starter course

8

Shingles; overhang checked against the window for the profile (ARMA; NRCA)