1 ROUGH OPENING PREPARATION (CONTINUED)
D.Cut the weather resistive barrier, if applicable (1D).
Water Resistive Barrier
1D
1st cut
4th cut:
3rd cut
2nd cut 
Make a 6" cut up from each top corner at a 45° angle to allow the weather barrier to be lapped over the fin at the head of
the door.
E.Fold the weather resistive barrier (1E). Fold side flaps into the opening and staple to inside wall. Fold top flap up and temporarily fasten with flashing tape.
F.Apply sill flashing tape #1. Cut a piece of flashing tape 12" longer than the opening width. Apply at the bottom of the opening as shown (1F) so it overhangs 1" to the exterior.
Note: The tape is cut 12" longer than the width so it will extend 6" up each side
of the opening.
G.Tab the sill flashing tape and fold. Cut 1" wide tabs at each corner (1/2" from each side of corner) (1G). Fold tape to the exterior and press firmly to adhere it to the weather resistive barrier.
H.Apply sill flashing tape #2. Cut a piece of flashing tape 12" longer than the opening width. Apply at the bottom further towards the interior, overlapping tape #1 by at least 1". Do not allow the tape to extend past the interior face of the framing (1H). If the wall depth is greater than 5", add a third piece of flashing tape. The flashing tape should come to within 1" of the interior face of the framing.
Note: The flashing tape does not need to extend all the way to the interior of the framing.
I.When required for adequate sill support, attach the optional aluminum sill support or wood blocking to the exterior of the box plate to support the exterior edge of the door sill (1I). Place the sill support flush with the sill rough opening.
1E
1" |
1F |
6" |
1/2" |
1/2" |
1G |
1" |
1H |
1I |
