- Q.Most of the houses we build have 12/12 roofs
with plumb fascias. Even though our roofer uses drip-edge,
water still sometimes drools down the fascias. What are we
A.Architect and roofing consultant Harrison
McCampbell responds: Standard drip-edge profiles include a
turned-out bottom lip that directs water away from the fascia.
The distance from the end of this lip to the face of the fascia
varies, depending on the manufacturer and the style of the
drip-edge you are using, from as little as 1/4 inch to as much
as 1 inch.
Most drip-edge profiles are successful at directing water
away from the fascia during periods of heavy rain. During
drizzly weather, though, rainwater is sometimes able to curl
under a drip-edge and run down the fascia, especially if the
drip-edge has a short lip. One manufacturer selling a drip-edge
with an aggressive lip is Lamb & Ritchie of Saugus, Mass.
(781/941-2700). Its Positive Rite Flow drip-edge has a lip that
projects 1 inch from the fascia. It’s available in
30-gauge galvanized, white galvanized, and brown galvanized
steel; 26-gauge mill-finish; white and brown aluminum; and
Rite Flow Drip-Edge