Roof wall intersections presented by fcsi ccpr fabaa leed green assoc.
Roof to wall intersections.
76 build supplement flashings section 4 roof wall intersections roof wall intersections section 4.
Places where roofs and walls intersect are very common.
The most common roof to wall intersections involve either a gable roof with its ridge running perpendicular to the wall or a shed roof that slopes downward away from the wall.
For deck flashing.
A headwall is a level junction where a roof meets a wall.
The narrower step flashing just isn t wide enough to protect the intersection fully.
Roof wall flashing detail specifications snafus.
This illustration shows proper flashing at a headwall condition.
The current flashing details in the 2013 international residential code irc for sloped roof wall intersections are very difficult to construct.
The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.
Yes even flat roof to wall intersections are not being properly done.
Bigger step flashing is better.
Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a.
4 1 roof to wall junction 78 4 2 roof junction detail 81 4 3 tricky lean to junction 85 4 4 so t detail at gable verge 88 4 5 parapet or balustrade to wall junction 90.
Schauffele division 7 solutions inc.
Roof leg and a 7 in.
Certified air barrier specialist 007007 roy f.
Do not seal housewrap or building paper to step flashing.
At roof to wall intersections see figure 1.
Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
They re called headwalls and sidewalls.
This article illustrates and discusses alternate or rather goofy attempts at roof wall intersection flashing to prevent leaks water damage and points out where leak risks may remain.
I recommend 12 in wide step flashings bent for a 5 in.