Installation Guide

Figures 14a-14e: Flashing Details for Typical Roof Projections
Figure 14a: Skylight Flashing Figure 14b: Skylight Installation
ROOF PROJECTION FLASHING DETAILS
Figure 14d: Typical Projection Flashing
Figure 14c: Typical Projection Flashing
Figure 14e: Typical Projection Flashing
1" minimum clearance
around projection
Keep edge of flange
minimum 2" from
edge of Certi-label
shake or shingle joint
Counter flashing
Jack
Plumbing stack
Certi-label shake
or shingle joint
Nails should not
penetrate flashing
flange underneath
Step flashing
3" laps
Bottom apron
flashing
Top, head, saddle,
pan or cricket flashing
Bottom or
Apron flashing
Head flashing
Step flashing interwoven
with each course
Typical chimney
flashing requiring
soldering
Caulking
Certi-label product
Certi-label
product
Step flashing 3"
minimum overlap
Horizontal width 4" 2 1/2"
3" 2 1/2"
Shakes Shingles
Recommended step flashing width
Typical chimney flashing
not requiring soldering
Solder joints
3"
6"
3" minimum
Caulking
6" minimum
11
Vertical width
Bottom apron
flashing
Counter
flashing