Installation Instructions
9
SEAMING MEMBRANE
The top membrane should overlap the bottom sheet by 3". Mark
a line ½ inch out from the edge of the top roof membrane. Fold
back the top 3" overlap and clean both surfaces of the area to be
seamed with the RoofKit Seam Primer using scrubbie pad and
allow to dry completely. Fold the top
membrane sheet back to expose the
seam area. (HINT: A small piece of
seam tape that is tacky on both sides
is useful to tack the membrane back.)
Ensure the entire area is primed past
the seam edge to the marked line.
Unroll the Seam Tape along the length
of the seam, paper side up, aligning
the Seam Tape paper with the marked line. Then with the
release paper still in place, roll the Seam Tape with a steel or
hard roller. This will set the Seam Tape into place and keep
air from being trapped under the tape. Fold the top membrane
back onto the Seam Tape release paper .
Reaching under the top ply of membrane, pull the release
paper away from the Seam
Tape at a 45
o
angle to the
seam. While removing
the paper, draw your hand
across the seam, from the
back to the leading edge.
This will prevent wrinkles
and fishmouths from
forming in the seam. After
the paper is removed, roll the entire length of the seam with a
steel or hard roller – first, across the seam, and then the length
of the seam.
IMPORTANT! If the White Seam Tape does not visibly extend
beyond the leading seam edge, the edge should be cleaned with
Seam Primer and sealed with White Membrane Caulk.
NOTE: When splicing the ends of Seam Tape together,
overlap each piece a minimum of one inch (1") and firmly roll
with a steel or hard roller.
seamed with the RoofKit Seam Primer using scrubbie pad and