INSTALLATION GUIDE
PAGE
6
STRONGHOLD ATTACHMENT WITH BUTYL
PLACING STRONGHOLD ATTACHMENT WITH BUTYL BASE:
Identify the position of the attachment to install before peeling the release
paper.
Ensure that the attachment lands on a flat surface. If the surface at the location
of the attachment is uneven, add butyl patches to flatten the surface.
MARK ARRAY LOCATION:
Clean roof surface of dirt, debris, snow, and ice. Mark array location and
determine roof attachment locations based on array layout. Snap chalk lines
to mark each row of roof attachment points. On shingle roofs, snap lines 1/4”
below upslope edge of shingle course. Locate rafters and mark at intersection of
attachment lines. Attachment spacing determined per Design and Engineering
Guide or project specific U-Builder Engineering Report .
1/4 "
NOTE:
Pilot holes are not necessary to be drilled for self-drilling screws. But if holes
are drilled to identify the rafter, they should be backfilled with sealant before
installing the attachment.
CAUTION
Do not peel the release paper from the butyl on attachment before identifying
Do not peel the release paper from the butyl on attachment before identifying
the position of attachment to install.
the position of attachment to install.
Deck Holes
Deck Holes
Rafter Holes
WARNING
Installing attachment on uneven surfaces, shingle gaps or overlaps, creates
Installing attachment on uneven surfaces, shingle gaps or overlaps, creates
a risk for water leakage due to gap created between the adhesive and roof
a risk for water leakage due to gap created between the adhesive and roof
surface.
surface.
Note:
See Page 8 for instructions on placing extra butyl pads or contact Unirac
team for further information.
PRO TIP
PRO TIP
Install the attachment within 1/4" of the chalkline to allow the rail to slide
Install the attachment within 1/4" of the chalkline to allow the rail to slide
freely in the rail clamp.
freely in the rail clamp.
