Use And Care Manual

Installing Residential Roof Steel
The rst panel on the roof should be ¼" in
from the rake end and can overhang the roof
edge a minimum of ¾" or a maximum of 3".
This method is used as long as the roof plane
is square.
The panels when placed on the roof will run square.
If the roof plane is out of square compensation will need to be made
in the placement of the steel. Most builders place the panels true to
the eaves and not true to the rake to compensate for being out of square.
Running true to the rake means compensation for square has to be made at
the eaves line. This is a noticeable step in the panel from sheet to sheet.
This usually looks like the panel at the eaves line is ¼" longer or shorter than
the previous panel. It also makes the panel look like it has not been cut
square at the end.
Measure the diagonals on the roof. If the measurements
of “A” and “B” are the same then your roof is square. If the
measurements are not the same then adjustments may need
to be made to run your steel correctly.
For Pro-Rib
®
and Premium Pro-Rib
®
panels, the fasteners
at the top and the bottom of the panel should be placed in
the at next to the rib. The rst panel should be placed so the
overlap side of the panel is towards the rake end of the roof.
Tape and lap sealants are required on lap joints when the roof
slope is less than 3/12 as per IBC 1507.4
A
B
Overlap Overlap
Eave
Ridge
Rake