- Corrugated Installation
Notes:-->
Corrugated
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- -.
- Roof Purlin spaced
every 36" at ridge & gutter, 48" at mid spans.
- Wall Purlins (girts)
spaced every 4-5 ft.
- Overlap: When joining
sheets in a horizontal run, an overlap of one corrugation is
recommended and yields an overall coverage of 48" see
Sheet Joining. When doing a long roof, or vertical run, with more than 1
sheet, the upper sheet in the overlap should be in the up-wind
direction. If an overlap is needed in the sheet length, such as
this, we recommend a 6" overlap. Pop Rivets may be used to achieve
a even fitting and watertight joint. Position Pop Rivets every 12"
along the overlap.
- Sealants: Do not apply
sealants between overlapping panels, as this will cause unsightly
dirt streaks. Silicone may be used in areas where two sheets meet
at an angle, such as the intersection of vertical sheets and roof
sheets.
- Screws:
See
Screw Layout and notes
below to determine screw count.
- Ridge Flashing: To
seal the pitched roof from the elements, install a ridge cap. This
cap may be fabricated from sheet aluminum or galvanized steel.
Horizontal closures required when using sheet metal flashings.
See
Ridge Details
- Horizontal Closures:
These foam rubber closures should be used at the upper and lower
edge of the sheet (in heated spaces), to seal from the weather and
air infiltration.
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