- Polycarbonate Hardware
Questions----Quoting
& Ordering
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- Information below for Cap
Only System. See Base
& Cap for
this system.
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- • How
do I determine quantity of screws required? See Screw
counting for Cap Only
System & Screw
counting for Base & Cap
System.
- • Where
is Aluminum Tape used? Aluminum tape is generally used to seal
the channels of polycarbonate at the top edge of roof sheets and
top of gable end wall sheets. Flashing typically covers the top of
the roof sheets (see Lean-To
Ridge &
Freestanding
Ridge). The Corner
Trim covers the top of gable end wall sheets and the edge of the
roof sheets, at this transition. Use of the U-Profile in these
applications would prevent flush fitting of flashing or Corner
Trim. (see Roof
Corner). Please note,
some applications such as a patio roof that does not attach to a
structure may necessitate use of U-Profile at the top edge of roof
sheets. One may also have an application where the roof sheet
hangs over the side of the rafter edge. Here we suggest only
overhanging a few inches and use the U-profile to trim out the
side edge of the sheet.
- • I do not see vent tape in your drawings? Vent tape is typically used in U-Profiles of plastic that, not only yellow, but also fit loosely. Without vent tape these plastic U-Profiles allow bugs to enter. Our U-Profiles fit tight, vent tape not required. It is important to access our drawings and following these drawings carefully, should you choose to use our Install Systems. Using our components and misc. instructions from others will clearly lead to problems. No other company goes to the length we do to ensure a successful installation. Follow our guidelines to the letter and we ensure a quality installation. Plastic install components are junk. Aluminum will last, and you have a choice of colors.
- • Where
do I use silicone? Minimal use of silicone is required. See
drawings above for the areas we suggest using silicone. Silicone
may also be used at the interface of Freestanding
Ridge or
Lean-To-Ridge,
where two lengths of Narrow
Profile Cap meet and
where other Trim Components meet. Do
not use silicone under Narrow Profile Cap, except
at lower edge of roof.
- • How
do I determine quantity of silicone required? One tube of
silicone will produce 25 linear feet of 1/4" x 1/4" silicone bead. We sell clear, plastic compatible, 100%
silicone.
- • I
am building a large structure and would like to use 4 ft. on
center spacing, any recommendations? See
Framing
Guide in Adobe Acrobat. When using nominal 48" on-center rafter spacing, a neoprene spacer
should be placed at the center of the blocking. This will
eliminate bowing of the sheet (see Spacer
Page) and allow for
the movement of condensation past blocking. Select blocking lumber
with less height than surrounding frame material and set the
blocking back from the outer surface of the adjoining
rafter.
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