On Sun, Jun 29, 2008 at 11:22 PM, <pethier@comcast.net> wrote:
> I am putting corrugated fiberglass panels up as a cover over a deck. I
>bought the thickest white ones my local Menard's carries. The finished roof
>will be about 17 x 8 feet. This is a simple shed-style roof, with water
>draining down the corrugations at a 16-degree angle to a (wavy) drip edge.
>
> Each panel is 8 feet long, and covers 2 feet wide when overlapped one
>wavelength. I have corrugated strips of wood which purport to match the shape
>of the fiberglass. The concept is that one drills a hole through the top of
>the wave and put a pole-barn screw (with built-in rubber washer) through the
>top of the wave, through the corrugated strip and into the wood crosspiece
>below. I have four such crosspieces.
>
> My question is: How many screws do I need across each panel?
>
> If I put them three across, that would be a dozen screws through each panel
>(the overlap section would mean that two panels share the four screws on the
>edge). Is this enough?
>
> BTW, I don't intend to cut any of these panels. The panel length should be
>correct, and I will make the width come out correct by overlapping more than
>one wavelength.
We've got panels like this as "windows" in the pole barn. They're on
the vertical walls, so they don't have to support a snow load.
They're a bit bigger than yours, 8' X 30", I think. They've got
three supports, each with three screws through it. (At least, that's
how the row at eye level is done. There's another one on the north
wall way high, and I can't see the screws from the ground. )
--
David Scheidt
dmscheidt@gmail.com
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