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-   -   Wood or Ployethlyne closure strips for PVC corrugated roofing? (

SBay_ecologist 06-24-2013 12:29 PM

Wood or Ployethlyne closure strips for PVC corrugated roofing?
Hello All:

I have a lean-to pergola at the back. I am installing PVC corrugated roofing at the top.

There will be overhangs on both sides, vertical to the closure strips. At Lowes I saw wood and polye. closure strips ( and )

I am inclined to use wood all throughout the project: I really do not need 100% sealing, and wood give me better support.

Any comments?


bud16415 06-24-2013 12:44 PM

I don’t know what one is stronger. They both would need some structure below them for support so it’s just a matter of what look goes best with the rest of the design I would say.

WindowsonWashington 06-25-2013 05:39 AM

Whichever you choose, I would stay consistent.

I am not certain that the wood give you that much more structure in this case without seeing the two materials in person.

nealtw 06-25-2013 10:28 AM

The wood ones split and can mold up when they get wet, I've never used the plastic ones.

SBay_ecologist 06-27-2013 12:12 AM

Thanks for all the answers.

I think I will go with the wood ones. I painted some, so it won't hopefully mold. Here in California, mold is usually not much of an issue, anyhow.

I will also pre-drill so that the wood won't split.

I'll follow up if I run across any problems.


SBay_ecologist 07-04-2013 01:46 AM

Hello All:

Here is what I have found out so far:

- The wood ones do indeed split, even with predrilling. Fortunately, the split is localized. However, no telling if it would spread over time. The splits I have seen so far are length-wise.

The way it looks, the contour of the closure strip does not quite match that of the panels.

- The screws that they sell are a bit short (1.25"). I needed at least 2" ones in some places.

SBay_ecologist 07-06-2013 12:06 PM

Just uploaded three photos showing the finished project:

oldognewtrick 07-06-2013 12:15 PM

Al, do you have the roof from the house extending over the panel roof? Is so, how much?

SBay_ecologist 07-07-2013 08:46 PM

1 Attachment(s)
Actually the corrugated panel has an overhang over the roof just as it does over the patio.

See attached photo.

(If photo does not show, I will also upload it to: )

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