Under deck roofing

If it's outside and you walk on it (or if you can't until you repair it)
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kevm14
Posts: 15332
Joined: Wed Oct 23, 2013 10:28 pm

Under deck roofing

Post by kevm14 »

What?

My deck is one floor above ground level due to the walk out basement. I thought it would be nice if stuff under it was kept dry.

Palruf makes PVC corrugated roofing that will be ideal to install under, with a pitch to let water flow out.
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I measured and accounted for the proper overlap. Ended up buying five 8 footers and eight 12 footers.

The key is the pitch. To do that I used pressure treated 2x6s (total of 4) ripped to the right size on a table saw. I did 1/2" per 2 feet which should be adequate.
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To fasten them I used my favorite Deckmate screws with torx head. As a bonus, this will add some rigidity to the deck.

For the roof panels themselves I bought some exterior grade cabinet screws which have a nice washer head built in.

I plan to trim with tin snips which should be really easy.

This was just under $300 all in. Just need to finish...
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kevm14
Posts: 15332
Joined: Wed Oct 23, 2013 10:28 pm

Re: Under deck roofing

Post by kevm14 »

The last shim boards on the end of the 11 foot section of deck were a good 3 feet from the last. But I cut the same 1/2" extra so it wasn't enough of a pitch for my taste. I added a 1/2" strip and I feel better now. The pitch seems to be maintained correctly now.
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Really excited to finish this.

I may even repair the light next to the door. Wondering if the shelter will be good enough to only tarp the lawn tractor through the winter, rather than each time I use it. Driving rain will still get under there but it should be a lot drier.
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kevm14
Posts: 15332
Joined: Wed Oct 23, 2013 10:28 pm

Re: Under deck roofing

Post by kevm14 »

Making progress.
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kevm14
Posts: 15332
Joined: Wed Oct 23, 2013 10:28 pm

Re: Under deck roofing

Post by kevm14 »

Finished with Adam's help.
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It rained yesterday so I checked out how dry it was. Obviously since three sides are open, it doesn't stay dry to the edge, but it's still pretty good. Only a couple minor drips at different seams. I will probably wait until I am home during a downpour and really see how it is holding up. Then I may mark the areas that are leaking and caulk them, if it's really that bad.
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Fast_Ed
Posts: 550
Joined: Wed Oct 23, 2013 9:45 pm

Re: Under deck roofing

Post by Fast_Ed »

I've always wondered how this is done. Only other instance that I've seen used heavy duty canvas.
kevm14
Posts: 15332
Joined: Wed Oct 23, 2013 10:28 pm

Re: Under deck roofing

Post by kevm14 »

kevm14 wrote: I may even repair the light next to the door.
And I did.
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I picked this out fairly carefully at the store. This is as bright as I could find an LED lamp like this. I like the diffuse light. Each lamp angles independently. 26W for 2,350 lumens (box says 180W equivalent). This will be great for getting firewood, tractor stuff or whatever I am doing under the (now dry) deck when it is dark outside.

It was $100.
http://m.homedepot.com/p/Defiant-White- ... /205937629
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