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Wood Species Suggestions

 
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Old 09-15-2020, 01:11 PM   #1
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Wood Species Suggestions


Which natural wood species is likely to hold up the longest if it's close to the roof surface, like on 3/4" sleepers and not more? Ipe or something like that?

This is not my project, but a buddy and wife are looking to redo a roof deck (24 x 16 ish) over a flat roof above a kitchen bumpout. Existing was PT on sleepers over a tarpaper flat roof. It's a hot mess. They're having it redone professionally.
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Old 09-15-2020, 01:51 PM   #2
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Re: Wood Species Suggestions


I would use ipe on torchdown roof deckovers. I've seen production home builders use cedar, never really seen how long those would last.

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Old 09-15-2020, 03:43 PM   #3
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Re: Wood Species Suggestions


i put down some 4/4 x4 redwood for sleepers on a duplex walk out deck with redwood deck boards.

was there for 18 years before some meth head caught the place on fire.
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Old 09-15-2020, 04:49 PM   #4
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Re: Wood Species Suggestions


ipe ,just from using it and other projects others have done in my area it is not something i trust .when it decides to move it moves .splits ,breaks screws and warps and bows as it chooses .generally i see at least one of such problems on every project .that said ipe seems to be a name that refers to a bunch of hardwoods of the same family .maybe that would explain why some people have done gorgeous projects with it .do not like working with it ,even distroys carbide tools .the saw dust is poison .poison is poison even if it only taxes your immune system ,who needs that .

https://www.thedeckingsuperstore.com...king/thermory/ .might be more then one company making this .sure seems worth looking into .
i have been apart of several roof decks ,all using redwood .most in colorado . if they were built as panels that could be lifted of redwood was excellent in that the weight is much easier to handle .
does come down to what you have where you are .
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Old 09-15-2020, 05:02 PM   #5
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Re: Wood Species Suggestions


Roofer I used a lot would have put down the sleepers and put membrane right over them. If you needed penetration for posts, he'd wrap the posts as well.

No penetrations through the roof membrane If done that way.
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Old 09-15-2020, 07:39 PM   #6
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Re: Wood Species Suggestions


Quote:
Originally Posted by griz View Post
i put down some 4/4 x4 redwood for sleepers on a duplex walk out deck with redwood deck boards.

was there for 18 years before some meth head caught the place on fire.
We're probably not as dry a climate as you guys. About three years ago I replaced several PT boards and some railing, but it almost never lets go of the moisture. Now it's rotting out. I had warned him of that. Now it's time to spend real money on it.
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Old 09-15-2020, 07:42 PM   #7
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Re: Wood Species Suggestions


Quote:
Originally Posted by hdavis View Post
Roofer I used a lot would have put down the sleepers and put membrane right over them. If you needed penetration for posts, he'd wrap the posts as well.

No penetrations through the roof membrane If done that way.
Help me understand this. Wouldn't you be screwing through the membrane into the sleepers? Or is it a second layer?

Side note is that the existing 1 x 4 PT sleepers held up the best of everything. They were even reusable during the repair three years ago, and the deck was probably 15 years or more old.
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Old 09-15-2020, 09:10 PM   #8
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Re: Wood Species Suggestions


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Originally Posted by MarkJames View Post
Help me understand this. Wouldn't you be screwing through the membrane into the sleepers? Or is it a second layer?

Side note is that the existing 1 x 4 PT sleepers held up the best of everything. They were even reusable during the repair three years ago, and the deck was probably 15 years or more old.
No, it's attached to the posts and possibly ledger. Posts deal with uplift.
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Old 09-15-2020, 09:24 PM   #9
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Re: Wood Species Suggestions


Yes, it's a second layer forming a frame of sorts.
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Old 09-15-2020, 09:51 PM   #10
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Re: Wood Species Suggestions


TREX
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Old 09-16-2020, 06:23 AM   #11
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Re: Wood Species Suggestions


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Originally Posted by Dirtywhiteboy View Post
TREX
Sure, but they want real wood...the one that will hold up the longest. (And metal rails, wood top)
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Old 09-16-2020, 09:24 AM   #12
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Re: Wood Species Suggestions


I've actually had really good luck with Ipe and Tigerwood. Never only done 3/4" sleepers though. I try to make sure I have at least 1-1/2 inches so I can run a floating basket weave with 1x. Otherwise you are going to want to add vents underneath each bay.

Every sleeper closes off airflow to the bay next to it. That can cause problems. Tigerwood doesn't get as hot on the feet either but it is finicky in UV light so before staining the whole thing has to be sanded.

So if you can't get to 1-1/2" below, West Marine has some cool stainless floor scuppers that look really good.
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Old 09-16-2020, 10:40 AM   #13
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Re: Wood Species Suggestions


Most of mine were done on 3/4" sleepers .sometimes 2x lumber for sleepers .though the roof surface seems to always be slopped so sleepers were shimmed up or tapered . Generally not screwed down .Made in pallets or such .they could easily be raised up to clean under them and patch roof if needed.

Note previous post ,Deck head uses IPE with good results .Must be a reginal thing .
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Old 09-16-2020, 10:44 AM   #14
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Re: Wood Species Suggestions


Quote:
Originally Posted by MarkJames View Post
Sure, but they want real wood...the one that will hold up the longest. (And metal rails, wood top)
I thought they were sleepers?
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Old 09-16-2020, 10:49 AM   #15
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Re: Wood Species Suggestions


Quote:
Originally Posted by Dirtywhiteboy View Post
I thought they were sleepers?
I don't get it. Decking needs to be real wood, not Trex. Go back to sleep!
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Old 09-16-2020, 11:22 AM   #16
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Re: Wood Species Suggestions


Ok,, I have no idea what is a good wood for decks.
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Old 09-16-2020, 12:45 PM   #17
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Re: Wood Species Suggestions


Quote:
Originally Posted by Dirtywhiteboy View Post
Ok,, I have no idea what is a good wood for decks.
Or maybe even his definition of sleeper. Trex or a composite sounds like a good alternative to redwood or exotic. If edges are visible ... Run a sub skirt board that covers or mostly covers them - done.
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Old 09-16-2020, 04:10 PM   #18
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Re: Wood Species Suggestions


Real wood.....not the look of real wood, but real wood. They can't be the only ones out there.
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Old Yesterday, 11:01 AM   #19
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Re: Wood Species Suggestions


Quote:
Originally Posted by MarkJames View Post
Real wood.....not the look of real wood, but real wood. They can't be the only ones out there.
I don't have any clients who want fake wood.

Don't let them get talked into Massaranduba or Cumaru that close to the ground. It is fine elevated a bit but that close it goes south quick. Massaranduba also goes by the name "Abaco" if buying from Aljoma.

Make sure they use 5/4" as well. 5/4x4 you will have almost guaranteed success. 5/4x6 is a little more tricky but it is definitely better than 1x material.

Actually, there's a type of wood called "Itauba" that I've been curious about for a while. Very similar in look and feel to Ipe. Has these weird oil spots though. I found it to be incredibly stable when I did a test on it though. After it goes grey it's indistinguishable to Ipe. It was at a really good price too. Jatoba is another I'd like to try on a low ground deck. I've found it to be a pleasure to work with (as compared to Itauba or Ipe) and does well on vertical surfaces.

Just some musings I had while thinking about this. PM me and I'll get you in contact with a good sales rep.
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Old Yesterday, 11:02 AM   #20
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Re: Wood Species Suggestions


Have they thought about deck tiles at all? I did a huge one a couple years ago and it looks fantastic still.

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