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cphillips
Under Deck Ceiling

We have a walkout basement that leads to a stamped concrete patio underneath our deck. What is the best inexpensive underdecking that I can purchase and install myself?

Debra
Re: Under Deck Ceiling

pvc boards, metal sheeting, plastic roofing with a gutter on the far edge

Ernie_Fergler
Re: Under Deck Ceiling

I have seen two different products on the market that will do just that. Both were PVC, but sorry not inexpensive.
Can't recall either product name, but it might just be on that world wide web I've heard so much about...:)

canuk
Re: Under Deck Ceiling

Or you could look at soffit material ... aluminum or vinyl.

Ernie_Fergler
Re: Under Deck Ceiling
canuk wrote:

Or you could look at soffit material ... aluminum or vinyl.

Most people will get annoyed at the occasional dripper.
Even if you tell them in writing it will happen.
But I agree it is a great choice when cost is an issue.:D

007builder
Re: Under Deck Ceiling

I thought I might attempt to use 12" wide solid vinyl soffit. I have a 12' x 20' deck, and soffit conveniently comes in 12' sections. First, I would rip some 2x4s into pieces of varying thickness. I would attach them to the underside of the deck running perpendicular to the joists (parallel to the house). The thinnest one would be closest to the house, and the thickest one would be furthest away. They would be spaced about 2' apart. This is to create a slope away from the house. The soffit pieces would be installed parallel to the joists (perpendicular to the house). The soffit would collect the rain and drain it into a gutter on the low end, away from the house. I figure it might cost between $200 - $300 for my 12'x20' deck. I'm hoping that when things fall through the deck, I should be able to pry the soffit pieces apart to clean out the area above it."
"As for my soffit idea, it is possible to pry the pieces apart and let them "flop down" for cleaning and access to the space above them. I was thinking of attaching them with screws instead of nails to allow them to be completely removed if necessary."

This would be cheaper than $6.50 a square foot for something like the underdeck system. Of course, mine might not work as well.

bigbluewildcat
Re: Under Deck Ceiling

007Builder,

I, too, have been considering the use of vinyl soffit for the under deck drainage application you mentioned. Could you advise whether you tried it and what the results are? My job is a new one and I have even contemplated using wider joists and tapering them to acheive the slope. Your further comments would be appreciated.

Re: Under Deck Ceiling
007builder wrote:

I thought I might attempt to use 12" wide solid vinyl soffit. I have a 12' x 20' deck, and soffit conveniently comes in 12' sections. First, I would rip some 2x4s into pieces of varying thickness. I would attach them to the underside of the deck running perpendicular to the joists (parallel to the house). The thinnest one would be closest to the house, and the thickest one would be furthest away. They would be spaced about 2' apart. This is to create a slope away from the house. The soffit pieces would be installed parallel to the joists (perpendicular to the house). The soffit would collect the rain and drain it into a gutter on the low end, away from the house. I figure it might cost between $200 - $300 for my 12'x20' deck. I'm hoping that when things fall through the deck, I should be able to pry the soffit pieces apart to clean out the area above it."
"As for my soffit idea, it is possible to pry the pieces apart and let them "flop down" for cleaning and access to the space above them. I was thinking of attaching them with screws instead of nails to allow them to be completely removed if necessary."

This would be cheaper than $6.50 a square foot for something like the underdeck system. Of course, mine might not work as well.

I've done the exact method you've described - only slightly different.

What I've done was also bend a piece of metal at the furthest point away from the deck to act as a rain gutter. Just as you would underneath soffits. Except, I didn't stop at just bending a 90 degree, I also put a slight 10 degree up bend to catch the rain.

Re: Under Deck Ceiling

Thats a great idea deckbuilder!

Wylie
Re: Under Deck Ceiling

Hey Guys, I'm so glad I found this thread. I been trying to figure out how to keep the paver patio under my deck dry so I can stack my firewood there for the winter.
Without spending 2,00.00 I don't have. :)
How are you attaching the soffit material to the joists. Are you using a j channel like they say for a standard application?
I've never done any work with soffits and siding so I apologize if this is something obvious.
Also how are you hanging the gutter at the end?

salshouse
Re: Under Deck Ceiling

I have just started my project using 12"w soffit. I cut strips from treated lumber as described above (my joists are on 16" centers so I needed strips to mount the soffit to). I am attaching with deck screws and using small washers so the soffit slots don't slip over the head. I am nervous though. Both my brother and father-in-law don't think it will work. They don't think it will hold the weight of ice build up in the winter. I ran strips on 18" centers, so I will be putting in 9 screws per panel. I am now planning on looking for some white washer or wafer head screws to put in the concave area in the center of the panel to help support the weight.
I'd like to hear from anyone else who has done on how it held up throught the winter.
My biggest challenge is going to be putting in the gutter. The support posts are pushing the gutter in board 4", creating 4" of unfinished area, will detract greatly from the aesthetic. Plus the gutter is down approx 3" from joists (to create pitch for runoff). The gutter is not designed to fit where I need it to go.
Does anyone have photos of how the gutter was installed and finished off? I have some ideas for bending alum coil, but reading that it may not go well with treated lumber. I thought this was going to be relatively straight forward. Fustrated right now, because I have to figure out the gutter before hanging the soffit - no room to install after.

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