Hey all,
I've been researching under-deck drainage for some time. I have a simple 16' x 20' deck and am finishing the underneath to support a paver patio and a shed.
I've decided against systems like dry-snap and underdeck because they cost about $8/ft installed and $3-6/ft in parts. My wife nixes the idea of sloped corrugated panels as being unattractive.
I came across this solution, which seems like a nice one:
http://www.deckmagazine.com/article/33.html
The deck is old and the boards are in bad shape, so pulling them up and laying new boards isn't an issue. The deck itself is flat, so something that puts the grading between joists is attractive, especially since we were hoping to not lose height under the deck (we have some taller things to put in the under-deck shed).
But I have a few questions and am hoping someone can help me out here:
1. All I can find around here (Ellicott city, MD) is EPDM liners. Is a 45mil EPDM liner as good a product as a polypropylene geomembrane?
2. The deck has two sets of steps with a ~ 4'x4' landing between them. I am considering just laying EPDM flat over the steps and landing w/o drainage. Is that a terrible idea? Not really sure where I would drop a gutter for steps.
3. Would likely wind up with an aluminum siding as the "ceiling" under the deck. Perhaps a fiber cement board. Any other good options?
Again, I've spent a few days searching this and other forums, but would welcome any additional advise here. Thanks in advance!
-Ed
I've been researching under-deck drainage for some time. I have a simple 16' x 20' deck and am finishing the underneath to support a paver patio and a shed.
I've decided against systems like dry-snap and underdeck because they cost about $8/ft installed and $3-6/ft in parts. My wife nixes the idea of sloped corrugated panels as being unattractive.
I came across this solution, which seems like a nice one:
http://www.deckmagazine.com/article/33.html
The deck is old and the boards are in bad shape, so pulling them up and laying new boards isn't an issue. The deck itself is flat, so something that puts the grading between joists is attractive, especially since we were hoping to not lose height under the deck (we have some taller things to put in the under-deck shed).
But I have a few questions and am hoping someone can help me out here:
1. All I can find around here (Ellicott city, MD) is EPDM liners. Is a 45mil EPDM liner as good a product as a polypropylene geomembrane?
2. The deck has two sets of steps with a ~ 4'x4' landing between them. I am considering just laying EPDM flat over the steps and landing w/o drainage. Is that a terrible idea? Not really sure where I would drop a gutter for steps.
3. Would likely wind up with an aluminum siding as the "ceiling" under the deck. Perhaps a fiber cement board. Any other good options?
Again, I've spent a few days searching this and other forums, but would welcome any additional advise here. Thanks in advance!
-Ed