Decks, Patios, Porches and Docks - Adding Porch to front of basic colonial
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Jackofalltradez
10-19-05, 12:44 PM
Front of house is basic: Door on centerline of house. One window to each side of door, and two windows on second floor.
I'd just like to know for future reference what adding a porch would involve. Proposed porch would have steps in center leading up to porch full frontal width, 7-8' deep. Roof over porch supported by standard 4"x4" posts and child-proof railing around porch. 1/4" per ft. slope for drainage. The "Waltons" look.
We are assuming vinyl siding here on top of WWII era wood shingles, southern New England location. Assuming typical condition of sub-wall and existing house floor joists this old.
-Jack
I'd just like to know for future reference what adding a porch would involve. Proposed porch would have steps in center leading up to porch full frontal width, 7-8' deep. Roof over porch supported by standard 4"x4" posts and child-proof railing around porch. 1/4" per ft. slope for drainage. The "Waltons" look.
We are assuming vinyl siding here on top of WWII era wood shingles, southern New England location. Assuming typical condition of sub-wall and existing house floor joists this old.
-Jack
lefty
10-19-05, 04:27 PM
If the porch is going to be concrete, then it needs to be sloped away from the house. 1/4"/ft. is a bit steep -- patios are generally done at 1" or maybe 1-1/2"/ft. in 10'. (1/4"/ft. is a plumbing drain!) It depends on how heavy of a rain you can get in a very short time.
If the porch is a wood (or composite) deck, then there is no reason to slope it at all. The water simply falls off of the edge of the deck boards. But you DO have to slope the grade under the deck away from the house.
Waht's involved is simply building a deck, or installing a tall stem wall around the perimeter, back filling it and pouring a slab. Depends on what material you want the porch to be.
If the porch is a wood (or composite) deck, then there is no reason to slope it at all. The water simply falls off of the edge of the deck boards. But you DO have to slope the grade under the deck away from the house.
Waht's involved is simply building a deck, or installing a tall stem wall around the perimeter, back filling it and pouring a slab. Depends on what material you want the porch to be.
Jackofalltradez
10-20-05, 07:58 AM
Nope. When I mentioned "The Waltons" I meant all wood - 'cept for the pilings of course.
So I guess scratch the deck slope, how much slope on the grade itself?
-Jack.
So I guess scratch the deck slope, how much slope on the grade itself?
-Jack.
chris8796
10-21-05, 11:51 AM
I would get an architech or at least some design software for this size of project. I'm in the planning stages of doing a similar project with my house. The slope of the roof will be limited by the depth of the porch and the second story windows. Its nice to get a feeel for what it will look like when its done. You'll probably need detailed drawings for a building permit anyhow.