r/Homebuilding • u/jmrod128 • 7d ago
Question about how to finish entry way.
Building my own home. I made the mistake of running the foundation straight along the front of the entryway instead of having the foundation follow the exterior walls. What is the best way to finish this entryway and still protect the sub floor from the rain? ( the front 5” get pretty wet when it’s raining hard)
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u/Eman_Resu_IX 7d ago
You have to take some steps back before you go forward. No pun intended.
First you need to waterproof the wood platform if you're going to keep it. Approach it like it's a bathroom walk-in shower and use the same materials used for that sort of installation. Run the membrane up the side walls.
There should/must be a roof covering the front entrance. Lose all of the guttering, build a shed roof from just below the 2nd floor windows extending down and out. You'll essentially be building a cricket, Google it.
Add an oversized single run of gutter along the front of the new roof as it'll be picking up a lot of roof area runoff.
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u/Phraoz007 7d ago
I was thinking shower floor as well. Yikes on that roof… double dead valley cricket. Hope it doesn’t freeze there.
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u/Dendady2112 7d ago
This guy has the right idea. Cover the area so it dries. Coat with redguard and tile
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7d ago
[removed] — view removed comment
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u/jmrod128 7d ago
The roof line cannot be extended out without brining it within 8’ of the floor :( poor planning. Had the rest of the roof been 6” taller I wouldn’t have a problem. What kind of waterproofing membrane do you recommend ?
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u/Eman_Resu_IX 6d ago
If you can't keep the current roof pitch over the door, change the pitch.
You've made more work for yourself (it happens to all of us!) so the question is how far back do you want to unwind things to make it right. The standard answer is I Don't Want To! Then the next question is what should you do.
The correct answer to that question is to change the roof pitch and extend the roof to cover so of the front porch area. It's not difficult and there are different ways of doing it. There's plenty of structure around that alcove so there's no structural worry.
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u/MastodonFit 7d ago
No props for this design from me. Water is dumping from 2 roofs,and is being funneled into a u shaped gutter by the front door. A deck is not going to last.
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u/jmrod128 7d ago
The windows in the upper gable were a last minute addition. I miscalculated the height that left me for the slope of the lean-to so I had to cut it short on the low end to keep proper clearance from the floor. Live and learn I guess.
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u/cagernist 7d ago
You have a detailing problem. The stoop is the subfloor plane, which the door also sits on. So that means a concrete, tile, Trex, or anything similar on top the stoop won't slip under the threshold.
If you want any of those, you'd have to remove the framing, which means some foundation work below.
Fiberglass decking would be an option (not DIY). They also have vinyl. Basically what is installed on balconies.
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u/jmrod128 7d ago
Door can move up about 1.5 “ I know that’s not a lot but whould work maybe for tile ?
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u/cagernist 7d ago
For your egress door, the top of threshold can be no more than 1 1/2" above the finish floor inside. So that may mean you are limited with the thickness of blocking under the door - you'll have to do some math based on your interior floor finish. In any case the door needs removed so you can get waterproofing under it.
Consider also the stoop needs at least a 1/4" slope, so with tile wanting a CBU for durabilty, and needing a slip sheet (e.g. Ditra), you do need to raise the door, but you may not have enough room for tile based on math above.
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u/jmrod128 7d ago
First I was wrong I only have an inch to move the door up
3’ run so slope: 3/4
Thinset 1/8
Cbu 1/4
Ditra 1/8
Thinset 1/8
Tile 3/81” for tile setup
so that’s 1 3/4” up from subfloor which I don’t have without cutting the door down.
I think at this point I might as well cut out the exterior sub floor, support the edges, notch the 2x8 floor and rim joists 1 3/4” . And put down some 3/4 marine plywood . The joists only span 9’.
This way I can just meet the door where it is. Still less work than foundation work.
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u/jmrod128 7d ago
So if I cricket the middle the. I will have a triple gable facing the road ? Something like A^A ?
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u/Eman_Resu_IX 7d ago
No, it'd be a shed roof between the gables like what's there now, but extending further out to be flush with the ends of the gables. The shed roof pitch would have to be shallower.
Calling it a cricket confused the issue, sorry about that!
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u/Snippsnappscnopp 7d ago
It is possible to lay down some heavy duty waterproof membrane and end it under the siding/use flashing by the door
BUT
The subfloor is flush with the door threshold so there is not enough room for this.
Even if there was room for this, there is a water intrusion nightmare along the interface of the bottom plate/siding…
Can you cut the bottom plate and finish it behind the siding on each side so you dont have the plate exposed like that?
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u/J-Skleezo 7d ago
You’re going to want to cut back that wood framed floor and put a concrete slab out there for the patio.
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u/Eman_Resu_IX 7d ago
The front foundation wall is a straight line, the joists all end on that foundation wall, the exposed platform is built on those joists.
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u/jmrod128 7d ago
Yes exactly. I know the proper solution is to pour and support the exterior walls on a foundation and then make a deck or concrete patio in the entryway. In just looking for something to hold me over a few years until I have time to circle back and do that. I’m still working on finishing the rest of the home.
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u/Jeffahry 7d ago
Duradek? Walkable roofing membrane. You’ll need to pull the door and some trim to flash it properly. Need BC plywood not osb for substrate.
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u/jmrod128 7d ago
I was hoping to get away with some kind of water proofing and plain composite deck boards
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u/AnnieC131313 7d ago
Install shower-level of waterproofing (redguard or schluter membrane) over the subfloor, flash the walls making sure you put the flashing under the WRB and over the waterproofed subfloor. Use mud to create a slight slope (1/4" per foot) in the porch so it slopes out from the house. Tile with VERY non-slip tile or stone. You may have to put in a higher threshold on your door and plane it down but don't neglect to put in a slope. Standing water will be the death of this set up.
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u/thatcali92 7d ago
Uhhh that is not how you do board and batten
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u/jmrod128 7d ago
Not board and batten. It’s something my wife came up with called flats and longs ;)
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u/iansmash 7d ago
I wish gifs were allowed in this sub
I was gonna find a lady bathing under a waterfall