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Detached Patio Cover

Posted on 10/12/22 at 2:01 pm
Posted by Loup
Ferriday
Member since Apr 2019
11214 posts
Posted on 10/12/22 at 2:01 pm
I have a ~12' deep by ~18' wide uncovered slab on the back of my house. I'm wanting to cover it. If I tie in to the eave it will be pretty low. Has anybody here seen one of these "floating"? I could put a gutter on the eve under it. I'm trying to avoid messing with my roof if possible.

Something like below. My autocad license is expired so I apologize for the shitty drawing I did using a browser based cad program. The dimensions are nowhere close to correct so ignore them.

It'd have a simple metal roof and a fan under it. Nothing fancy.

Posted by Boudreaux35
BR
Member since Sep 2007
21420 posts
Posted on 10/12/22 at 2:05 pm to
Personally, I'd try and put the high end of the cover beneath the eave of the house if you can still get sufficient slope and height at the low end. Otherwise you have rain getting in under the cover....even with gutters.
Posted by Loup
Ferriday
Member since Apr 2019
11214 posts
Posted on 10/12/22 at 2:08 pm to
quote:

Personally, I'd try and put the high end of the cover beneath the eave of the house if you can still get sufficient slope and height at the low end. Otherwise you have rain getting in under the cover....even with gutters.



Good point, I'll measure it when I get home. I don't think it'll be high enough, though.
Posted by HunkeredDown
Baton Rouge
Member since Aug 2012
32 posts
Posted on 10/12/22 at 2:29 pm to
I built something just like this, 20x14, and rain water continued to be blown on the patio. I added some flashing as a barrier to prevent that.
Posted by rocket32484
Member since Jan 2008
1391 posts
Posted on 10/12/22 at 3:40 pm to
quote:

I built something just like this, 20x14, and rain water continued to be blown on the patio. I added some flashing as a barrier to prevent that.


Can you explain or show a pic of what you did? We have lots of rain getting into our outdoor space and the gutters really didn’t help.
Posted by Bayou
CenLA
Member since Feb 2005
36781 posts
Posted on 10/12/22 at 4:07 pm to
quote:

Personally, I'd try and put the high end of the cover beneath the eave of the house if you can still get sufficient slope and height at the low end. Otherwise you have rain getting in under the cover....even with gutters.

I'm looking to put something exactly like that on the outter area of my carport over the driveway.
If there's an existing gutter already in place how does rain still get in??? If it does it seems it would be pretty minimal.
Posted by Baers Foot
Louisiana Ragin' Cajuns
Member since Dec 2011
3541 posts
Posted on 10/12/22 at 11:29 pm to
This builder in Lafayette (Atkinson Creative Design) fabricates some T brackets that he ties into the roof (similar to what your drawing depicts). Can't find a good picture of it, but you can kind of see it on one of his photos of the patio on the right:

This post was edited on 10/13/22 at 12:36 am
Posted by Loup
Ferriday
Member since Apr 2019
11214 posts
Posted on 10/13/22 at 7:23 am to
That's kind of how I want mine to look except not that fancy. I live in a shack.

So he has a bracket that ties in to the eave instead of having 4 posts support it? I was kind of trying to avoid tying anything to the house in case a storm wants to rip it off but those look like a good idea.
Posted by bayouvette
Raceland
Member since Oct 2005
4717 posts
Posted on 10/13/22 at 8:48 am to
Cedar solutions has those too. I think they call them skylifts on their website. I can't see how you would get water in even with Gutters
Posted by Loup
Ferriday
Member since Apr 2019
11214 posts
Posted on 10/13/22 at 9:13 am to
quote:

Cedar solutions has those too. I think they call them skylifts on their website. I can't see how you would get water in even with Gutters



https://www.skylifthardware.com/

damn these are pretty cool. I wish I'd known about them a month ago before I replaced my roof.

Posted by hofman
The Parish
Member since Nov 2007
117 posts
Posted on 10/13/22 at 9:27 am to
I just finished a project exactly like that, but it's 23' wide and 39' long(along the side of the house). I do get some water in during a rain, but haven't tried a remedy yet. I have a gutter and it doesn't prevent water from coming in. I am planning to tie my into my house in order to stabilize it more. I won't tie it into the eaves, but into some of the carport beams under the eaves.
Posted by hofman
The Parish
Member since Nov 2007
117 posts
Posted on 10/13/22 at 9:31 am to
I thought about using the "skylift hardware" mounts but my contractor friend persuaded me to against it. I didn't want any "holes" in my roof. They definitely would make for a better look, not having to use any type of pole on the house side. I was able to position the poles on the house side so they don't really interfere with flow or space.
Posted by Boudreaux35
BR
Member since Sep 2007
21420 posts
Posted on 10/13/22 at 10:24 am to
quote:

If there's an existing gutter already in place how does rain still get in??? If it does it seems it would be pretty minimal.


You're going to get splashing unless the overlap is lengthy. Add in that went the wind blows from about 40% of the 360 degrees possible, the rain will be blown in. Maybe not just like being rained on, but definitely enough to drive you inside. I guess there would be some way to install flashing or screens to prevent but it seems like a big guess to do so.
Posted by hofman
The Parish
Member since Nov 2007
117 posts
Posted on 10/13/22 at 2:01 pm to
What he said above, it's not alot, but it's enough to keep things moderately damp/wet.
Posted by texn
Pronouns: Y'All/Y'All's
Member since Nov 2019
3496 posts
Posted on 10/13/22 at 3:52 pm to
Just a word of warning: 25+ years ago I owned a house with what was practically a detached carport, only the carport was technically tied to the house by two planks that connected the carport's eaves to the house's eaves. While my homeowner's insurance company was inspecting the house, the inspector told me my premium was going to be higher because the carport would be considered "attached" vs. "detached" because of the two planks which were purely for aesthetic purposes. I don't remember how much higher, but it was enough of an increase to make me get a ladder and cut off the 2 planks.

You might want to check with your homeowners' insurance agent to see if it makes a difference on your premiums.
Posted by Bayou
CenLA
Member since Feb 2005
36781 posts
Posted on 10/13/22 at 7:50 pm to
Insurance will vary
Posted by bayouvette
Raceland
Member since Oct 2005
4717 posts
Posted on 10/14/22 at 8:40 am to
yall should post pictures. I been working on ideas for a couple years now. planning on doing my slab early next year
Posted by Chad504boy
4 posts
Member since Feb 2005
166136 posts
Posted on 10/14/22 at 9:01 am to
quote:

You might want to check with your homeowners' insurance agent to see if it makes a difference on your premiums.



what that is doing is changing a "replacement cost" of your dwelling having the additional "attached" structure to the home.
Posted by Riverside
Member since Jul 2022
2291 posts
Posted on 10/14/22 at 7:09 pm to
It's also dealing with coverages - Coverage A would be anything attached to the structure, coverage B would be anything not attached (like fence, sheds). Most people have pretty low limits for coverage B, so it's actually advantageous to have it connected to the structure, imo, and have it be considered part of the dwelling.
Posted by trident
Member since Jul 2007
4745 posts
Posted on 10/14/22 at 7:45 pm to
I did this exact thing. You do hurricane clips to your existing rafters in roof, torch down roof over patio roof. You want at minimum 6’6” clearance when at the low end of patio roof. Have had mine 15 years, not problems. Survived2 direct hurricane hits.
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