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Garage expansion Help needed

onempty

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Feb 16, 2009
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38
Well, I just bought a new place and I am wanting to add a covered area to my existing garage. In the pic below you can see that there is a large space next to the garage that already is paved. I want to extent the roof of the garage over that area but not enclose the space, just be covered. What is the best way to go about this?

Thanks
John



plans.jpg
 
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dipper

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Jun 27, 2007
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Rochester, NY
almost exactly like you pictured. You'd need to put some posts into the ground
to support the roof as it goes over the concrete pad. A car port is what it's usually called.
You'll have to dig up the area around the concrete pad to be able to sink the posts down
to the frost line. Where are you located?
 

Kevin54

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Basically what you are wanting to do is the same as building three sides of a pole barn. Where you really have to concentrate and spend a little time and money is in the roof. You want to make sure the trusses or rafters are lined up exactly with your existing roof and tied back in far enough so that both the existing roof and the new roof blend together without seeing a hump where they are joined. This would consist of going back into your existisng roof by a couple of trusses or rafters, tearing off the shingles, tearing off the sheeting, then sheeting it all together by staggering the panels, then reroofing it. Some would just **** the ends together then blend in the shingles. Doing this make it definately look like something was added on.
 
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onempty

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Can I use the metal footing that bolt to the concrete then the support posts sits in it and is bolted in. That way I don't have to cut holes in the concrete to put the support post?
 
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Falcon67

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Merkel, TX
But, I might make the roof a bit lower si it fits under the eave of the original roof.

You may then have issues with water damage to the soffit and frieze boards, facia and eves. You'd have to leave enough room in there to get up in the eve for maintenance. And if you shrink the roof under the existing one, it'll be shorter (closer to the ground) at the eves unless you cut it back some and either way it'll look a bit "off".

If you **** the ends of new decking, at least build a "T" rafter/truss with the proper rise/run that will run down that entire seam and allow you to tie both together flat. Stagger decking would be mucho better and well worth the effort. Keeping the roof continuous in any case will look better IMHO.

Can I use the metal footing that bolt to the concrete then the support posts sits in it and is bolted in. That way I don't have to cut holes in the concrete to put the support post?
Unless I knew the slab construction real well, I'd bust through and put proper footings. The addition could be in the 8000~10000 lb range when all done. You might save some hassle by using 6x6 corner posts on footings then using a good stud wall and a plate down the outer wall. Better to consult a pro on that whole thing. I would not try to stand it on a couple of 4x4s - you'll hit one and then it'll all be on YouTube.
 
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knudsen

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Cobblers Knob, IN USA
It will also be easier, faster and look better if you make the roofline even with the original. The only drawback would be getting matching shingles without re-roofing the whole thing. Also be nice not to have another downspout. You can get a new end for the downspout you have and shoot it out away from both structures, if you want to avoid moving it out to the end, but moving it would be best. That should be a very nice setup!
 
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onempty

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Feb 16, 2009
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So, how is the best way to find someone that would do a good job and not **** me. Do I just look up contractors in the yellow pages?
 

OccupantRJ

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Eastern North Carolina
Make it a solid part of your contract or agreement that the two roof lines will match precisely. Some people will say that "it's a 4/12, I can tell". Make them measure the pitch to match or you may be sorry you did not. Looks like **** when it does not match. I see this all the time with add-ons of this type. When the original trusses were made, who knows if the jig table was set up to spec?

RJ
 
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