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-   -   When to tear down wall for bump out/addition? (

Jennifer14 04-09-2014 05:45 PM

When to tear down wall for bump out/addition?
Just in the very beginning of research here, obviously, but if I want to build an addition (bedroom) onto the back of my house, at what point does the back wall of the house get its siding torn off, etc., to change it into an interior wall: before the addition is built or after or somewhere in the middle?

In the same vein, if we bump out a room, at which point does that exterior wall come down? After the addition is already built?


inspectorD 04-09-2014 05:51 PM

Welcome aboard Jennifer14

It really depends on the entire job and the siding. If you have wood siding we usually remove the siding up to where the addition will be put on, then add an inside corner board to install the new siding against.
Vinyl siding just gets removed from the entire area, then reinstalled once it is frame built.
You have to figure out how to tie in the weather barrier like Tyvek also.
These types of things are usually left to the pro's, but they are certainly DIY if you have a good working knowledge of framing and siding.

We will sometimes leave the wall up and take it out at the end. That way you can keep much of the weather out.
It really depends on your contractor and their skill level.
Hope this helps, just my opinion.

Jennifer14 04-09-2014 05:58 PM

Thanks for such a quick & helpful response, InspectorD!

nealtw 04-09-2014 06:00 PM

Welcome to the site. A lot depends on the house itself. You try to leave things tight as long as possible. Most times you can keep most inplace until you get the roof on and windows ready to put in.
If you want to selvage old siding you may want to remove it ealier but a little house wrap will keep the weather out. Most times you would just open enough to get the foundation attached and level with the old one. And depending on roof design and wall removel a beam may have to be installed sooner rather than later.

Jennifer14 04-09-2014 06:04 PM

Also very helpful, Nealtw. I really appreciate it. What a great forum :-)

nealtw 04-09-2014 06:07 PM

Will this be diy or contractor work?

Jennifer14 04-09-2014 06:20 PM

Well...I have a structural engineer friend who can help out and he knows a couple of guys who've helped with building additions before but they're not licensed contractors, then we were thinking of just hiring some other workers (like college students?) to help. Does this sound feasible or like a disaster? (Are you laughing hysterically?)

CallMeVilla 04-09-2014 06:44 PM

Where you live is crucial. If you have a lot of bad weather, this could get touchy. If you live in Southern California, where it hardly rains, the fear factor is not as great.

The demolition and framing stage can go fast ... meaning a couple of days with a full crew who knows what they are doing. But that is rough framing only ... If you are trying this as a DIY, you should get help at this stage.

BUT, before you can frame, you have to have the foundation ready.

Foundation work and framing require permit checks. Your home insurance will invalidate your coverage if you ever have a problem with an unpermitted add-on. So, bite the bullet and do this properly. Same goes for new electrical ... and you're just getting started ...


nealtw 04-09-2014 07:09 PM

Villa: I found the first one interesting, can I come and work in Cal. Please. All day for 4 or 5 guys to build level footing no mud no steps no steel really.

Jennifer14 04-09-2014 08:04 PM

Villa: I live in N. CA, drought territory. When you say, "This could get touchy," are you referring to when the walls should come down or the idea of using a patchwork crew made up of a structural engineer and a few guys of varying and limited experience?

Great videos, thanks.

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