Home Page link

How to do form a concrete overhang?

Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
How to do form a concrete overhang? MiamiCuse 06-26-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by MiamiCuse on June 26, 2008, 12:43 am
Hi I have a question on the best way to form a small section of concrete in
an overhang area. It's probably easier to see a picture so here goes:

http://i173.photobucket.com/albums/w67/143house/courtyard/window.jpg

It's an existing concrete block wall, I have installed a new window and
above the window is the tie beam and there is a soffit and roof structure
above the window.

Where I labeled the word "Here" is where I am having trouble. I need to
form a strip of concrete overhang along the top edge of the window, over the
wood framing. I need to do this because there are three other equivalent
size existing windows that looks like that along that wall so I need to
match it.

I can see screwing a 2x4 along the bottom edge of that concrete, do I just
then scoop concrete into the slot until it fills up and finish it flat?
Seems this would be difficult to do I remember last time I was doing this
there were more spillage on the ground then there is in that narrow space.

Someone mentioned to me to have a piece of wood at the bottom, then spray in
those foam to fill up the space, not all of it but most of it, then use
concrete to fill in the rest?

Thanks in advance,

MC



Posted by Mike Paulsen on June 26, 2008, 1:26 am
MiamiCuse wrote:
> Hi I have a question on the best way to form a small section of concrete in
> an overhang area. It's probably easier to see a picture so here goes:
>
> http://i173.photobucket.com/albums/w67/143house/courtyard/window.jpg
>
(snip)

Think stucco rather than concrete. You'd frame it with wood to within
1/2" or 3/4" of the finished dimension and then install casing bead,
corner bead, and lath (if necessary).

Pay close attention to construction details (weather barriers, flashing,
etc.) to ensure that moisture is handled properly.

Posted by Rudy on June 26, 2008, 2:34 pm


> Where I labeled the word "Here" is where I am having trouble. I need to
> form a strip of concrete overhang along the top edge of the window, over
> the wood framing. I need to do this because there are three other
> equivalent size existing windows that looks like that along that wall so I
> need to match it.

To "match" the existing..what is the surface coating above the existing
windows..Painted concrete ? Stucco ?
Can you use foam 'block' material they use for stucco bump outs: attach,
then texture (stucco) and paint to match ?



Posted by EXT on June 26, 2008, 5:16 pm
I am sure that your other windows don't have a solid concrete feature.
Besides concrete over wood -- bad news as moisture in the concrete will
cause rot.

As others have suggested, you need to consider stucco and stucco techniques.

> Hi I have a question on the best way to form a small section of concrete
> in an overhang area. It's probably easier to see a picture so here goes:
>
> http://i173.photobucket.com/albums/w67/143house/courtyard/window.jpg
>
> It's an existing concrete block wall, I have installed a new window and
> above the window is the tie beam and there is a soffit and roof structure
> above the window.
>
> Where I labeled the word "Here" is where I am having trouble. I need to
> form a strip of concrete overhang along the top edge of the window, over
> the wood framing. I need to do this because there are three other
> equivalent size existing windows that looks like that along that wall so I
> need to match it.
>
> I can see screwing a 2x4 along the bottom edge of that concrete, do I just
> then scoop concrete into the slot until it fills up and finish it flat?
> Seems this would be difficult to do I remember last time I was doing this
> there were more spillage on the ground then there is in that narrow space.
>
> Someone mentioned to me to have a piece of wood at the bottom, then spray
> in those foam to fill up the space, not all of it but most of it, then use
> concrete to fill in the rest?
>
> Thanks in advance,
>
> MC
>


Posted by on June 26, 2008, 7:00 pm
On Thu, 26 Jun 2008 17:16:36 -0400, "EXT"

>I am sure that your other windows don't have a solid concrete feature.
>Besides concrete over wood -- bad news as moisture in the concrete will
>cause rot.
>
>As others have suggested, you need to consider stucco and stucco techniques.

That was my thought. They just stucco over foam bands for all of those
architectural features in the "House of Zorro" homes that have taken
over South Florida.

Similar ThreadsPosted
Walkmaker concrete form question August 15, 2007, 10:16 pm
FF 1.5 Form Manager December 9, 2005, 2:24 pm
Invitation to Join Tax Form August 29, 2006, 10:56 am
Post-form formica countertops with no backsplash? January 8, 2009, 11:36 am
Porch Overhang material September 7, 2005, 1:31 am
Insulating a cavity on an overhang September 13, 2006, 10:32 am
Replace tar roofing on overhang? March 24, 2008, 7:41 pm
Island Overhang Problem July 8, 2008, 1:13 am
Island Overhang Problem July 8, 2008, 9:42 am
Supporting overhang in front of house October 10, 2006, 7:24 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap