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HOW? - Frame for vinyl window in cement basement wall

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HOW? - Frame for vinyl window in cement basement wall Dave in Denver 07-18-2007
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Posted by valvejob on July 18, 2007, 10:33 am
On Tue, 17 Jul 2007 23:23:23 -0700, Dave in Denver

>I will have egress windows cut into my cement basement walls for a
>major remodel, will use a standard 48" x 48" slider or casement.
>
>Two contractors told me they simply frame the new concrete opening
>with 2 inch "green pressure treated lumber" and then set the window.
>There may be a bit more lumber for the header "to align with basement
>ceiling" or structural needs, but other than that all there will be is
>a single board between the cement and window frame.
>
>(FYI... my city does require an engineers document specifying any
>structural header needs in order for the city to give me a permit to
>cut two big holds in my basement wall. So that bit will be taken care
>of.)
>
>But just a single 2" board sounds too fast and easy. Is there a
>"proper" way or am I just use to doing things the hard way?
>
>Thx
>Dave-in-Denver

Could you post that 'engineers document' you refer to? I'd like to
see it.

You seem to have something in your head already about what should be
done. Tell us what you think.




Posted by PeterD on July 18, 2007, 1:55 pm

>On Tue, 17 Jul 2007 23:23:23 -0700, Dave in Denver
>
>>
>>(FYI... my city does require an engineers document specifying any
>>structural header needs in order for the city to give me a permit to
>>cut two big holds in my basement wall. So that bit will be taken care
>>of.)
>>
>
> Could you post that 'engineers document' you refer to? I'd like to
>see it.
>

I think what the OP was referring to is an engineer's report
certifying that the modifications are structurally sound. I'm sure
(but could be wrong) that the OP has not done this yet.

>

Posted by Dave in Denver on July 19, 2007, 2:37 pm

> Could you post that 'engineers document' you refer to? I'd like to
> see it.

Do not have engineers doc yet and of course I expect it to be detailed
about header requirements. But I will ask them also about typical
frame solutions too.
Thx

> You seem to have something in your head already about what should be
> done. Tell us what you think.

Well... not knowing what is needed is why I posted... but I thought
there would be some way of accommodating the weatherseal "fin" rather
than flat mounting the vinyl window directly on a single layer of PT.
Maybe something like a 1" PT layer next to the concrete (bolted/glued/
etc.) then a layer of 2x4 and 2x6 side by side with a 1/8" gap for the
"fin". And something like a "finish" or trim layer on top of that on
the inside. But, again, as you can tell.... I do not know what is
usual so I am asking people who know.

Thx
Dave-in-Denver


Posted by valvejob on July 20, 2007, 9:18 am
On Thu, 19 Jul 2007 18:37:15 -0000, Dave in Denver

>
>> Could you post that 'engineers document' you refer to? I'd like to
>> see it.
>
>Do not have engineers doc yet and of course I expect it to be detailed
>about header requirements. But I will ask them also about typical
>frame solutions too.
>Thx
>
>> You seem to have something in your head already about what should be
>> done. Tell us what you think.
>
>Well... not knowing what is needed is why I posted... but I thought
>there would be some way of accommodating the weatherseal "fin" rather
>than flat mounting the vinyl window directly on a single layer of PT.
>Maybe something like a 1" PT layer next to the concrete (bolted/glued/
>etc.) then a layer of 2x4 and 2x6 side by side with a 1/8" gap for the
>"fin". And something like a "finish" or trim layer on top of that on
>the inside. But, again, as you can tell.... I do not know what is
>usual so I am asking people who know.
>
>Thx
>Dave-in-Denver

You do good work.

I actually prefer your method although I suspect the window will
remain functional for 40 years using either method.



Posted by Dave in Denver on July 20, 2007, 2:14 pm
> >Well... not knowing what is needed is why I posted... but I thought
> >there would be some way of accommodating the weatherseal "fin" rather
> >than flat mounting the vinyl window directly on a single layer of PT.
> >Maybe something like a 1" PT layer next to the concrete (bolted/glued/
> >etc.) then a layer of 2x4 and 2x6 side by side with a 1/8" gap for the
> >"fin". And something like a "finish" or trim layer on top of that on
> >the inside. But, again, as you can tell.... I do not know what is
> >usual so I am asking people who know.

>
> You do good work.
>
> I actually prefer your method although I suspect the window will
> remain functional for 40 years using either method.

Well thanks. But it sounds like my method is just overkill.
We'll see if the engineer has recommendations and find the right
middle ground.

Thx all!
Dave-in-Denver


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