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Posted by neilr on November 10, 2006, 3:51 am
> yea its kinda hard to say
>
> there are 2 different methods
> one is a foam that expands and fills the area
> Personally i dont like that stuff because then the wall is solid foam
> and you can never run wires or pipes without tearing iit apart
>
> but there is the fiberglass and celulose material that can be blown
> into walls. It is a good choice if you dont already have insulation
> but it usually requires a hole at the top and bottom of the wall
> so that pressure can excape as the wall is filled
>
> going through the plates of the wall which are the horozontal
> top and bottom parts of the wall is not pratical for many reasons
>
> first lumber isnt supose to have that large a hole cut in it and if you
> do cut a hole for a pipe then the rest of the plate is still in tact
>
> if you are putting holes every 16 inches in the plates then you
> will tare apart the structure of your house and a good wind
> or snow will blow it over
>
> so i am not really sure what the best method for you is but you can
> bet that many people in your area have had the exact same thing
> done to their homes.
>
> so contact someone that has done it before and ask if they can
> let you go see a house they did it to. Or ask some neighbors
>
> they can put holes on the inside or outsides of buildings and if you
> have stone then you are more limited.
>
> Its not rocket science but you do need skill to do it cleanly
>
> I would worry most about getting the area right arround the
> window sealed and for that you can use either foam in a can
> or stuff the area with fiberglass insulation
>
>
> bob marencin
>
>
>
>> Hi folks,
>>
>> I am thinking of replacing all of my windows and just wonder if instead
>> of having holes drilled all over my harled walls, is it possible or
>> feasible to have the insulation blown into the cavities when the old
>> windows are removed. Or perhaps could I get access to the cavity via the
>> loft - is the cavity wall insulation material sprayable so that it could
>> be done this sort of way? Just trying to plan ahead.
>>
>> Neil
>>
Bob, thanks for your thoughts. As I suspected I don't think there is a
simple alternative to drilling holes all over the outside walls. Rather
annoyingly the house underwent major (interior) renovation just a year ago.
If we had thought about it then, we could have had it drilled/injected
through the inside walls. There are a lot of housed in the area who have
had this done, but all seem to have it installed through drilling the
outside walls. I thought it might be useful to ask here first, for
alternatives before speaking to the insulation companies. I will also
investigate the fibreglass alternative.
Neil
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