[Greenbuilding] Insulatin over existing exterior siding

[ErgoDesk]

1. She should look under that siding and also take some photos if She wants
a better answer.
2. If you want the wild solution it would be to insulate from the outside,
but that could possibly Rot the entire house prematurely.
3. Insulate from the inside, but this needs careful planning in difficult
areas and will probably cost the most.
4. Even the experts will find a thousand ways to get it wrong, you pay for
every one of those errors.

Sincerely,
George Hawirko
Ph: 604-477-7897
*http://about.me/StyroHome <http://about.me/StyroHome>*


On Wed, Dec 27, 2017 at 5:03 PM, Lynelle Hamilton <lynelle at lahamilton.com>
wrote:

> Posting for a friend.
>
> She is extensively renovating a 1960's bungalow with no insulation and air
> leaks.  Existing exterior is aluminum siding, likely over clapboard. She
> has not pulled any siding to see if there is clapboard under the aluminum.
>
> Location is Hamilton, Ontario.
>
> She wants to seal, insulate and apply new siding and install new windows.
> Windows will use some existing openings and add others. Some openings may
> be closed or reduced. She plans to strip the aluminum, but has had
> conflicting opinions on whether to strip any clapboard underneath.
>
> Told her I'd tap the expertise of this group!
>
> Thanks in advance,
>
> Lynelle
>
>
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