[Greenbuilding] Advice for a Rehab Newbie

Lynelle Hamilton lynelle at lahamilton.com
Thu Apr 28 20:16:01 CDT 2016


Hi Stephen,

No issue of flooding, so the slab is OK. It is a high water table 
thing.  Will definitely use the Roxul board...thanks for the reference.  
I used high density roxul in the last house (in Durisol blocks).  Easy 
to work with, albeit gritty.



On 2016-04-28 2:07 PM, Stephen Collette wrote:
> Hi Lynelle,
>
> I’d recommend Roxul Comfortboard IS for outboard of the sheathing. I 
> used it myself last year, and it’s excellent, and with 2 3” rigid 
> boards, you can get to the R-40 range easy enough. No trusses needed.
>
> Is flooding a remote concern? I agree with Joe that slab on grade is 
> better, but not if flooding may occur. If you can’t put a basement, 
> maybe you can’t put a slab, or is it a water table issue?
>
> GreenTerraHomes, I’ve seen them, and read some stuff, but haven’t 
> looked at their products up close and in detail. Nice and local for 
> sure for both of us, but that’s all I know.
>
> Stephen
>
> Stephen Collette BBEC, LEED AP, BSSO
> */Your Healthy House/* - Indoor Environmental Testing & Building 
> Consulting
> http://www.yourhealthyhouse.ca
> stephen at yourhealthyhouse.ca <mailto:stephen at yourhealthyhouse.ca>
> 705.652.5159
>
>
>
>> On Apr 28, 2016, at 2:00 PM, 
>> greenbuilding-request at lists.bioenergylists.org 
>> <mailto:greenbuilding-request at lists.bioenergylists.org> wrote:
>>
>> From: Lynelle Hamilton <lynelle at lahamilton.com 
>> <mailto:lynelle at lahamilton.com>>
>> To:Greenbuilding at bioenergylists.org 
>> <mailto:Greenbuilding at bioenergylists.org>
>> Subject: [Greenbuilding] Advice for a Rehab Newbie?
>> Message-ID: <57216882.2010909 at lahamilton.com 
>> <mailto:57216882.2010909 at lahamilton.com>>
>> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>>
>> Hello Listers
>>
>> I am on the third house and hope I can impose with a few questions to
>> those who've much more experience than I. I've only built from scratch,
>> so have no feel for the following.
>>
>> 1. What has been your experience with raising and extensively rehabing
>>    (new windows, insulation, sealing, etc.) a cottage. I'm considering
>>    a lot that has an existing cottage that may be usable as a second
>>    story "shell".  The existing structure is on piers, with reasonable
>>    air circulation underneath, so may be structurally viable.  it's 40'
>>    x 18.5'.  It has no insulation and the windows are old single glazed
>>    and damaged. Siding is crappy looking but not rotten...I'd likely
>>    replace it as part of the insulation/sealing.  Interior walls are
>>    hardboard or plywood and would go. I'd likely larsen truss the
>>    exterior and insulate to R-40
>> 2. Which is best: insulated slab on grade or an insulated crawl space?
>>    The conservation folks (and I agree) will not allow a basement, due
>>    to the water table.
>> 3. Because of the time of year and my ability to find reliable folks to
>>    work, I'm considering using a prefab shell.  I care that any
>>    structure I use is well-sealed and insulated (walls R-40)  Has
>>    anyone had any experience with GreenTerraHomes? Are there any others
>>    out there, or folks in the York/Durham Region who anyone knows are
>>    familiar with low energy construction
>>
>> MANY thanks for any advice you have!
>>
>> Lynelle
>
>
>
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