[Greenbuilding] Bamboo Floor, Radiant Heat and Thermal Mass

[John Straube]

The OBC has a nice list of HDD. Oh, and Rob was quoting HDD in Fahrenheit not Celsius.  I think Ottawa is 5000 HDD.

On 2011-03-01, at 9:22 AM, John O'Brien wrote:

> Rob,
> 
> Mind if I ask where you get your HDD stats? http://ottawa.weatherstats.ca/charts/hdd-1year.html shows the last year as having approx 3600 HDD. 
> 
> I've been trying to find a solid number for the area as we plan on building over in Chelsea at the foot of the Gatineau hills soon.
> 
> J
> 
> On Tue, Mar 1, 2011 at 1:32 AM, RT <ArchiLogic at yahoo.ca> wrote:
> On Mon, 28 Feb 2011 21:33:29 -0500, kenn brown <kenn2536 at centurylink.net> wrote:
> 
> 
> In the winter our floor is cold, south glass wall in three rooms. Summer
> warm or hot. Climate Austin TX which is tropical to some of you.
> 
> 
> 
> In winter, our insulated floor slab (and living space) is warm. In summer it's cool.
> 
> No auxiliary heating in winter until late at night, if at all. No mechanical cooling in summer except for maybe 3 or 4 evenings during the Dog Days of summer.
> 
> Slab is exposed to direct gain in winter via equator-facing glass (no more than ~15% of floor area) and completely shaded from summer sun by appropriately-scaled overhangs. Super-insulated/air-tight construction.
> 
> Climate: ~8750 HDD/yr, which is frigid to some of you (but balmy to guys like Gordon in Edmonton Alberta)
> 
> Moral of the story ?  God and the Devil are in the details.
> 
> -- 
> === * ===
> Rob Tom
> Kanata, Ontario, Canada
> < A r c h i L o g i c  at  Y a h o o  dot  c a >
> manually winnow the chaff from my edress if you hit "reply"
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Dr John Straube, P.Eng.
Associate Professor
University of Waterloo
Dept of Civil Eng. & School of Architecture
www.buildingscience.com

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