[Greenbuilding] Circa 1766 (terra cotta) roof shingles

[Alan Abrams]

>  I would add that although clay tiles are very durable, at least in
>> Germany they don't typically last 250 years.
>>
>
> I doubt that they would last one winter here in Kanata.


along the upper reaches of 16th Street (which leads to the White House, 5
or so miles to the south) there are a number of houses built in the early
20th century capped with terra cotta or other clay tiles (colors range from
flower pot to lichen green).  Not to compare the Washington, DC climate
with Ontario, it's not uncommon (or at least in the recent past) for temps
to drop below 10d F at night during winter.  I'd eyeball the typical roof
pitch of these homes at >9:12.

Alan Abrams*
**certifed professional building designer, AIBD
certified passive house consultant, PHIUS*
*certified passive house builder, PHIUS**
*Abrams Design Build LLC
*sustainable design for intentional living*
6411 Orchard Avenue Suite 102
Takoma Park, MD 20912
office  301-270-NET- ZERO (301-270-6380)
fax      301-270-1466
cell     202-437-8583
alan at abramsdesignbuild.com
www.abramsdesignbuild.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/greenbuilding_lists.bioenergylists.org/attachments/20130313/2b633a4e/attachment.html>