Greenest EVER insulation! (It's also very cheap!)
- 0 carbon/embodied energy
- easiest installation of all
- comes when most required
- very very DIY friendly
- can be moved around
u guessed it ?
water ....ergg SNOW of course :)
I join a picture view from my first floor patio door taken on feb 28 2013 for your enjoyment
( for those southerns that think we don't have snow in Canada ...wait everybody thinks we have tons of it ?? damn .. )
On a more serious note,
i've designed my flat roof terrace on my own house to take advantage of the snow we have each year during the coldest phase of our winter in Quebec.
~1600 sq ft of flat ( epdm will be covered with pavers/stones arrangement in future ) ( slow sloped to 2 drains ) roof that has a 42" high parapet ( will end up being near 70" total with installation of security glass )
It retains all of the snow that falls in it, and during winter, a large part of it remains shaded.
since the last 3 years, i've averaged ~12" snow cover during December, ~24-36" janurary and ~24-40" during february months ...
Insulation on top of the steel deck is from R24 to R40 with the EPS sloped boards.
What should i expect to have as total insualtion with let's say 24" of snow ?
i know that snow doesn't have a steady insulation value as it differs from day to day, year to year..
some of it actually melts during hotter day to form an ice sheet under the snow on top of the membrane etc...
What do you think of my idea to use snow on the roofs ?
I plan on using this method on all of my future designs ( unless someone proves it to be worthless )
We've had quite of a bit of sub -20C temperatures this winter , more than the usualy 1-2 weeks of the beginning of february.
And i can tell you that the snow made had a serious impact on the heating system load time from beginning of december to the end of it ( wen't from nil to almost 20" of snow by Xmas this year .. )
even if the temperatures were very similar ..
Posted Thu, 03/07/2013 - 01:15
Edited Thu, 03/07/2013 - 05:21
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