Great points Catopsilia 
Skillion Roof (for Clerestory Windows) Builder advised it costs more???
(38 posts) (14 voices)-
PeterReefman
MemberPosted Sunday 1 Apr 2012 @ 12:14:01 pm from IP # -
In relation to hipped rooves Dubbo teacher said ..
"BUT you lose the option to vent the roof space from that end. (And whirly birds and eave vents couldn't compare with gable vents.) "But if you build using a dutch hip roof ,you combine the benefits of gable rooves and hip rooves and you DO have the option of using gable end vents .
Posted Sunday 1 Apr 2012 @ 7:49:14 pm from IP # -
GwenMorse
MemberDamnthematrix said:
I built my own house with skillion/clerestory roof line. It was EASY! Skillion design means it's also much easier to fit the roof (a plus if you're owner building) because there's no cutting (I used iron on the roof - whatever you do do NOT use tiles!)A skillion roof also makes fitting of PVs much easier, and you can probably fit more kW than a hip roof of the same size. http://damnthematrix.wordpress.com/2011/11/01/mon-abri/
I ran across your blog elsewhere, but thank you for posting it in this thread. I loved reading about you building your house (especially the bit with you getting the sign in the very beginning). It does serve them right!
Posted Sunday 1 Apr 2012 @ 8:29:49 pm from IP # -
GwenMorse
MemberPeterReefman said:
Yes it's tongue in cheek from the respect that a Cat-5 cyclone is VERY unlikely to occur in Cooma.But it's absolutely true that building code tie-down regulations have increased significantly in the last 15 years.
Thanks for explaining.
You had just about stopped my heart when I read it, because I thought you were saying it was a building standards change after the last cyclone.
Posted Sunday 1 Apr 2012 @ 8:37:15 pm from IP # -
I didn't use trusses.... if you look at the pics on my website http://damnthematrix.wordpress.com/2011/11/01/mon-abri/ you will see (on the upper level) the clerestory window line is supported by a 200mm block wall (which I core filled for extra thermal mass). To support the roof, I used 200x50 cypress pine roof bearers. On the lower level, I spanned from the split level retaining wall to the closest East block wall with a 250x100 hardwood beam I recycled....
You'll also notice that the S roof has an overhang to shade the clerestory windows, which operate like clockwork! http://damnthematrix.wordpress.com/2011/09/21/news-from-the-equinox/
Posted Wednesday 4 Apr 2012 @ 2:28:20 am from IP # -
Hi members and others. I live in Melbourne and have a house with a fairly complicated roof that incorporates curved skillion sections on the north and south with north facing double-glazed clerestory windows.There is also a trussed curved gable roof running north south immediately behind and joined to the southern skillion curve finishing in a gable end wall facing south. The west facing roof is another skillion running from the base of the southern curved skillion roof to the southern gable end. The office roof is a simple skillion roof running from the base of the southern curved skillion on the eastern side. The clerestory wall finishes before the ends of the bottom (Northern) curve and 18 solar panels sit on the roof curve below the clerestory windows. This roof has been in place for nearly 12 years now with no leaks or problems so far. It is beautiful to look at and the clerestory window function works well.
Posted Wednesday 4 Apr 2012 @ 10:55:10 am from IP # -
Franklin
MemberRegarding recent posting about venting ceiling spaces, is anyone else using the HRV heating/cooling system (or similar)? As sunshine hits roof, air in the ceiling is warmed, then a low-power fan is used to pump this air into the house below, depending on the temperature difference between the house and the ceiling. I find it works well, and we dont vent away the free heat. It doesn't do away with the need for other heating in the depths of winter, but it reduces the load significantly, especially on sunny days. It also works in reverse on hot days when the night temp drops below that house temp. Lots of stored heat in our double brick walls. The cooler air in the ceiling pumps through and creates positive pressure, pushing out hotter air trapped below.
Posted Monday 16 Apr 2012 @ 1:14:08 am from IP # -
Franklin
I'm a bit bothered by the logic of your system.
If designing a house from scratch and planning to use ceiling air that is heated through the roof, it would make sense to put no insulation under the iron or tiles, so the ceiling air would get warm. Then, of course, you would lose a lot of heat through the roof at night.
I think it would pay to insulate the roof well enough so that the air in the ceiling is not warm enough to use in this way.Posted Monday 16 Apr 2012 @ 8:58:55 am from IP #
