Hi all, I'm looking for a cheap place to buy whirlybirds for my tiled roof. Online or Adelaide, tried ebay didn't really like what I saw.
Thanks
Whirly bird wtb
pakkapie on 28/10/2014 - 22:35
Comments
Thanks. No Masters here yet, will look into bunnings.
Has the airport one still not opened?
Not yet, end of year I'm told.
@pakkapie:
Wow! They're taking their time. Last I saw it about 2 months ago it looked to me as though it would open within weeks!
At the same time, Costco at Churchill Centre was a flat area of dirt, but they'll be open in a couple of weeks!
The bird may remove the hot air in summer (if you have vented eaves) but it will also remove the warm air from the roof space in winter. Have you ceiling insulation? Do you really want to make a hole in your roof?
I have insulation yes, but didn't consider winter heat loss. Not sure now what to do, was just looking to take some load off my air conditioner this summer.
No hole in roof, just remove tiles and replace with whirly bird and lead flashing.
no matter how much lead flashing you place, you still have a hole in your roof that wasn't there in the first place. This will be your weak spot now.
what insulation have you got in your ceiling? are your walls insulated/ what construction type is the house (brick veneer/ double brick/ timber cladding). Any holes/ gaps between openings such as windows and doors? Have you got any big windows that face the sun? Alternatives are to install external awnings, dark tint to selected/ summer exposed windows.
Batts in the ceiling, unsure of rating (was installed by previous owner when house was built in 2001),house is brick veneer. Everything window and door wise is flush, no gaps, and only front windows get the big afternoon sun, and there's an awning there already. Air conditioning already works well, don't get me wrong, is evaporative though so never icy cold.
Was just thinking I could maybe reduce summertime consumption with whirlybirds, but I think you're alluding to them not being ideal (winter losses).
I'd window tinting that big of a help? We have tons of glass, non sun facing though.
whirlybirds may have some positives, however for me the negative of having a roof penetration far outweighs any gains. Especially in strong wind it will create a negative pressure in the roof space which may cause some issues there too. I have Viridian glass meaning factory glass tint and it reflects the internal heat back into the house during winter and reflects external heat during summer. Clear glass is a poor insulator, so you will have heat gain through it in summer. External awnings are good.
Thanks, makes sense about the roof. I'll check out the tinting option I think, just want to save energy. We have ducted gas heating so internal seems like a good idea too.
Fairly sure you can buy them at bunnings and masters. They appear to be between $79-120 depending on the model. Can't comment on the quality though