No difference in energy improvement at all switching to toughened glass.
I wouldn't advise spending the extra money on toughened unless you had to for safety reasons; ie human impact (AS1288)
As…

I can understand how it could look appealing (watching the chef from the deck outside just like at the fancy restaurants) and would let in plenty of natural light.
In terms…

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AS:3959-2009
BAL-40
WINDOWS
8.5.2 (b) (i)
Window frames and hardware shall be metal.
DOORS (side hung external)
8.5.3 (b) (i)
Doors shall be;
(A) non-combustible; or
(B) solid timber door with min thickness of 35mm and protected externally by…

Check with the builder to establish the cost of the install. Window quote might not be as bad as first thought. Wouldn't hurt to go and talk to…

Well done Scott, you summed that up beautifully. SOME window companies will try to mislead you into believing IGU's will outperform laminate glass in terms of acoustics. It…

Hi,
I gave a presentation on AS:3959-2009 (Construction of Buildings in Bushfire-Prone Areas) and my advice would be to run with aluminium windows, for cost reasons. Metal reinforced uPVC and…

Hello there,
Out of curiosity, why/how did you narrow your search down to just those two?
What about Dowell, Stegbar, Bradnams, A&L, G James... ?
I'm interested to hear about your proecess of…

See attached image, I searched patio bolt and found this. Are your windows Bradnams? These guys appear to have this as an option, sounds like exactly what you…

I suggest trying to contact the window manufacturer directly, although PD may not like this approach. Most window manufacturers can offer something similar to what you have suggested. …

Steveo - "Is there an independant that can look at plans and comment on glazing choice "bang for buck"??"
Certainly Steveo! You can find a list of ABSA (Association of…

Dymo,
You have made many assumptions. The most significant oversight is that "the shaded building gets 0W/m2 of radiant heat and the other gets 250W/m2". You are forgetting that…

Without getting into a debate, I see your point providing you can afford it. Is it the most cost effective option, I'm not sure, some would argue...

Well said Dymo. Obviously shading the window will completely block solar heat gain, unfortunately it will also block daylight (generally speaking...). I still think toned glass is the…

Hi Edward,
I apologise for not getting back to you yesterday, I was down in Melbourne for the day presenting some training material. Weather was perfect, just a shame about…

Edward,
Please see link below, you may be a little surprised...
For your benefit I modelled a standard single story house in Cairns using NatHERS approved 2nd Generation Software in order to…

The entire IGU (both panels) will be replaced mate. Depending on the availability of the glass used the lead time may vary but shouldn't exceed five days until delivery.

While a low 'Uw' (whole window u value) offers better insulation it is also important to note that individual needs are dependant on climate zone. For example, in cooling…

Air leakage has a significant contribution to sound transmission. Maximum air infiltration is 5.0L/s.m2 at a positive pressure difference of 75 Pa as measured according to AS 2047.
You can…