I think the glass stamp is concealed in the frame?
So if you ordered 8mm toughened & 10.38mm laminated, how would you know?
Double Glazed Windows - How Do You Know You Got The Glass Type & Thickness You Paid for?
Boogerman on 26/12/2022 - 07:51
Last edited 26/12/2022 - 07:52
Last edited 26/12/2022 - 07:52
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Op will break his spirits
That would be a pane
Op will kick his glass
Absolute pane in the glass
Dont fret over broken glass (or is that split milk?)
It's pretty clear when a glazier is trying to scam you.
You can see through a glazers lies?
Pretty transparent.
So if you ordered 8mm toughened & 10.38mm laminated, how would you know?
This is pretty thick glass, so should be easy to tell if you got the right glass in your case.
What is your air gap? 10mm? So the window should be looking to be around ~30mm thick. Is this the case?
At the end of the day OP got double galzed windows for a reason and thats all that matters.
So lets get to the bottom line because it not a measurement criteria
Its a performance criteria.. right?
So dear OP are the double glazed windows keeping out the noise and/or cold as they should?
In other words are they doing the job intended?
It's peak summer, could be a while before you can tell how much cold they keep out.
True!
But also not true because….
Fact is we dont know the criteria behind OPs requirement for double glazed windows.
So dear OP which is these is your reason for installing double glazed windows and are they living up to thier expected performance criteria?
- They increase insulatation against both HEAT and COLD by up to 40% so helping to reduce power bills by up to 20%. So reducing heat in peak summer is just as important as reducing cold.
- They help to insulate against outside noises by up to 60%
- Double glazed windows reduce the likelihood of condensation on windows
- They increase security by helping to prevent access
- When Laminated glass is used it also gives protection against damage caused due to UV radiation because it cuts almost 99% of UV radiation present in the sunlight
Design-wise:
a) The typical space between panes ranges from 6mm to 20mm. A minimum space of 12mm is recommended for optimum thermal performance. Alternatively, for good acoustic control and to reduce low frequency noise such as traffic and aircraft, the optimum air gap recommended is 150mm or over. Note that such large gaps allow convection to occur between the panes and reduce thermal insulating performance.
b) A wide range of different glass types, such as low-e and laminated, can be used in double glazing units to further increase energy efficiency and noise control. Low-e glass will further reduce the amount of heat escaping while thicker laminated panes disrupt sounds waves to improve acoustic performance. Laminated glass is also regarded as a safety glass by most of the standards. Laminated glass is normally used when there is a possibility of human impact or where the glass could fall if shattered. Shopfront glazing and windshields are typically laminated glasses.
Hence dear OP if your reason is to reduce outside noise then its not all about the thickness of the glass (it helps) but rather the internal gap between the glass panes my friend
If your glazier was briefed properly for the performance requirements (reasons) of your double glazed windows then they should have built them accordingly
So lets get to the bottom line because it not a measurement criteria
Well it is, as the OP wants to know if they got 8 + 10mm glass they ordered and paid for, rather than say a cheaper version like 8 + 4mm.
Its a performance criteria.. right?
Which is linked to the point above
So dear OP are the double glazed windows keeping out the noise and/or cold as they should?
LOL DG windows also keep the heat out. Its shocking I know…..
In other words are they doing the job intended?
Depends on what you define the job of the window as…… Single glazing works as a 'window'.
Builders and tradies are taking shortcuts everywhere else so why not with windows. If they get caught out then it's "whoops sorry". But honestly how many people would check this?
Bingo!
I measured ours before installation (5 + 6)
How did you measure it? Did the glazier admit you to their factory?
We had complete windows replaced. So the timber framed windows removed and replaced with new (uPVC) frames which were quickly followed by a truck that had all our glass. These were stored on site and progressively deployed in the following days. I had ample time to photograph and measure the glass
Kennards can rent you an ultrasonic thickness gauge.
https://www.kennards.com.au/for-hire/time-ultrasonic-thickne…Oddly though it doesn't mention glass as one of the materials it can do,
Certainly there are plenty of ultrasonic thickness guages/meters around. So maybe you can find someone who'll rent you one that definitely does glass.
There’s a few apps you can download to check for the non laminated. They work on reflection and aren’t bad. Certainly fine enough to distinguish between millimeter differences, rather than sub mm.
Get a very thin nail and gently hammer it through, use that to measure the thickness of the glass.
I live on the west side of Tassie & I love my double glazed windows, which are also tinted - cool
They only problem with mine is that the frame is metal.
While it is cold as not hell outside, windows are not cold to touch, but the metal frames are cold to touch.The bloke did not finish the sliding door, and it had a leak to the outside up the top, but a sock fixed that up.
I heard that they use an inert gas inbetween the panes, which helps in the windows not 'fogging up' on the inside.
Also, as it is an inert gas, it won't react to anything and thus start a decay process.
I have a problem with one window. It must have sprung a leak as it has streaks on the inside.
You don't know how annoying that is when you can't clean that window; it also happens to be the window that has the best view.
It looks out from the kitchen bench to the big fish pond, then a row of flowering bushes, then the far off mountains;
the other side is fine, but it has a fly-wire screen on it. (yes, we have the odd fly here in Tassie)While it is cold as not hell outside, windows are not cold to touch, but the metal frames are cold to touch.
Welcome to what they call a thermal bridge. Really good DG windows are thermally broken so this doesn't happen or get wood or uPVC versions.
If you have purchased double glazed windows and want to make sure that you received the glass type and thickness you paid for, there are a few things you can do.
Check your order confirmation: Make sure that your order confirmation specifies the glass type and thickness that you requested.
Ask the installer: When the windows are being installed, ask the installer to confirm the glass type and thickness that they are installing.
Look for labeling: Double glazed windows typically have a label or sticker on the glass that indicates the glass type and thickness. Look for this label and compare it to the specifications on your order confirmation.
Measure the thickness: You can measure the thickness of the glass yourself using a caliper or ruler. Make sure that it matches the thickness specified on your order confirmation.
Conduct a thermal test: Double glazed windows are designed to provide insulation, so if you want to check if you received the glass type you paid for, you can conduct a thermal test. Use a thermal imaging camera to measure the temperature of the glass. If the temperature is significantly different between the interior and exterior glass panes, it indicates that the window is double glazed.
If you have any doubts or concerns about the glass type and thickness of your double glazed windows, don't hesitate to contact your supplier or installer to address your concerns.
Hope this helps!
Sam @ <a href="https://qualityglassandglazing.com.au/">Quality Glass & Glazing</a>
Not all glass is stamped. Only true way is to measure it.
Do you not trust your glazier? He will be shattered..