Double glazed or single glazed????

Information on building a house, buying poperty and land, and all other general contruction topics...
Marcosteffano
udonmap.com
Posts: 789
Joined: April 16, 2016, 9:20 am

Re: Double glazed or single glazed????

Post by Marcosteffano » June 6, 2017, 8:13 am

sometimewoodworker wrote:
Marcosteffano wrote:..and we don't actually get heat from the sun like a heater,we get light that turns to heat to put it basically.otherwise the whole of space would be warm,hot or like udon,fffff hot.
I think you must have missed physics 101 :)

We do get heat directly from the sun. It produces full spectrum electromagnetic radiation. The infrared part of that spectrum is known as heat and when it hits an object that absorbs it that object gets hot.

So as the majority of space contains very few objects it isn't hot, however if you put black object into space it gets very hot

Marcosteffano wrote: The darker the curtains that face the window the more they will absorb light and convert it into heat.
Well a very tiny amount will, but they mostly absorb infrared radiation and that is heat.
I think we've got crossed lines here.i was trying to explain that we get light from the sun that when it reaches us it is then transferred into heat.same as a solar panel.we don't get electric from the sun,we get light and convert it into electric.my belief is infrared radiation isn't heat until by some way is converted into heat.sorry if I've got this wrong but I'm a brickie and left school at an early age to go on the cement mixer and hod.

Marcosteffano
udonmap.com
Posts: 789
Joined: April 16, 2016, 9:20 am

Re: Double glazed or single glazed????

Post by Marcosteffano » June 6, 2017, 9:47 am

Nit picking,right a standard or non inverter type.i paid the extra for the inverter type.i think you knew that what I was getting at but had to have a poke.seriously get a life.

glalt
udonmap.com
Posts: 1401
Joined: January 14, 2007, 10:35 am
Location: Nong Hin, Loei

Re: Double glazed or single glazed????

Post by glalt » June 6, 2017, 5:06 pm

Rather than spending a lot of money trying eliminate heat, by far the most effective way is to eliminate sun hitting your windows. If you don't have a large overhang or shade trees, you should seriously consider awnings. They are not that expensive and some are quite attractive.

User avatar
sometimewoodworker
udonmap.com
Posts: 1204
Joined: October 7, 2008, 11:19 am

Re: Double glazed or single glazed????

Post by sometimewoodworker » June 6, 2017, 8:01 pm

glalt wrote:Rather than spending a lot of money trying eliminate heat, by far the most effective way is to eliminate sun hitting your windows. If you don't have a large overhang or shade trees, you should seriously consider awnings. They are not that expensive and some are quite attractive.
Good advice, though many houses have a great storage heater attached to the bottom of the walls to wit the concrete strip or walkway people add to avoid earth splashing up on to the walls. So you also need to stop the heat that radiates up from that. Shade it if you can, painting it white will lower the temperature by 10 degrees and if it will still radiate in the windows use a low-e glass.
Jerome and Nui's new househttp://bit.ly/NJnewHouse

User avatar
sometimewoodworker
udonmap.com
Posts: 1204
Joined: October 7, 2008, 11:19 am

Re: Double glazed or single glazed????

Post by sometimewoodworker » June 6, 2017, 8:18 pm

Marcosteffano wrote:.also double glazing is not 20% more expensive than single glazed,it's more like 2-3 times the price.
You are being badly ripped off if you are getting those kinds of quotes.

As I said, assuming that you have a window profile that will accept an IGU, the difference in cost is around 20%.

However if you are comparing a mass produced single glazed window (it's profile could never support an IGU) to a custom made window that will accept either an IGU or single pane then of course you will get those differences.

Did you investigate GlobalHouse as a source for mass produced double glazed windows?
Jerome and Nui's new househttp://bit.ly/NJnewHouse

Marcosteffano
udonmap.com
Posts: 789
Joined: April 16, 2016, 9:20 am

Re: Double glazed or single glazed????

Post by Marcosteffano » June 6, 2017, 9:30 pm

Never seen double glazing anywhere.as I asked before could you let me know where I can find the company you used as they seem to know what they are doing.mine are single glazed upvc and for 20% more I will use double glazing units.im talking about the whole unit including the frame,not just the glass.like I said previously I got mine off the shelf and cut the holes to suit,which was 20mm all around the windows I replaced.

User avatar
sometimewoodworker
udonmap.com
Posts: 1204
Joined: October 7, 2008, 11:19 am

Re: Double glazed or single glazed????

Post by sometimewoodworker » June 7, 2017, 5:49 am

Marcosteffano wrote:Never seen double glazing anywhere.as I asked before could you let me know where I can find the company you used as they seem to know what they are doing.mine are single glazed upvc and for 20% more I will use double glazing units.im talking about the whole unit including the frame,not just the glass.like I said previously I got mine off the shelf and cut the holes to suit,which was 20mm all around the windows I replaced.
As I mentioned, I have seen off the shelf double glazing in GlobalHouse in KK but as many things in Thailand sometimes they have it sometimes they don't. I haven't looked in the last 2 years as we have our windows.

As I said the company name is on the back of their shirts on page 7 of my build story, and they come from Bangkok. They spent 7 days fitting our windows, doors and mosquito nets. The tools they use (Festool) will give you an idea of the prices they charge. I would guess that their quote for single glazed units (they make all the windows in factory) will be a lot higher than any local company. They have made windows for the British ambassadors residence in Laos, US embassy in Bangkok as well as the US ambassador in Bangkok

And of course we are talking about the complete windows not just the glazing unit.

If you are comparing the cost of glazing units only then by definition the will be at least double the price assuming you are using two sheets of glass the same thickness as in the single.
Jerome and Nui's new househttp://bit.ly/NJnewHouse

Marcosteffano
udonmap.com
Posts: 789
Joined: April 16, 2016, 9:20 am

Re: Double glazed or single glazed????

Post by Marcosteffano » June 7, 2017, 6:09 am

sometimewoodworker wrote:
Marcosteffano wrote:Never seen double glazing anywhere.as I asked before could you let me know where I can find the company you used as they seem to know what they are doing.mine are single glazed upvc and for 20% more I will use double glazing units.im talking about the whole unit including the frame,not just the glass.like I said previously I got mine off the shelf and cut the holes to suit,which was 20mm all around the windows I replaced.
As I mentioned, I have seen off the shelf double glazing in GlobalHouse in KK but as many things in Thailand sometimes they have it sometimes they don't. I haven't looked in the last 2 years as we have our windows.

As I said the company name is on the back of their shirts on page 7 of my build story. They spent 7 days fitting our windows, doors and mosquito nets. The tools they use (Festool) will give you an idea of the prices they charge. I would guess that their quote for single glazed units (they make all the windows in factory) will be a lot higher than any local company.

And of course we are talking about the complete windows not just the glazing unit.

If you are comparing the cost of glazing units only then by definition the will be at least double the price assuming you are using two sheets of glass the same thickness as in the single.
I searched through the photos,are you taking the piss,they've all got safety harnesses on.whats the problem with just giving me the name of the company.talk about hard work.

User avatar
kopkei
udonmap.com
Posts: 1292
Joined: August 27, 2010, 6:55 am

Re: Double glazed or single glazed????

Post by kopkei » June 7, 2017, 7:57 am

all this talk about prices but again not mentioning any?
maybe it is time to put some prices by those whom claiming to have bought at a good price , without them no comparison possible ...as building a home also, i have all exact prices of what i payed, how big window ? what price ?
so we can compare our self what the extra price is for uvpc double glazed...thanks.. ;)

User avatar
sometimewoodworker
udonmap.com
Posts: 1204
Joined: October 7, 2008, 11:19 am

Re: Double glazed or single glazed????

Post by sometimewoodworker » June 7, 2017, 8:16 am

Marcosteffano wrote: I think we've got crossed lines here.i was trying to explain that we get light from the sun that when it reaches us it is then transferred into heat.same as a solar panel.we don't get electric from the sun,we get light and convert it into electric.my belief is infrared radiation isn't heat until by some way is converted into heat.sorry if I've got this wrong but I'm a brickie and left school at an early age to go on the cement mixer and hod.
You have a skill set that I could never get.

A brief explanation assuming nothing. The sun produces radiation ranging from very long waves to very short x-rays are an example of extremely short wave radiation.

Visible light is a small part of the range. Red is long, blue is short.

Currently solar panels use the visible light radiation range (violet to re 380-750nm) but a future technology will also use light from the infrared into the ultraviolet. One of the reasons why they produce most electricity between 10am and 3pm is that is when they can get the greatest light.

Heat:
It is transferred in three ways

Conduction, the most efficient, touch a hot exhaust pipe and you have an instant burn.
Convection, you need some thing like air or water for that to work, hold you hand high above a hot exhaust pipe and most of the heat will come from the hot air, a little from infrared radiation.
Radiation (infrared), this is the same kind as light it travels best when there's nothing to stop it (space), hold your hand under and near the hot exhaust pipe. The heat you feel is from radiation.

To reduce heat coming through your windows by radiation you don't need to stop light, you need to stop infrared radiation. Low-E glass reduces IR much more than visible light. It is better to stop the heat from coming through the glass than stop it inside your house.

Glass can be a very high technology product and engineered to stop or transmit many different frequencies. You pay for the technology and research.

Glass can be a very low tech product and cheap, often made in China.
Jerome and Nui's new househttp://bit.ly/NJnewHouse

Marcosteffano
udonmap.com
Posts: 789
Joined: April 16, 2016, 9:20 am

Re: Double glazed or single glazed????

Post by Marcosteffano » June 7, 2017, 8:37 am

sometimewoodworker wrote:
Marcosteffano wrote: I think we've got crossed lines here.i was trying to explain that we get light from the sun that when it reaches us it is then transferred into heat.same as a solar panel.we don't get electric from the sun,we get light and convert it into electric.my belief is infrared radiation isn't heat until by some way is converted into heat.sorry if I've got this wrong but I'm a brickie and left school at an early age to go on the cement mixer and hod.
You have a skill set that I could never get.

A brief explanation assuming nothing. The sun produces radiation ranging from very long waves to very short x-rays are an example of extremely short wave radiation.

Visible light is a small part of the range. Red is long, blue is short.

Currently solar panels use the visible light radiation range (violet to re 380-750nm) but a future technology will also use light from the infrared into the ultraviolet. One of the reasons why they produce most electricity between 10am and 3pm is that is when they can get the greatest light.

Heat:
It is transferred in three ways

Conduction, the most efficient, touch a hot exhaust pipe and you have an instant burn.
Convection, you need some thing like air or water for that to work, hold you hand high above a hot exhaust pipe and most of the heat will come from the hot air, a little from infrared radiation.
Radiation (infrared), this is the same kind as light it travels best when there's nothing to stop it (space), hold your hand under and near the hot exhaust pipe. The heat you feel is from radiation.

To reduce heat coming through your windows by radiation you don't need to stop light, you need to stop infrared radiation. Low-E glass reduces IR much more than visible light. It is better to stop the heat from coming through the glass than stop it inside your house.

Glass can be a very high technology product and engineered to stop or transmit many different frequencies. You pay for the technology and research.

Glass can be a very low tech product and cheap, often made in China.
Yes we've gone through all the physics of radiation,light spectrum,blah,blah,blah.how about you just supply me with the name of this window company instead of making me run around the block looking at a name on the tshirt of your window fitters that are working on your mrs house.

User avatar
sometimewoodworker
udonmap.com
Posts: 1204
Joined: October 7, 2008, 11:19 am

Re: Double glazed or single glazed????

Post by sometimewoodworker » June 7, 2017, 10:58 am

kopkei wrote:all this talk about prices but again not mentioning any?
maybe it is time to put some prices by those whom claiming to have bought at a good price , without them no comparison possible ...as building a home also, i have all exact prices of what i payed, how big window ? what price ?
so we can compare our self what the extra price is for uvpc double glazed...thanks.. ;)
I haven't read anything about buying at a good price, nor yet have I posted anything about a good price. I have posted about a differential.

If by good you mean low then you need to get off the shelf windows as it will be virtually impossible to match the price/quality of them.

If by good you include service, frame quality, glass quality, glass options, installation team, and after sales service then you will be paying a significant multiple of the cheapest price.

An example of low cost is in SWMBO' build http://bit.ly/GMnewHouse

The only way to get a like for like comparison is by getting quotes from the same company for the same profile with the different options (single/double glazing). SWMBO and I spent several hours discussing all the different options with the company who supplied our windows the percentages I have talked about came from them, every other piece of information we got from them has proved to be correct.

Don't try to compare a Tata Nano with a Bentley Mulsanne.
Jerome and Nui's new househttp://bit.ly/NJnewHouse

User avatar
kopkei
udonmap.com
Posts: 1292
Joined: August 27, 2010, 6:55 am

Re: Double glazed or single glazed????

Post by kopkei » June 7, 2017, 12:51 pm

so if you only can compare within the same company? , it is indeed useless to post any price as we can ask a quote our self , how ever it would be useful for feature posters to also please mention the price so we can make up our mind again our self if we are comparing a tata with a bentley? and even so we will know the difference in price and than it is up to us which one we are interested in , and we can decide if it is really worth the extra money .. , i see so many people come here building a castle with a retaining wall to withstand an elephant stampede ...using all imported materials whom cost double or triple the price of local material ? (as they never mention price ) ,thinking they will have a better,more quality home ? , no way ...as to my opinion ...i was maybe like this too when i first moved to los , but not anymore , i have realized you can build a nice home/swim inexpensive with the use of local materials whom will do the job too , and local workers , if you have little knowledge about building ... when i read some posters they start building , need engineers , making everything complicated using imported goods ,comparing everything with their home country, i am shaking my head the complete build as they make everything way to complicated and unnecessary expensive ,but we are all different and at the end what is important ? that you are happy and stay happy with what you have done ...
good luck to all....

Marcosteffano
udonmap.com
Posts: 789
Joined: April 16, 2016, 9:20 am

Re: Double glazed or single glazed????

Post by Marcosteffano » June 7, 2017, 1:04 pm

When your only going to the market a Bentley to tata will do the same job..in fact why buy the mrs and her family a bentley when they would be happy with a tata.

User avatar
TAXIfor7/11
udonmap.com
Posts: 845
Joined: March 19, 2017, 2:08 pm

Re: Double glazed or single glazed????

Post by TAXIfor7/11 » June 7, 2017, 2:58 pm

love this thread,3 pages of the scientific values of glass and curtains,but no answer to the real question about costs and recommendations?beer wars,pie wars,pasty wars.fan wars, pizza wars now double glazing wars,ffs,lol,better than coronation street,its like talking to a politician,can,t get a straight answer

Post Reply

Return to “House & Land”

Who is online

Users browsing this forum: No registered users and 1 guest