Double glazing or triple glazing

!RAY

Hi
Not sure where to post this.
I want to get a porch, keeping the front door.
I have got a couple of prices but the problem some say triple glazing is what they use and it’s the best. Another company told me that triple glazing is to heavy for PVC and the patio doors will sag over time Double-glazing is the way to go.
Any advice much appreciated.

Cheers

sydthebeat

if you are retaining the original front door, i dont see the need to get triple glazing in a porch area which will, i assume, be unheated (ie no radiator in it).


TG can be fitted into PVC frames easily, but the "better" companies upgrade their frames to take the extra weight.

!RAY

Thanks sydthebeat

The porch will not be heated. There is not much of a price difference and i just want the job done right.
If the frames have to be upgraded for TG, the company that quoted me never mentioned this and i would guess there should be a greater price difference. That's the problem i would never know till problem arise if the frames were upgraded.

Cheers

martinn123

Suggest you get a bit more info. on the frames.
If they are designed to take a 28mm glass unit, you will get 4mm/8mm space/4mm/8mm space/4mm.
This is not a particularly efficient triple glass unit as the space at 8mm is too small. You will get U value about .9, as opposed to 1.1 with D/G and in my view its not worth the additional cost esp. in a porch.

Also as syd has mentioned the additional weight, there is 50% more glass, and if the frames are not properly reinforced the hinges etc. will sag over time.

What direction is the porch facing, and what colour frames will you use, as the amount of direct sunlight also has a bearing, esp. PVC on a South facing porch, where it can expand and contract, from absorbing the heat, ( that's if the Sun ever shines again ), also you can create an oven effect inside the porch if its not ventilated, which can effect the existing door, esp if its Timber.

!RAY

Hi Martinn123

Thanks for all the information. The colour is white and south facing. I have to get vents as it will cover the vent for the sitting room which has a gas fire. Now starting to think about brick work up to about 2.5 foot to match the excising brick work just have to check out the price.
I dont mind paying a fair price but the thoughts of problems down the road freak me out.

Cheers

martinn123

!RAY wrote: »

Hi Martinn123

Thanks for all the information. The colour is white and south facing. I have to get vents as it will cover the vent for the sitting room which has a gas fire. Now starting to think about brick work up to about 2.5 foot to match the excising brick work just have to check out the price.
I dont mind paying a fair price but the thoughts of problems down the road freak me out.

Cheers

Whoops, stop there a minute,others will be more specific on this area, but I think you need advice from someone who is Gas Certified, and not a D/G salesman.

sinnerboy

Agree with Martin - you must sort out the vents only to the satisfaction of someone who is Gas Certified

But otherwise - a curved ball . If the space will never ever be heated then why even double glaze it. Single glazing will will provide all the shelter you need. no need for thermal insulation to a space like this which is not heated .