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[tunnie]

Something else... sorry!     

This counter battern stuff..

Can see myself doing the below, fix a battern like this, then on each uPVC "Beam" where it leans down/goes up to the house, screw another battern along there. All way up to the house.



That would give me an "edge" or a frame to ram 25mm insulation in, with a snug fit. Can I then just screw 50mm plastboard to the batterns? (assume meeting in the middle) with 65mm screws going into the battern? (I would have to cut the plastboard?)

Or do I then need to run batterns across the other way, once the initial 25mm insulation is in? But surely this would create an additional 25mm gap? Between insulation and insulated plasterboard? These counter batterns are then the right size for plaster board? I'm thinking as I type here, does the counter battern need to be much, much thinner? *think a light bulb just turned on 

[tunnie]

So once beams are up and insulation is in, thinner smaller counter beams go up, but in the exact same size as the plastboard bits? Meaning as less joins as possible as the plasterboard does not have to align to the main 25mm beams?

[TheBoy]

Given you would get a plasterer for the 'finish' and even TB can paint, what could possibly go wrong!

Ah, but your instructions let me down, Master, and all my paint ended on the floor.  You didn't account for incompetence

[RobG]

Given you would get a plasterer for the 'finish' and even TB can paint, what could possibly go wrong!

Well so far in the whole house, I don't think anything is plastered. It's all just plain plasterboard, which has been painted white. 

I think it's how the batterns would work, which puts me off,  the main 'straight' panels are simple, but the corner work causes me concern. I would be happy with just simple straight angle down at one side, but it's how I would go about that, given there is so much glass.

I'm also more than a tad nervous about screwing woodern batterns into uPVC beams, that have two big ass bits of double glazing joining. (or at least in the same beam)

Most rafters are like the one in the pic. If you find the centre and screw through with a "self cutter" you`ll hit the aluminium

[tunnie]

Thanks Rob, luckily the centre has a clear dip so it can be seen. 

[tunnie]

Just dragging this up. The usual handy-man guy I use for jobs I can't do has gone off grid, not heard from him for weeks  I've rung some other people, last chap really was not interested. He suggested roof blinds instead 

I tried to make the point of how that would make it warmer, but he said wooden blinds are better.  - Perhaps they would on the side windows, but not the roof!

I don't have any other options, I don't have £20k to do a proper brick job and replace the UPVC crap. So doing kingspan style insulation and insulated plaster board is my best option, along with upgrading the heater.

Any one recommend a trades person in the Surrey/Hants boarder area?

[Gaffers]

Let me speak to my bricky mate, see if he knows someone

[tunnie]

Let me speak to my bricky mate, see if he knows someone

Cheers 

Grown a bit disheartened with the project after speaking to that guy, he was quite adamant it would make no difference. But surely by insulating the whole roof, with fair amount of insulation and plaster board, instead of just plain glass would help. 

[Kevin Wood]

Let me speak to my bricky mate, see if he knows someone

Cheers 

Grown a bit disheartened with the project after speaking to that guy, he was quite adamant it would make no difference. But surely by insulating the whole roof, with fair amount of insulation and plaster board, instead of just plain glass would help. 

Didn't sound like a professor of thermodynamics, though, to be honest. More like a tradesman who couldn't be @rsed with the job.

[tunnie]

Let me speak to my bricky mate, see if he knows someone

Cheers 

Grown a bit disheartened with the project after speaking to that guy, he was quite adamant it would make no difference. But surely by insulating the whole roof, with fair amount of insulation and plaster board, instead of just plain glass would help. 

Didn't sound like a professor of thermodynamics, though, to be honest. More like a tradesman who couldn't be @rsed with the job.

Yup. Even more so when he said he would quote me on the job via an SMS, if I liked the price, only then would he send out a 'proper' one. Lazy Bas..... 

Annoys me, as I'm sure I could do some if not all of it, just need a bit of guidance/expert on site for the initial fitting. 

[Phil]

Be very careful sticking something on the inside of the glass, the thermal stress on the glass is likely to cause failure, then you will have a shed load of problems.

I work with glass in commercial and residential applications and there is a lot of science and thermal modelling that goes into what glass, what coating and what is on the inside (blinds, reflective film, air space) that affects end performance and avoids failure.

The structure also has allowances for thermal movement fix that in place with battens and plasterboard and you potentially could have issues

Replace the glass with the PPC aluminium insulated sandwich panels, light enough not to cause problems and a clean install

Do it once do it right

just my 2p of course

[tunnie]

Thanks for the input 

Nothing would be attached to the glass itself, that would have an air gap for the insulation.  So it remains untouched   

[Kevin Wood]

Thanks for the input 

Nothing would be attached to the glass itself, that would have an air gap for the insulation.  So it remains untouched   

You could still get a lot of heat building up between glass and insulation on a sunny day, though. That may damage the glass. I had a sealed unit crack due to a blind being down on a sunny, yet subzero, day.  I guess the temperature differential between inside and outside killed it.

[tunnie]

Hummmm, well I would put that window tint stuff on inside of the glass, so that it would reduce the heat. I guess that could always be a next phase, if anything did happen to them.

[05omegav6]

Any half decent window company should be able to replace the glass with insulated polycarbonate panels for minimal cost/effort... Best of both and you then have the option of reglazing later on without drilling holes all over the place