Insulating a conservatory roof?

[kjacko]

Hi all,
Came across someone who insulated and plaster boarded his conservatory roof. Form his picture it looks to be very similar to ours, so wondering if we can do the same. Had a few ridiculous quotes to change the current opal bronze polycarbonate into white panels for better insulation.
As you can see from the pics it’s a pent/lean to roof, polycarbonate is 35mm, self-supporting glazing bars.

What, truly are my options here to stop it from being freezing in the winter and boiling in the summer? We do have a/c in there, but ya know, want another option.

 

[noseall]

What, truly are my options here to stop it from being freezing in the winter and boiling in the summer? We do have a/c in there, but ya know, want another option.

Replacing the roof with an expensive lightweight insulated fella will help, but won't affect all the radiation from the windows. You may still end up disappointed and £5 - 10K poorer.

We have knocked down and replaced more conservatories in the last 10 years than ever.

 

[catlad]

They are not made for winter use.

 

[dormermike]

Replacing the roof with an expensive lightweight insulated fella will help, but won't affect all the radiation from the windows. You may still end up disappointed and £5 - 10K poorer.

We have knocked down and replaced more conservatories in the last 10 years than ever.

Interesting. Do you ever reuse the dwarf walls?
I've got a massive conservatory which has an ancient 1993 circa polycarb roof and I need to do something with it. It's a P shape, approx 10m wide and 3m deep. The dwarf walls are cavity with brick external leaf which is tied to the main house, and the inner leaf are breeze block. The floor slab was laid at same time as the house and is insulated and DPM. I dug down and foundation was at 800mm. I'm wondering if I can build a lightweight single storey on top of the existing ground works. Did have quotes last year from building firms but they wanted to remove the slab and start again, seems a waste to me and much more £. Tempted just get individual trades in and get it done. Lots of options including SIPS.

 

[noseall]

Interesting. Do you ever reuse the dwarf walls?

Where (foundations) applicable - yes. On a different footprint - no.

Congon3

• noseall
• 19 Jul 2018

Congon2

• noseall
• 19 Jul 2018

Congon1

• noseall
• 19 Jul 2018

 

[dormermike]

Thanks, so you just check depth of existing foundations to determine if suitable? It must keep costs down a good bit avoiding ground works.

Do you do work in South Wales by chance?

 

[noseall]

Thanks, so you just check depth of existing foundations to determine if suitable?

Correct. You will be required to dig two, maybe three test holes. These will need to go beyond the edge of the concrete to determine thickness, depth and ground conditions.

It must keep costs down a good bit avoiding ground works.

It can save up to about 20% of the overall (building work) costs.

Do you do work in South Wales by chance?

I've played golf there (Pennard).

 

[dormermike]

Haha thanks noseall and apols to OP for the thread hijack