Hi yes,
I have just had a new Guardian roof installed. I've posted some details on another blog site, but will add them here as well.
Ok, firstly you need to understand what you are trying to achieve and research carefully, there are a number of options out there and a number of cowboys who will do the work cheap. I didn't want that, what I wanted was a quality solution so my house could have an extra all year round room.
To start with I have a conservatory which is around 25 metres in size and is P shaped. It had a polycarbonate roof as fitted by the previous owner some 8 to 10 years ago, and the roof was starting to leak in small places. Normally a PC roof will need replacing around the 10 year mark although some may last longer. Therefore if you are considering an internal plaster board solution with a PC on top then it will eventually leak.
Secondly neither PC or glass roofs will hold back the heat either in or out, whether in summer or winter, therefore you will pay more for heating these conservatory roof types.
With respect to planning permission it depends on which area your are in and your local planning regs. My conservatory was built with planning permission 8 to 10 years ago, with under floor heating and no door between the conservatory and rest of the house and was therefore considered an extension. I therefore approached my local council with the new roof question and was told that provided it did not extend the current building, it was acceptable to put a new roof with considerably more isolation on the conservatory.
Please check with your local planning department.
There are a number of solid roof suppliers out there and I can only comment on Guardian. The roof is very good, in terms of construction.
However the roof is not normally installed by Guardian across the UK, therefore Guardian will recommend installers in your area. Ask to see their handy work before you sign the dotted line.
The cost for my roof 5x5 metres in size and P shaped was 10k. For that they remove the old roof, take away all the rubbish, protect floors and the room very well indeed. Install the new roof, insulation and finally plaster to a high quality finish.
The room is very warm now and much quieter and I have lost very little light because the ceiling is painted white and my PC roof was tinted.
In terms of condensation, you will only get this if the installer hasn't installed the roof correctly. There is an air gap between the layers of insulating board (two separate layers are fitted). If the air gap isn't there you can get condensation so keep an eye on the install to make sure its done correctly. Look on you tube for videos on this roof type.
In terms of the installation it took 3 days. Day 1 and within 6 hours they had removed the old roof and fitted the new complete with water proof covering and tiles. Day 2 they fitted most of the internal insulating material, plus finished the lead flashing outside. Day 3 they finished the insulation and plastered.
All in all it was a great job and looks fantastic. The price appears expensive but....
I was quoted 5k to replace the PC roof, 7 to 9k for glass and 10 k for the Guardian roof. As PC needs replacing every 10 years and the solid roof is guaranteed for 50 years, plus heating and fuel bill savings it makes sense to have your conservatory become part of the house year round. That’s just my take on it. Hope this is useful.