The rear extension project has finally moved on, which reminds me that I have to update some of my old threads!
For now, I am we are at the point of putting up the side walls and soon the roof frame will be taking shape in a week or two. The contractor has asked me to order the skylights for the carpenters to use for accurate measurements, check the weight for lifting etc.
To recap on a few things, the extension is 4m to the rear for a semi-detached house. The ceiling will be vaulted with a pitch of 15 degrees. I have chosen two fixed portrait skylights suitable for this pitch at 1m x 2m from these guys who seem to have good reviews in general:
Luxlite
https://roof-maker.co.uk/rooflights/luxlite-pitched-rooflights/
They come with triple glazing as a standard and a thermal U-Value of 0.6w/m2k.
The main issue is deciding whether we need one of them to be opening type rather than fixed. That is in case there is smoke or anything else trapped in the ceiling. To add, the extension will have lots of insulation and 4 panes of bifolding doors spanning almost 4 meters across the rear that faces the garden.
The extra cost for one window to support the opening function would be around £260.
I am wondering if I actually need this function with the large opening of the bifolds, can it get that hot in the summer? What would you recommend?
For now, I am we are at the point of putting up the side walls and soon the roof frame will be taking shape in a week or two. The contractor has asked me to order the skylights for the carpenters to use for accurate measurements, check the weight for lifting etc.
To recap on a few things, the extension is 4m to the rear for a semi-detached house. The ceiling will be vaulted with a pitch of 15 degrees. I have chosen two fixed portrait skylights suitable for this pitch at 1m x 2m from these guys who seem to have good reviews in general:
Luxlite
https://roof-maker.co.uk/rooflights/luxlite-pitched-rooflights/
They come with triple glazing as a standard and a thermal U-Value of 0.6w/m2k.
The main issue is deciding whether we need one of them to be opening type rather than fixed. That is in case there is smoke or anything else trapped in the ceiling. To add, the extension will have lots of insulation and 4 panes of bifolding doors spanning almost 4 meters across the rear that faces the garden.
The extra cost for one window to support the opening function would be around £260.
I am wondering if I actually need this function with the large opening of the bifolds, can it get that hot in the summer? What would you recommend?