wouldn't fancy fitting them, mate

The two bottom sets of windows in the sunspace are 3000 x 2100 mm and the top sets are 3000 x 2200 mm at the highest side. The horizontal joining strip is only 2mm wide. We have a vertical glulam post 225mm wide between the two 30° angled windows. The clearances below the windows are 15mm for the sills and there is 6mm each side and on the top slope. The whole window array is 4300mm high and 6000mm wide. I think that fitting these windows is the hardest single job that needs done during construction as they will be really heavy and have to slot in pretty tightly. This job is too much for us to do and will be sub-contracted. The ashlar Dumfries sandstone block solar wall will be to the left elevation in this view. This is a beautiful warm red stone - and gives character to many Scottish cities notably Glasgow and Dumfries. The Burrell collection building in Glasgow strongly features this stone which is where we got the idea. It is expensive but nowhere near as costly as most sawn ashlar blocks.

We think it will be warm pretty much all year round in the sunspace without heating and even provide much heat to the rest of the house by convecting into the main living space - even on sunny days in midwinter. When Robin first showed us the drawings of the house - working from our wee cardboard models - we did both really go "WOW" when we saw how he had drawn the sunspace with these big windows. So, although it is the most expensive bit of the house and it could be built with something much simpler it is his key contribution and signature and we really admire the American Lindal homes style which also has these prows. Also to make the house more affordable (he knew we are on a budget) Robin has cleverly used standard framed windows from the Nordan range through out and that means no bespoke windows which would really bust the budget.