The window glass is still going in but both the long frames are now in place. I happened to be out cutting the grass when the longest window (on the left in picture four) was being lifted up and it was quite a business as it needed to be attached to the quarter landings of the staircase.
Earlier in the week I got a tour of the upper floors. It was the first time I'd seen the inside of the rooms at the top of the house and you can see the special insulating membrane that lines the inside of the roof. Essentially the membrane works on the same principle as the stomata of leaves, with tiny holes opening and closing in response to moisture in the atmosphere. It's all extremely clever, so if you want to know more check out the manufacturer's website.
The ducting for the electricity cables seems to be complete and this picture shows the cables runninng under the joists for the wooden floors on the north side and then passing in to the main body of the house. The electric cables are part of the green spec as they are free of PVC, unlike most cables. If you want to check out quite how nasty PVC is then look at Greenpeace's website, that will scare you.
As we approach the last ten weeks of the build the site is now busy with carpenters, electricians and plasterers - watch this space for next week's visitors!