Today we took delivery of the Velux windows (and additional slates, to replace broken ones).

There are two electronically-operated opening windows to be installed at the top of the stairwell, these will be connected via a Velux-supplied control unit to the fire alarm - and also switches to enable the people in the house to open and close the windows (pretty much like electric windows in a car).

What I didn't realise until it arrived was how big and heavy the control unit is: looks like it's built to withstand World War Three!

With the roof fully stripped, we discovered a purlin running right behind the original skylight at the top of the stairs (which we couldn't see before because it was behind plaster). This meant that the larger replacement Velux window could not be accommodated. As this is a smoke vent window and part of our fire safety design, this was a significant issue.

Today I took the plunge and ordered an ISE Drying Cabinet, which is the best clothes dying solution that I could find...

The builders have started work on the roof today. Straight away we've found out that we aren't going to be able to salvage as many slates as expected. Apart from that, it's so far, so good.

The MVHR units arrived...

I was considering a very impressive 1.5 litre vacuum flush toilet called Propelair, which I'd seen at Ecobuild...

Set up a basic site office in one of the bedrooms - desk, chair, whiteboard, drawings on wall.

Had another meeting with the sprinkler company...

The rainwater harvesting system arrived...

I called Velux technical support to try to understand their somehow rather incomprehensible code numbers...

This evening I had the future occupants of the house come round and discussed various things with them...