Week 27, Day 2

Week 27, Day 2:

  • Some progress agreeing the precise specification of the membranes required to protect the zinc roof finish
    • In particular, confirmation that it will be necessary to use a completely vapour-tight barrier on the inside of the Structural Insulated Panels to prevent any moisture from inside the house reducing the life of the zinc or the OSB within the SIPs
    • ALUTRIX which is a combination of thick aluminium foil and bitumen looks like the best option – on a “warm roof” this needs to go on the inside, where it will also act as a really good air tight barrier
  • More first-fix of the plumbing and electrical systems
Week 27, Day 2

Week 27, Day 2

Week 26, Day 3

Week 26, Day 3:

  • The south roof was over-boarded with 11mm OSB to provide enough thickness to firmly fix the zinc roof retaining clips to
    • The north roof has 18mm OSB whereas the south roof only had the 11mm OSB as the upper face of the Structural Insulated Panel
  • Still some discussions ongoing about the precise specification of the “structured separation layer” which needs to go between the roof boards and the zinc covering – in the meantime a basic membrane has been installed to keep the rain off and give the boards chance to dry out as much as possible before the zinc goes on
  • The concrete flooring team came back to cut the expansion joints into the concrete
  • The “missing” window glass for the top floor has been located at the Internorm factory in Austria and is now being shipped to the UK, so that should be installed by the end of next week
Week 26, Day 3

Week 26, Day 3

Wider view from main camera location

Wider view from main camera location

Concrete floor after power-floating

Concrete floor after power-floating

While the floor looks pretty good already, this is just the “rough” finish. After it’s had chance to cure for about 4 weeks it will get diamond-polished (so around the middle of May).

The paler circular disk is one of the electrical floor boxes, which will get a brushed stainless steel cover. (There’s another box barely visible further into the room.)