Category Archives: First-Fix

Week 27, Day 2

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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 5

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Week 26, Day 5:

  • Boarding out the floor of the balcony (west end of the first floor)
  • Building the wooden cavity wall at the north end of the balcony
  • More electrical first-fix, running mains cables on the second floor
Week 26, Day 5

Week 26, Day 5

Gradient to balcony floor formed using wedge-shaped strips under boards

Gradient to balcony floor formed using wedge-shaped strips under boards

(The above photo taken rather later, after some of the cabling was in place, when I spotted that one of the darker-coloured wooden strips clearly showed the wedge profile.)

Wooden wall at end of balcony

Wooden wall at end of balcony

The wall at the north end of the balcony is effectively part of the cavity wall structure but there’s no supporting masonry underneath so it’s framed in timber in order to be lightweight but it will get filled with cavity wall insulation like the rest of the walls.

Mains and data cable ready for electrical first-fix

Mains and data cable ready for electrical first-fix