After a number of false dawns, my back feels somewhat better and I have finally done a little work. Unfortunately, it's all been at floor level, which is not a great plan with a dodgy back.
You have no idea how much work is involved in getting an oversite as clean as this:
My task is to get the insulation and underfloor heating pipes down ready for screeding the floor. First job after the mega-tidy up is to put in the upstand pieces around the outside walls, and the soft foam cushioning strips around all the internal walls which allow a little expansion room for the screed (thus helping prevent cracking). I decided to try to get the top of the upstands level, and use them as a guide for setting the screed levels, to lots of fiddling about on hand and knees adjusting :
I knew the house was out of square. Now, so do you. That's probably 3" over 8 feet:
This is the before and after in the new part of the house where we had to leave the floor short to dig foundations under the old part. The foundations are covered with the black polythene:
Notice the dots on the surface of the insulation. This is where I have pushed the tip of my foam gun through the insulation to squirt foam into voids under the insulation, cause by a differential between foundation levels and slab levels. I also do this between all joints. The result is rock solid. The foam is cleaned of, then the joints all taped with a foil tape, which prevents the cut edges of insulating boards drawing moisture from the screed differentially, leading to increased likelihood of cracks:
Ready for the UFH pipes:
First job is to work out what you're doing. Second job is to lay out a series of clip strips, which have a self adhesive strip to hold them onto the Celotex, but they're also clipped down with U shaped barbed push-in plastic clips (the same ones which also hold the pipes):
My camera doesn't have a flash, and it gets dark very early these days, so forgive the quality. Here is the only photo which shows anything at all, this being the layout in the hall and dining room:
I'll take a better picture in the light tomorrow. This is where all the 3 new circuits terminate:
You can see the 3 working circuits on the right hand side of the manifold, and the 3 new ones for the old part of the house marked up and sitting roughly in position for the plumber to connect in due course. I laid about 180 metres of pipe at typically 200mm centres, although obviously things get congested adjacent to the manifold.
My back doesn't feel strong enough to tackle the screeding tomorrow, so I'll find something else to do, and hope the weather (and my back) is OK for the day after.