The underfloor heating is now installed upstairs together with the first fix plumbing for the bathrooms.  The insulation has been installed downstairs.  The insulation consists of large slabs of expanded high density polystyrene that is foil backed.  It is 50mm thick and is cut to size using a wood saw.  Once it is down, it can be walked on.

A strip of expanded plastic is put all around the edge of the room.  This forms a gap between the edge of the screed and the wall.  This allows the screed floor to expand and contract as it heats up and cools down.  Without this, there is a possibility that the screed would expand with the heat, push against the walls and crack.

The screeders are booked for Tuesday morning.  By then all of the pipework needs to be clipped to the insulation, so that 70mm of screed can be laid on the floor.  It will take a day or so for the screed to go hard.  During this time, no one will be allowed inside the house.

While the house is out of bounds, we will install the ground loops for the ground source heat pump in the field.

The underfloor heating has been installed upstairs together with the "first fix" plumbing. This means that all the hot and cold water pipes have been run to each of the bathrooms as well as all the drainage. We have used the same installer for the underfloor heating and the first fix plumbing to make life easier.

The underfloor heating has been installed upstairs together with the “first fix” plumbing. This means that all the hot and cold water pipes have been run to each of the bathrooms as well as all the drainage. We have used the same installer for the underfloor heating and the first fix plumbing to make life easier.

The insulation is down and we have put a damproof membrane on the inside of the walls. This end of the building has had some damp problems in the past so we want to be a 100% sure these problems are fixed moving forward. The white pipe is the main water supply for the property and we have temporarily located it to a tap outside while this work is going on.

The insulation is down and we have put a damproof membrane on the inside of the walls. This end of the building has had some damp problems in the past so we want to be a 100% sure these problems are fixed moving forward. The white pipe is the main water supply for the property and we have temporarily located it to a tap outside while this work is going on.

Just the pipes to be installed downstairs before the screed can go down on Tuesday.

Just the pipes to be installed downstairs before the screed can go down on Tuesday.

The insulation is down on the floor. The damproof membrane has been fixed to the walls. There will be two large doors here that open on to the courtyard, but for now we have boarded one up and put a temporary door on the other. If we put the "real" doors on now, they would only get damaged during the building work.

The insulation is down on the floor. The damproof membrane has been fixed to the walls. There will be two large doors here that open on to the courtyard, but for now we have boarded one up and put a temporary door on the other. If we put the “real” doors on now, they would only get damaged during the building work.