We finally restarted our building work on our house again, after several months of rescuing our Financial Crisis caused by the soaring runaway energy prices. We had the delivery of our second-hand PU foam boards way back last year and we have now started making use of it.

We decided to tackle the section of the roof rafters upstairs over the front door region of the house. This is section B, C and D. Section C is actually a gable internal end to the roof as the rest of the hip roof is the overhanging porch on the front of our house.

This meant that we had to build an additional internal wooden framework to form the backbone of the wall for that room, and then we proceeded to fill it up with 300mm thick of PU foam boards pieces. Then, the sloping rafters next to this gable end were also filled up with more PU foam bits and pieces.


It was during this task that we were wondering to how much material we got outside and whether we were using it up too quickly to make it last long enough to accommodate the rest of the whole roof including making sure we had enough to do the Great Room which so far, haven’t had any insulation inserted yet. On conclusion, we decided to be careful and from now on, only put in one layer of PU foam boards in all the remaining rafters until we have done the Great Room and we can know to how much left-over we got. We then can go back and fill in another thinner layer in certain places to fill them up a bit more and use up the last of the foam boards pieces.

Another aspect that we are having to be careful, is making use of any larger single piece of boards because we need to make sure we can make single “triangular” fillers for the rafters that contains either a valley or a hip. It would be quite tricky to try to insert small pieces, pushing them upwards against gravity and holding them there while the glue sets. Very awkward so hence why we are putting to one side any larger single pieces.

This stage of our building work will be a long job, not at least because we are also doing our computer work alongside at the same time so we will only write a blog report every so often as we finish major sections of the rafters, like for example, We have done as far as possible for the moment, the B, C and D sections and we have even done some of the E section as well. We will just carry on and drop a quick update now and again.

By Shaun

Leave a Reply