We were going to be staying in the marina throughout the winter, which only meant one thing we needed to insulate the boat.
We bought a big role of closed cell foam from kiravans.co.uk it had the advantage that it had a silver outside layer, so that it would reflect the heat, back into the boat, while on the other side, it was nice and sticky so that we could stick it to the side of the hull with minimum of fuss.
As with all jobs, we played the boat game, in that we had to move things around so that we could create a space to work in. Once we had cleared out the v-birth I got stuck in. First removing the water that had collected at the bottom of the v-birth, then dirt using just a bit of soapy water to clean the sides, then lastly spraying Windolene which has vinegar in it to remove any grease. Once all the cleaning was done, we needed to cut the insulation into the correct sizes for our boat so that we could stick the insulation to the sides.
Beverley insulated all of the v-birth, while I insulated our small electrical cupboard, we then moved into the main cabin, insulating where we could until we had no more insulation material left.