Another big job on the bus is now complete – the first layer of insulation is installed!
I am using Foilboard (polystyrene sheets with aluminium foil on each side) in the cavities of the walls and the roof for a number of reasons but mostly because it won’t hold moisture and it won’t sag over time with gravity and the movement of the bus like woollen batts would.
This was a time consuming fiddly job especially on the walls because there were so many odd shapes and angles to measure and cut. I tried to get it as tight a fit as I could.
I also put the insulation over some of the windows at the back that will have walls and cabinets etc built in front of them.

Hi Dyani ✨
We have really enjoyed watching your videos and learning how you converted your Coaster. Thank you for creating your thorough resources to help others create a beautiful home on wheels 🤗
We are currently looking at the foil board, and are wondering if you could tell us how many you required? We are creating a budget, and like you, love the foil board product.
Sending love ❤️
Victoria and Danny.
Sorry for the delayed reply guys. I have been sick this past week.
I used almost 6 full sheets of the 25mm Foilboard to do mine. I also used about 2/3 of a 15mm sheet to cover some of the windows at the back.