Hi
I'm having a log cabin erected in my garden 3.5 x 5 metres and will have a concret slab as the base, if I put down a membrane it will only be under the base and not go up the sides ( as once I take the shuttering off there will be nothing to hold the membrane up) and damp will get in through the sides of the base. Is there another way that I've not thought of. Also will 100mm thick be enough.
I'm having a log cabin erected in my garden 3.5 x 5 metres and will have a concret slab as the base, if I put down a membrane it will only be under the base and not go up the sides ( as once I take the shuttering off there will be nothing to hold the membrane up) and damp will get in through the sides of the base. Is there another way that I've not thought of. Also will 100mm thick be enough.