Hi all, I am in the process of designing a summer house for next spring and need some advice. My idea is to lay a concrete base of 100mm with steel mesh and then to have a short brick plinth on which would stand stud frames which would then be boarded and clad in plastic shiplap.my question is what should i use as a moisture barrier between the brick and stud frames. A friend suggested some sort of metal channel. does any one know if such a product exists. Thanks for any advice/help you may be able to pass on.