Would I be correct in saying, bricks to be used when building an extension (trench foundation) :- Below ground 2/3 courses of some type of frost-proof bricks,
2 courses of blue engineering bricks, normal facing bricks for the rest. Also, inner skin is thermal blocks, but can these be used for the inner skin below ground and at damp course level, or should concrete blocks be used at this point ? TIA, Simon.- posted
18 years ago