Has anyone here had an extension built that is basically a timber box on top of an existing single-storey brick/block section of their house? I'm interested in it as an alternative to a full matched-block extension on top of a garage (access will be through knocking a door through the 1st-floor gable-end wall of the house). Relative to blockwork, is it cheaper, easier, faster, lighter (and so less demanding of foundations)?
Has anyone here had an extension built that is basically a timber box on top of an existing single-storey brick/block section of their house? I'm interested in it as an alternative to a full matched-block extension on top of a garage (access will be through knocking a door through the 1st-floor gable-end wall of the house). Relative to blockwork, is it cheaper, easier, faster, lighter (and so less demanding of foundations)?