This blog has been quiet for the last few months as I’ve been working on a big, fairly dull, project.

We’ve got a concrete sectional shed at the bottom of the garden that was put up by the previous owners of the house. Nice building – suspended ceiling, chipboard floor, plasterboard walls, good lights and lots of electrical sockets. Only problem was damp.

There was a damp proof membrane in the concrete floor slab. One problem was the membrane was 150mm underground. One end of the slab was embedded under a retaining wall; the uphill side of the building was paved level with the slab and had no drainage other than across the top of the slab.