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Thanks both. In fact I have a detailed borehole survey being made on-site this week. We may have a situation where a concrete barn floor is sitting on a meter or so of clay which is sitting on a rock layer. We are planning to place a single storey timber frame house on the concrete floor. It...

Hi, I had a quick search but couldn't spot anything that I could understand! Briefly: a: What mechanism causes clays to swell when damp? b: What is the maximum pressure that swelling clay can exert? c: Do cellar floors lift in the centre from heave because the walls are sufficiently loaded to...

Clearly I can't post an email address. However my name is real, and Google is your friend. Richard Hathway RHAD MBCS CITP

Hello oldestguy, What sort of UK job title or firm should I be looking for in order to get the required expertise? Thanks,

Hi Mike, The current slab is perfectly fine - level and no sign of damage. It has been there maybe 15 years. I assume that if there is heave, it lifts the rock layer below evenly. Or the sandwich nature modifies the heave properties in some way. If I use piling, it has to be decoupled from...

Hi, This is my first post here, so please don't kill me if I break any etiquette rules! I am converting a UK 13 metre x 9 metre barn into a small single storey timber frame house. The frame is a Wiki House CNC 'jigsaw kit' design. My structural engineer says that there will be about 20 - 30...