What's the purpose of painting concrete/cement block black and what are those flaps above the windows for? [more inside]
posted on Mar 5, 2008 - 11 answers

What is the best way to heat a 600 square foot concrete slab? [more inside]
posted on Aug 17, 2007 - 10 answers

I want to keep a few bicycles on my patio (concrete slab): how can I keep them secure? [more inside]
posted on Jun 5, 2007 - 10 answers

Rapid self-design house building in the UK. I have an ill-informed notion that this should be possible by using pre-formed concrete slabs, but can find very little information. Can anyone shed any light on the subject? [more inside]
posted on Aug 9, 2005 - 6 answers