A step by step account of laying the slab as part of a diy house extension project. Dunbrik a1 installation guide page 1 sep. Dunbrik a1 concrete flue liners for domestic chimneys installation guide topguard bird cowl cannon head.
Quality assurance and certification. Bba certified products that meet nhbc technical standards and building regulations. The construction industry training board. Known as citb bircham newton, kings lynn, norfolk pe31 6rh citb is registered as a charity in england and.
How to mix cement mortar for diy in the home how to mix sand and cement mortar by hand as well as small cement mixes in a bucket or on a builders spot. How to draw your own building control drawings for a house extension.