Extremely thick (minimum 1000 gauge!) polythene approved by the BBA (British Board of Agreement) for use as a damp proofing course (DPM) or for other waterproofing. Made from recycled polythene supplied as a 4-metre-wide x 25-metre-long sheet multi-folded on to a 1-metre-wide roll. Available in black or blue. Handypack folded sheet also now available in blue.
There are 3 sizes/products in this category: