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Harcon NPU is a BBA approved, high performance, non permeable underlay. It is suitable for use on both warm and cold roof applications and is completely watertight.
Excellent nail and tear strengthComplies with BS5534:2014Entirely watertight
7.30am - 5.30pm MONDAY to THURSDAY
7.30am - 5pm FRIDAY
7.30am - 4pm SATURDAY (except Shrewsbury 8am - 4pm)
10am - 4pm SUNDAY