Everbuild Lumberjack 5 Litre Masonry and Brick Dry Rot Treatment is a ready-to-use treatment for the eradication of dry rot in masonry and brickwork. The added biocide helps to protect against re-infestation. It is low solvent, low odour, and low VOC, with micro fine actives that penetrate deep into the surface. Coverage: surface spray 1 litre of product per 3 - 4m² of surface. Coverage: Irrigate 10 litres per metre cubed.