DIY – Under Roofing Tiles a.b.e.® Construction Chemicals‘ range of Products for Waterproofing Under Roofing Tiles consists of: slatex® 2000slatex® 2000 is a bituminised roofing felt, faced over half its width with a heat-laminated layer of aluminium foil. Long lasting. Prevents ingress of dust. Additional Information Conversion Tables Formulae Trigonometry Tables Heath & Safety