Koster Polysil TG 500 anti-lime – is a deeply penetrating primer for damp, salt-containing substrates and an anti-lime treatment for new concrete which also acts as a...
Category - How To
Designed to be used with all roof tiles, new or existing; ISOLINE® LOW LINE, lightweight bituminous sub-roof is fixed below the primary tile or slate roof covering...
‘HOW TO’ air source heat pump installation videos from DiversiTech. This one features mounting an ASHP unit using adjustable rubber support feet.
Koster Waterstop is a fast curing, expanding plug and repair mortar. Koster Waterstop can be used to seal water leakages in concrete, masonry and natural stone...
DiversiTech Air Source Heat Pumps – Installing external TRUNKING
This ‘how to’ video features installing external trunking to protect your pipework and insulation – and to leave your install with that aesthetic feel.
How to insulate a terrace to achieve low U-values while maintaining a minimal insulation build-up?
Deck-VQ gives the opportunity to achieve low U-values within minimal insulation build-up, which is vital in many refurbishment and new build projects where there are...


