Builders Merchants Journal – BMJ Publishing to Builders Merchants and the UK merchanting industry for more than 95 years
The D-Sign Top Hat Unit is made by hand from high performance flexible dpc material.
It is available in a range of sizes from 40 to 225mm including the most popular 110mm to accommodate pipe penetrations through brickwork or concrete to ensure a water or gas tight seal for conduits.
Most sizes are held in stock ensuring rapid delivery.
The types of detailing recommended in BS 5628 part 3 include the use of factory welded preformed unites for use where there are projecting columns within cavities, brickwork supports, arches and openings, ramp access, expansion joints, intermediate fire barriers, roof details and copings.
