Bond-It Damp Proof Course (DPC) Membrane 100mm X 30 Metre roll - Flexible, Durable, Safe and Clean to Handle Meets BS6515. Embossed to Assist Mortar Adhesion - Cost Effective dpc, Black, DPC100

Product Information

A DPC should be provided a minimum 150mm above adjoining surfaces and linked with the DPM in solid floors. It should be noted that breaches of the 150mm rule are the sort of thing that is noticed by Surveyors when valuing a property and it can lead to a reduced valuation or a requirement for remedial work to be undertaken. For external walls the DPC should be applied 150mm a fresh bed of mortar, completely free of projections that may puncture the material or impede the material from lying flat. When joining two pieces of DPC they should be lapped over each other by at least 100mm. The Building Regulations require at least 150mm between the dpc and the ground or any paving. This is what is known as 'Best Practice'. However, there are situations where it is just not possible, or practical, to maintain this regulation. On professional work, and new build projects, every possible effort should be made to ensure the 150mm rule is not breached, but, for small, domestic projects, such as a driveway or patio, there are cases where keeping the paving to 150mm below dpc would involve a huge amount of work that cannot be justified. In such cases, the 150mm rule can be 'bent' a little, but with the following provisos...

DPC (Damp proof course) is used when a physical barrier is required to prevent moisture travelling up building walls. Most existing constructions should have a form of DPC already in situation, however this product will be required for new wall constructions to prevent an issues with rising damp. The paving/ground level should always be at least 75mm below the DPC. Anything less than that is just asking for trouble.*Damp proofing membrane is sometimes called DPM for short, or DPC membrane as shorthand for 'damp proof course membrane'. A damp course is not the only method of damp proofing for the home. Our range of damp proof products also includes chimney pots, which can help to keep adverse weather from entering the property via the chimney.

Unfortunately, We Cannot Guarantee Next Working Day - you will be notified if we can't fulfill this.DPC installation is simplest in the new construction process. For external walls, the DPC should be applied 150mm above the external ground level. You need to ensure it is linked with the DPM in solid floors. Installation should be according to the code of practice CP102:1973 and normal DPC good practice procedures set in BS 5628 should be followed. Use of an insulated cavity closer would have prevented these last 2 problems. For more information about preventing cold bridges, refer to our Registered Construction Details.