Solutions For Above Ground and Below Ground Damp Problems
As a general rule, Newton System 800 – Damp Proof Membranes are suitable for damp proofing treatments only and as such are for use above ground. For below ground applications we would recommend the use of our Newton System 500 – Cavity Drain Waterproofing.
Implications of BS8102:2009
Newton System 800 - Damp Proof Membranes are ideal for treating damp walls above ground
We like any professional damp proofing and waterproofing company are guided by the British Standard 8102:2009 which is the code of Practice for the Protection of Below Ground Structures form Water from the ground. BS8102 tells us that when making a decision as to which system is most suitable in any given scenario we should consider if a structure has external ground levels which are higher than the internal floor level. If so we must consider the earth which bears against the walls to be a conduit or route for water to be delivered against the structure at some time in its life .
It doesn’t matter to what height the earth is bearing as the end result of water against the structure can be flooding if you do not have an appropriate waterproofing system in place.
Preparing For The Future
We also have to consider that all the time earth is against the structure it is not just natural ground water and fluctuating water tables that pose a risk because BS8102 says that we should also consider the future affects of climate change, perched water tables or things like burst water mains which could provide the source of the water. The BS8102 also states that even well drained strata can become saturated. With the aforementioned borne in mind, damp proofing membranes alone are not usually suitable for below ground application and consideration should be given to a waterproofing system like Newton System 500 – Cavity Drain Waterproofing .
It is common for people to question why they should have a full waterproofing system if they have marginally high ground levels and there is no running water present at the time but hopefully the information above will help explain our stance and why a recommendation for a waterproofing system and not damp proofing is best practice in these instances . If you would like to discuss this matter further with someone in our technical department please call 020 7237 1217.
This entry was posted in Advice • May 25th, 2010 • Back To Top
