What Happens During A Damp Survey?

What Happens During A Damp Survey?

What Happens During A Damp Survey?


We all know that should we have a damp problem then we should have an inspection but have you ever wondered what happens during a damp survey?


DH Damp Proofing & Plastering have conducted many damp surveys across London & Berkshire n this blog we will give you some insight as to what we are looking for.


An external inspection will take place to look for signs of moisture ingress caused by a defect to the properties fabric. There are numerous defects that can lead to moisture ingress including but not limited to missing or loose pointing, external render cracks, gutters and rainwater pipes being damaged/defective, damage to or gaps around windows and external doors, damaged chimney stacks, damaged/defective roof coverings, poorly maintained external joinery such as soffits and barge boards, damaged flashings and also areas of the ground level being higher than the damp proof course causing it be bridged/breached.


Although the list of defects being looked for is somewhat extensive this part of the inspection should not take too long for an experienced specialist.


During the internal damp survey of the property, the surveyor should have an idea where to be looking for a damp problem due to their findings from the external inspection or from the property owner advising were the problem is.


The internal inspection will either be a general survey or focused to a particular area of an identified problem. Along with visually surveying the interior of the property a damp meter this can be in both or either radio frequency or conductance mode. The damp meter is used to check for damp in areas where there is no obvious sign of a damp problem or were the damp has had no obvious effect on wallcoverings and decoration. Where there is an obvious damp problem or a high damp reading has been recorded, the meter can be used to identify the extent of the problem both horizontally and vertically. The area of elevated damp readings will be profiled to help identify the type of damp along with the source, the extent of the problem and to put together the best treatment plan.


Sometimes a surveyor may utilise a thermal imaging device which is ideal to identify the type of damp and to find the source of moisture ingress into the property as sometimes it can be down to a hidden pipe that is leaking.


An initial damp survey will not be an invasive procedure meaning at this stage there is no ned for holes to be drilled or for the removal of plaster/skirtings as the inspection is conducted using visual techniques and relevant devices.


During the survey the surveyor will take notes and sometimes photographs and measurements. Once a damp survey has been completed a report will be sent to you detailing the findings along with a quote for any works that are required to fix and damp issues.


We must stress that you should only have a damp survey carried out by an experienced professional to ensure that your property is in the best hands. Using an uncertified and inexperienced  surveyor could lead to further problems and a recurrence of an issues.

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