This winter has been one of the wettest on record and in many areas this has resulted in flooding of both commercial and domestic properties on a scale not seen previously. The post-flood clean-up can be just as frustrating and torturous for the occupiers. Getting the property habitable again as quickly as possible can take a lot longer than expected.
There a number of processes that need to happen after a flood such as health & safety assessment, flood damage assessment, removal of stubbornly remaining water and probable strip-out of damaged fixtures and fittings.
In addition to this investigation into the flooding characteristics and future flood risk assessments need to be made, but following the floods of summer 2007 the drying process of the structure was highlighted as a major contributor to the delay in reinstating and reoccupation of flooded properties.
Using Newton Products to Treat Flood Damage
After the stripping out of contaminated finishes and organic material and only after a Decontaminate Building and Sanitation Certificate has been issued can the drying out process begin in earnest.
A saturated wall can take up to a month per inch of its thickness to dry out and even with dehumidifiers, heaters and air changing units this process can still be painfully slow and inhibit any successful reoccupation for a prolonged period of time.
Newton Waterproofing Systems supply a range of cavity membranes that can speed up the reoccupation of flood affected buildings. These High Density Polyethylene (HDPE) membranes are described as cavity membranes because they are moulded in to a dimpled profile which creates an air gap between the membrane and the wall to which it is applied.
Once in place the Newton membranes have two major benefits:
- The first is to provide an impermeable barrier which separates new finishes from the damp structure and will provide an impermeable separation barrier between the damp wall and the new wall finishes which is permanently effective against damp, salts, staining, moulds etc. which could occur during the drying process.
- Secondly, they allow positive vapour pressure to ‘push’ dampness out of the property.
Newton Waterproofing Systems Allow For Rapid Reoccupation Of Flooded Properties
Internal vapour pressure is greater than external vapour pressure and so an equalisation tries to take place that sees vapour within the space created by the membrane studs ‘pushed’ out the building with the vapour moving from inside to outside. This movement of vapour leaving the property does not change the status quo of the wall and no moisture is moved or forced to adjacent areas or higher up the wall. The membranes are attached using special sealed fixings on installation and further fixings can be added retrospectively if required. Metal/timber lining systems, plastered or dab fixed plasterboard and skim finishes match the rooms usual aesthetic appearance, with the peace of mind that the membrane will prolong their longevity and allow the walls to dry naturally behind.
This means that the property can be reoccupied significantly earlier than if the walls were left to dry to a point where new finishes could be applied directly and cuts down significantly on the need for wet trades and the associated drying times.
Our membranes can also be used on solid floor surfaces in isolation or combined with our wall membranes for damp proofing following a flood or as part of a fully designed flood remediation system with the addition of suitable drainage and pumping systems
Further Information About Designing A Flood Management Strategy
For any further information about treating flood damage, please do not hesitate to contact our technical department on 01732 360095 or firstname.lastname@example.org or Request List of Newton Specialist Basement Contractors