Lordswood is a post-war suburb on high ground south of Chatham. Exposure shapes its damp.
Lordswood's houses are mostly post-war cavity-wall homes on high ground, exposed to wind and driven rain. Damp there is typically condensation from airtight rooms, plus rain penetration at windows, roofs and cavity-wall defects. Check pointing, window seals, roof and gutters first, then ventilation. A loft-mounted dehumidifier suits owner-occupied homes with lofts and condensation, but not leaks or rentals.
Lordswood is a southern suburb of Chatham about three miles from the town centre, in ME5, with a high street, health centre and leisure centre. The southern Medway suburbs, including Walderslade and Lordswood, sit on the north slope of the North Downs and grew mostly after the Second World War, helped by the M2.
High, open ground means more wind-driven rain than a sheltered river-valley street. Rain pushed sideways can find hairline gaps in pointing, window reveals and old sealant.
Post-war cavity walls are meant to keep rain out of the inner leaf. Problems arise when mortar droppings bridge the cavity, when cavity insulation has been added poorly, or when a raised patio sits above the damp course. If damp shows up in patches on an outside wall after wet, windy spells, suspect penetrating damp and ask a specialist before assuming condensation.
Where walls are well insulated, the cold spots move to windows, lintels and corners. Mould along the top corner of an external wall, or around a window reveal, is a classic pattern, and it is a ventilation problem rather than a wall problem.
Dryzen is a loft-mounted dehumidifier for owner-occupied homes with condensation-type damp. A unit covers up to 150 m2 and removes up to 12 litres a day. It is not suitable for rentals unless the landlord authorises the changes, and it will not fix rain penetration.
Yes, if the outer leaf has cracks or failed pointing, or if the cavity is bridged, rain can reach the inner wall.
Corners are cold and still, so moisture condenses there first. Better ventilation and steady heating usually help, but check for leaks too.
Not always, but poorly installed insulation in exposed locations can let water bridge across. If you suspect it, get an independent assessment.
No. The unit is mounted in the loft, so a loft is required.
Below about 40 percent many people find the air dry, so use a hygrometer and set a sensible target such as 50 to 55 percent. Dryzen's range is adjustable between 40 and 70 percent. For the full evidence, calculator and printable cheat sheet, see The Healthy Home Humidity Guide.
Sources: Wikipedia: Lordswood, Kent; Wikipedia: Medway; GOV.UK: Understanding and addressing the health risks of damp and mould in the home; Property Care Association: Condensation in homes.
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