15/06/2026
Flood Prevention
The property is a new build beach front property in Bracklesham Bay near Portsmouth, which backs directly onto the beach. The area has a long history of coastal flooding, with significant events recorded in the 20th and 21st centuries, prompting major flood defence interventions in the area.
the solution was to install Technitherm as part of an overall flood defence system, the first 1600mm of cavity was capped with a cavity closer, which was to be then filled below this with our Technitherm® Cavity Wall System, KIWA Certificate No. BAW-18-037-S-A-UK and BAW-18-038-S-A-UK.
Our approved contractor Prize Insulation Ltd then injected Technitherm® into the 150-160mm cavity through a series of pre-drilled 12mm holes drilled through the mortar joints of the external blockwork, giving structural stabilisation, thermal insulation, and flood prevention all in one package. Above the cavity closer, standard PIR board had been fitted by the builders for the rest of the thermal insulation up to the soffit.
The outcome is the property is insulated to a higher
level than required for new build Properties.
by building regulations.
Technitherm® at 150mm average has
an uvalue of 0.15, and due
to the stabilisation of Technitherm® the
walls are also now stronger and more secure.
Not only does this improve the properties
energy efficiency and EPC rating, but also
prevents any deterioration of the walls build
structure after any potential future floods,
which in turn makes the cleanup process post flood much faster, and less costly.