This was a full Kemper resin v210 system with vapour barrier and insulation boards to fall that we installed in Camden town in London.
Kemperol systems are very robust and long lasting. Doctor Kemper invented this system back in the 1940s where it was used on the volts wages main factory in Germany. This same v210 system was installed in 1946 and to this day has not had a leak so although this system comes with a 15 year guarantee the above suggests that this system will really stand the test of time
Check it out for yourself at www.kempersystem.co.uk