Render, paint best option for exterior of my house

susiej55

do not use this weber monocouche k rend. We were promised no maintenance, now changed to low maintenance . After a few years it is totally unsightly with red and black algae all over it. It appears cleaning at a cost of about £750 every about every 2-3 years will be required. I can send photos

Davesnave

susiej55 wrote: »

do not use this weber monocouche k rend. We were promised no maintenance, now changed to low maintenance . After a few years it is totally unsightly with red and black algae all over it. It appears cleaning at a cost of about £750 every about every 2-3 years will be required. I can send photos

I think how long it lasts without cleaning will partially depend on your location.

Just like all the other finishes, it will do less well in higher altitude places on the western side of the country, or indeed anywhere rainfall and humidity are above average.

Furts

susiej55 wrote: »

do not use this weber monocouche k rend. We were promised no maintenance, now changed to low maintenance . After a few years it is totally unsightly with red and black algae all over it. It appears cleaning at a cost of about £750 every about every 2-3 years will be required. I can send photos

You are being unfair here. There is no such concept as "no maintenance". But since you believe there is then you have to define what you mean by maintenance. If this means you want your render to remain pristine then just like a car it will need cleaning. There is no way the manufacturers of K Rend can be responsible for atmospheric grime, for pollution, and for walls that do not receive direct sunlight.

All this also answers a fundamental. For centuries houses have been built in brick and this is because they do not need cleaning, they do not need pressure washing, they disguise the effects of pollution. Look at the millions of houses in old industrial areas, think of Coronation Street images, and reflect that the Victorians did common sense somewhat better than you. You chose to avoid this reality. Fine by me, but you cannot then complain about the obvious flaws with your decision.

But whatever happens with your cleaning be ultra careful, because if pressure washers are used you run a real risk of ruining your K Rend. If you are doing this every 2-3 years then I would be worried. In essence the cost of renewal will be added to your regular £750 costs!