Home |
Search |
Today's Posts |
|
UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
|
#1
Posted to uk.d-i-y
|
|||
|
|||
Painting rendering covered with moss
The upper half of my house is rendered, not smooth render but, textured
which seems to enhance moss growth to the extent that the rendering needs painting before the actual paint shows signs of ageing although it will last up to 5 years before the moss growth becomes too bad. The moss grows on the East and North side of the house and has previously just been painted over with 2 coats each time. Before I repeat the cycle, is there anything that can be done to reduce the re-appearance of the moss as in special paint or specific preparation prior to painting? Grateful for any helpful suggestions/tips. -- Peter |
#2
Posted to uk.d-i-y
|
|||
|
|||
Painting rendering covered with moss
On Mon, 16 Aug 2010 08:19:14 +0100, Peter Chapman wrote:
The moss grows on the East and North side of the house ... Do you really mean moss or algae or lichen? Moss usually need more than just a painted surface to grow on. and has previously just been painted over with 2 coats each time. Moss is also a small plant rather than a surface film. How ever painting directly over moss/algae/lichen without first removing it strikes me as a very bad idea. Both Sandtex and Dulux sell fungicdal washes which you apply and rinse off, I'd rinse with a pressure washer but at a distance and not with a "dirt blaster" type nozzle. This is preparation to get the paint film to adhere properly and last without flaking off. If you current paint film is still sound it probably only needs a wash down, gentle pressure washer again. Some paints do have mold/algae inhibitors built in but I don't know how effective they are. The north and east facing wall will be prone to algae I doubt there is much you can do to prevent its growth. -- Cheers Dave. |
#3
Posted to uk.d-i-y
|
|||
|
|||
Painting rendering covered with moss
On Aug 16, 8:19*am, Peter Chapman wrote:
The upper half of my house is rendered, not smooth render but, textured which seems to enhance moss growth to the extent that the rendering needs painting before the actual paint shows signs of ageing although it will last up to 5 years before the moss growth becomes too bad. The moss grows on the East and North side of the house and has previously just been painted over with 2 coats each time. Before I repeat the cycle, is there anything that can be done to reduce the re-appearance of the moss as in special paint or specific preparation prior to painting? Grateful for any helpful suggestions/tips. Textured render is much worse than smooth for this. If you decide to externally insulate, do render it smooth. Cut back overhanging trees and anything else that shades the house, thus increasing dampness. Adding a little powdered copper to the paint works wonders. NT |
#4
Posted to uk.d-i-y
|
|||
|
|||
Painting rendering covered with moss
On 16 Aug, 08:19, Peter Chapman wrote:
The upper half of my house is rendered, not smooth render but, textured which seems to enhance moss growth to the extent that the rendering needs painting before the actual paint shows signs of ageing although it will last up to 5 years before the moss growth becomes too bad. The moss grows on the East and North side of the house and has previously just been painted over with 2 coats each time. Before I repeat the cycle, is there anything that can be done to reduce the re-appearance of the moss as in special paint or specific preparation prior to painting? Grateful for any helpful suggestions/tips. -- Peter Hire yourself a high pressure ware jet machine to get it off. If it won't shift it (and it might not) it will have to be sandblasted off. Painting over moss is a bad idea. Then you need a fungcide or bleach. Then you need to make any repairs to the pointing. Then you need to decide if you need a stablising coat. Then you can repaint it. Keep some bleach in the house and hose down twice a year to keep the stuff away. Get the smooth finish, it's less problems with moss. |
#5
Posted to uk.d-i-y
|
|||
|
|||
Painting rendering covered with moss
In message
, harry writes On 16 Aug, 08:19, Peter Chapman wrote: The upper half of my house is rendered, not smooth render but, textured which seems to enhance moss growth to the extent that the rendering needs painting before the actual paint shows signs of ageing although it will last up to 5 years before the moss growth becomes too bad. The moss grows on the East and North side of the house and has previously just been painted over with 2 coats each time. Before I repeat the cycle, is there anything that can be done to reduce the re-appearance of the moss as in special paint or specific preparation prior to painting? Grateful for any helpful suggestions/tips. -- Peter Hire yourself a high pressure ware jet machine to get it off. If it won't shift it (and it might not) it will have to be sandblasted off. Painting over moss is a bad idea. Then you need a fungcide or bleach. Then you need to make any repairs to the pointing. Then you need to decide if you need a stablising coat. Then you can repaint it. Keep some bleach in the house and hose down twice a year to keep the stuff away. Get the smooth finish, it's less problems with moss. Thanks for the useful suggestions guys. I have a better idea as to how to proceed. -- Peter |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Painting Question- sheetrock walls that were covered with wallpaper | Home Repair | |||
Moss on tarmac | UK diy | |||
How do you get rid of Moss | UK diy | |||
How to get rid off lawn moss | Home Repair | |||
moss in gutters | Home Repair |