Bricks, Masonry, Asphalt and Concrete - Strange discolouration on decorative front

Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.



PDA
MarcGuay
10-29-09, 04:29 PM
Hi everyone,

Recently, after a heavy rainfall, I noticed a strange discolouration on the front of the house. It's localized to the pinkish decorative front blocks and could be related to recent construction work done next door. (That white spakling substance could be the cause?). I'm wondering what's going on and if I should be worried about it.

Thanks,
Marc

http://farm3.static.flickr.com/2622/4056116345_92aba0e4e1_o.jpg

http://farm3.static.flickr.com/2543/4056857168_f1682d4cbc_o.jpg

Pulpo
11-01-09, 10:58 AM
It doesn't look like it's anything to worry about. There were probably some heavy winds along with the rain, so whatever they used was pushed in your direction.
cpmasonry
11-03-09, 08:49 AM
What I see is called efflourescence.... Its common here where I live and is nothing to worry about. It leaches out of the masonry when saturated. Its ugly to look at and the best way Ive found to remove is to acid wash it. (muratic or hydrochloric mixture) and then pressure wash it clean... when its COMPLETELY dry, seal it with a masonry sealer. wait til summer when there is no chance of rain so it can completely dry. good luck
I noticed you have it under your window sill as well. or thats what it looks like.