The white chalky film that sits on your brick right next to the aluminum siding is oxidation.
How to remove aluminum siding stains from brick.
Mix baking soda and dish soap to form a paste.
Professional cleaning may be required to remove this staining.
Once the source is stopped dutchboy recommends.
Apply to the stains and scrub with a soft bristled brush.
How to remove deck stain from aluminum siding hunker.
Scrub the stained area thoroughly.
Mix one part bleach with one part water.
Dec 29 2015 combining brick and siding on a home s exterior looks nice but can cause a few extra maintenance chores for the homeowner.
Saturate a rag with mineral spirits.
Removing stains from brick caused by siding using acid and power washing is a great way to get your house or building looking new again.
Dip a sponge into the solution and apply it to the stain.
Hope it helps someone else because there really isn t much out there on this.
Mix strong detergent such as trisodium phosphate tsp with warm water in a plastic.
Put on a pair of latex or rubber gloves.
Instead several brick cleaners are available that because of special buffers work well without the staining problem.
Here is a quick how to video for removing oxidation from brick on an old house.
Clean the surface of the aluminum siding with a water sprayer.
Scrub at the stain turning and rewetting the rag frequently.
How to remove aluminum siding oxidation from brick step 1.
I d say the first thing to do would be to eliminate the source of the problem either repaint replace or seal the siding.
Brick areas that are stained by chalk run down should be scrubbed with a stiff brush and detergent.
Your local brick dealer probably carries these products.