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What are the benefits of powerwashing a house's exterior made of hardiplank (and brick)? I'm not planning on having it painted.
In the Raleigh, NC area many folks have their homes powerwashed after the pollen season in the spring. Windows included, but I'm just wondering what benefit it holds for the Hardiplank.
someone once told me that it would be like never washing your car. But I'm not sure what that meant.
pressure washing will make the house look better and in certain cases it will restore the sidings by washing the dirt,pollen, mold etc. off. if one is allergic to pollen then pressure washing after spring will help removing the allergens. i live in raleigh but there are quite a few people on my street pressure washes the exterior every year.
I'm not a big fan of pressurewashing, too much can go wrong. The mortar between bricks isn't terribly strong in some houses, and too much pressure could cause problems. I'd sooner use a hose end sprayer, some cleaner like spi - n - span, and maybe a brush on a handle.
To give you an idea of why you might consider washing, in south Florida our cement roof tiles had to be pressure washed fairly regularly to remove the pollen, dirt, soot from everglades fires, and sooty mold. Otherwise, they turned dark and molds could get a start. Similarly, the white top of my van roof was filthy within six to eight weeks after washing. Since we moved to rural Alabama, the top of my van roof has remained clean for over a year and a half, and when I finally washed the van this spring, it wasn't as dirty as it would have been in south Florida six weeks after washing. Air pollution affects houses as well as vehicles. If you live in a polluted area, washing can be a big benefit.
ASs long as you use the right amount of poressure when not repainting it workds great and gets dirt that you would otherwise.That is the key ;using the right amount of pressure and a good wash solution.
One should point out that POWERwashing and PRESSUREwashing are not in fact the same thing. Powerwashing does not use high pressure, and should be a safe method to clean brick or hardiplank, which is fiber cement board that does not hold water like hardboard.
I've used my pressure washer to move dirt from the concrete foundation and hardie board. It does a great job. Just make sure to keep the nozzle at least a foot off of the surface to prevent etching, and it will make it look like new! I even pressure washed a portion of brick and mortar that was getting dirty and it did a great job, did not damage the mortar at all.
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