The vinyl siding on our house needed cleaning. The north facing side is covered by shade. It developed algae and mold due to the lack of sun and too much moisture. After scrubbing to no avail, I opted to get a cleaner to loosen the build-up. I bought E-Z House Wash by Mold Armor because the images on the label looked exactly like what I was cleaning. The product is easy to use but the scent is obnoxious and the liquid stings your skin.
E-Z House Wash is applied to the vinyl siding and rinsed after 10 minutes with clean water. The bottle is wash and rinse capable with its attached hose adapter. The process seemed simple enough and worked pretty well on areas of little to no build-up. However, the sprayer did not give complete coverage and required more than one application and extra scrubbing.
The label states one bottle will clean up to 4, 000 square feet and the sprayer will reach the second story without a ladder. I was only able to reach just above the second story windows without a ladder. I was not able to clean the eaves on the second story at all. The product ran out at about 1, 000 square feet.
The scent is over-powering. The label states to wear eye, nose, and mouth protection. I wore a hat, goggles, facemask, gloves, a long sleeve denim shirt, and jeans. I could still smell the Clorox/ammonia/sulfur-like odor even with the mask. Some back spray occurred and got on my cheeks. The chemical stung forcing me to stop and wash it off with soap and water.
As you can see from my images, the Mold Armor E-Z House Wash did help break down the algae. The last image was taken after two applications and scrubbing the area by hand.
I believe the E-Z House Wash works but it is not spray on and rinse off for areas with extreme build-up. I would buy it for light maintenance cleaning. However, if your house has algae build-up, I would look for another product.