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Innovation has come to the pressure washing industry, at least in the commercial industry. Alcoa Architectural Products has developed  a coating of titanium dioxide that is built into the manufacturing process of Building materials. This coating allows the building to keep itself clean, on the outside! The science works like this:

1. Free Radicals Released: When sunlight strikes the titanium dioxide particles embedded in Alcoa’s EcoClean building panels, their electrons get charged. The energy is transferred to oxygen and water molecules in the air, forming free radicals.

2. Search and Destroy: The free radicals attack and oxidize organic pollutants on the panel and in the surrounding atmosphere, breaking them down into benign compounds.

3. Superslick Surface: Free radicals cling together on the EcoClean building panel, creating a slick surface that allows rainwater to wash off in sheets rather than form beads. As the water cascades off the building, dirt remaining on the panel is washed away.                                                                                                       ~Forbes, June 6, 2011 Todd Woody

Alcoa is working on buildings in North America and Europe with companies that are trying to increase their Green image. A self cleaning building that doesn’t require a pressure washing or a reclaim system means less work for exterior cleaning companies. It means a larger initial investment by building owners that will pay for itself in reduced cleaning costs and a friendlier image. Seems like a great idea to me – time to think outside the box everyone. Stagnation will be your defeat!

Morgan C. Booz

AccuWash, LLC

410-482-4367

accuwash1@gmail.com

Roof Cleaning Maryland

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We like to say, “Buyer Beware,” but a lot of consumers just pick what is cheapest. This can royally screw the pooch, so to speak. Check the manufacturer bulletins before proceeding with any home improvement. When it comes to cleaning your house, deck or roof; not every surface can be cleaned the same way. Make sure you hire the most knowledgeable company. In this article, I examine two technical bulletins: Ashpalt Roofing Manufacturer Bulletin (ARMA) Trex Deck Cleaning Guide and the Dryvit Technical Bulletin.

Ashpalt Roofing Manufacturer Bulletin

The Asphalt Roofing Manufacturers Association (ARMA) is a trade organization made up of roofers in North America. They spearhead the research and development within the asphalt roofing industry and as such, has created a cleaning bulletin for informational purposes. ARMA works with shingle manufacturers, lobbyists, the EPA local government to help the asphalt shingle industry grow and thrive.Formed in 1915, ARMA has been involved in the fire resistant shingle trend in the 1970s and the recyclable shingle movement of the 1990s.Today, asphalt shingles make up about 80% of American roofs.

One of ARMA’s publications it the “Algae Discoloration of Roofs,” where the explain what is growing on the shingles and recommend treatment procedures. Gloeocapsa Magma grows on many surfaces, asphalt shingles being an important one, causing dark discoloration and unsightly streaking. Some advancement in algae resistant shingles has been made, but just like gutter guards, each house is its own micro-environment. That means that the pitch, location and age of the roofing material all contribute to how bad the infestation will get. Algae resistant shingles are more expensive than regular shingles and come with a thick warranty detailing ways the manufacturer will not reimburse you if the Gloeocaps magma grows on the roof. ARMA recommends a cleaning method they call temporary and suggest buying algae resistant shingles.

Now, I would compare the cost difference between shingle types and get a quote from a reputable roof cleaner to see which path is right for the house. We live in nature and as such, cannot completely keep life from forming on dwellings. Between the wind and the rain, a shingle roof will only last about 25 years. ARMA is in the business of helping roof shingle manufacturers, not in keeping those shingles free and clear of algae. There must be a community or organization of roof cleaners that has cropped up to tackle this problem!

Dryvit Bulletin: Cleaning and Maintenance

A step down from the roof, after the gutters, are the house walls. Whether it is vinyl, wood, metal, brick, stucco or composite, the long term appearance is due to care and maintenance. Dryvit is a relatively new coating with an acrylic finish that does not require pressure washing. In fact, Dryvit specifically recommends that no pressure is used to clean the surface as high pressurized water can strip away the protective coating. Dryvit helps to insulate a building, which is good for the environment and your pocket.

Trex Deck

One of the most popular decking alternative, Trex Deck is a composite material that holds up better than wood. Like any porous material, it will trap moisture, dirt and grime. Unlike other manufacturers, Trex supplies a detailed cleaning guide based on the type of stain/dirt. They specifically do not recommend the use of a pressure washer or sandblasting as this will put lines in the material.

For More Information

Visit these links for more information about the manufacturers profiled in this article.
Roof Cleaning Technical Bulletins
List of Technical Bulletins from various manufacturers under research page.
Drvit Bulletin: Care and Maintenance
Direct link to the Drvit Technical Bulletin
Asphalt Roofing Manufacturer Association
ARMAs Website
Trex Deck
Trex Decking Website
Morgan Clickner

Office: 410-482-4367

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