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Frequently Asked Questions (FAQ)

Not ALL pressure cleaning companies are created equal. Hoover Pressure Cleaning IS DIFFERENT...our methods are safe, environmentally friendly and we are reputable.


How should my tile roof be cleaned?

Although there are different manufacturers of roof tiles, we know of only one approved procedure, pressure washing, not (heavy) chemical cleaning. Boral is by far the largest manufacturer of roof tiles in the State of Florida .

They recommend a thorough pressure cleaning not to exceed 1200 P.S.I to remove the dirt, fungus and all chemical residue. This procedure extends the life of the glazing on the tile and prevents serious damage to your metal trim, valley flashing and vents that are critical to the life of your roof system. Many companies say they pressure clean when in fact they are heavy chemical applicators. We suggest when getting quotes for pressure cleaning you should ask two questions. #1 Is chlorine being applied? #2 Is it necessary to cover plants? (See FAQ #4) The way they respond to these questions will tell you whether they are pressure cleaners or chemical cleaners. If they use chemical or they cover your plants or have someone watering your plants while another applies chemical, they are chemical cleaners. We highly recommend you wait no longer than 3 years for cleaning. In addition, we offer the Roof-A-Cide product that can be applied after cleaning.


Can you apply a sealer that will keep the fungus from returning?

We are pleased to say both the tile & shingle manufacturers have approved a product called Roof-A-Cide that will not void your warranty with proper application (we are an authorized applicator of Roof-A-Cide) and is Guaranteed not only by us, but also by the Roof-A-Cide company for a minimum of 2 years (no warranty on white roofs).  Roof-a-Cide is a Green Product that is EPA approved, non-toxic to landscaping or the environment.  Should you decide to utilize Roof-A-Cide we offer a discount on your final roof cleaning.  If your roof is new (tile or shingle) or we determine it does not need a cleaning we can apply immediately and therefore preventing the need of cleaning. The advantage of this product will help eliminate wear & tear and repeated full cleanings of your roof.   In addition, at this time, (according to the manufacturer www.monierlifetile.com), to their knowledge, there is currently no known life time products on the market that keep fungus from returning.

Shingle roofs may have copper oxide in the granules that effectively discourage fungus for approximately 5-7 years.  (See FAQ #5 Can a shingle roof be cleaned without damaging it?)  We can also apply the Roof-A-Cide product to guarantee fungus will not return.  The advantage of doing so will extend the life of your shingle roof.  Some pressure cleaners put pool algaecides or additional chlorine (potentially damaging) on after cleaning the surface. We find minimal if no success in most circumstances with these procedures. Exteriors can have a special algaecide added in the paint that probably will help.


Do you offer GREEN Products that are non-toxic and EPA approved?

YES, as a company that believes in “Plant Friendly” we are always on the lookout for the best products.  Our Roof Restore for shingle roof cleaning and Roof-A-Cide prevention are both EPA approved , non-toxic and safe for the environment, children & pets.  For more information www.roof-a-cide.com