EPDM Rubber Roofs: The Myth About Proper Care and Maintenance
EPDM is one of the most versatile and long lasting materials ever manufactured for outdoor exposure. Most RV industry experts consider EPDM rubber roofing membrane the most dependable, most cost effective and easiest to maintain roofing material there is. Yet today's average RVer is deluged with a great deal of misinformation. Consequently, RVers are spending millions on unneeded products, many of which can be harmful to EPDM rubber roofs. EPDM rubber roofing membrane is made to last 20 years or longer and has a 10 to12 year guarantee depending on the brand The guarantee does not require the use of any protective 'roof treatment' or 'roof protector' product and recommends only cleaning. Unlike natural rubber (latex) or blends (tires & wiper blades), EPDM does not require periodic applications of any product to protect it from ultra-violet light or ozone. The statement or implication that you should purchase and apply a product to "protect" your rubber roof from the elements is misinformation. Buying and us- ing such a product can be a mistake and may even damage the EPDM membrane. Petroleum Distillates ... Not For EPDM! Petroleum distillates are incompatible with and should never be used on rubber roofs. Normal maintenance is simple, easy, and requires no special material. Clean your roof at least four (4) times annually.
Use RC100 or a mild laundry detergent.
Rinse complete roof with clean water to remove any loose dirt.
Using a medium bristle brush, along with the cleaner mixed with water, scrub the entire roof. Rinse thoroughly with clean water to avoid residue buildup.
For more difficult stains, you may use RC100, mentioned above, in a more concentrated mixture. For stubborn stains, use a cloth dampened with mineral spirits. CAUTION: DO NOT use mineral spirits in a large area or allow it to soak into the membrane. Household bleach can also be used (fully concentrated) and allowed to soak in stubborn stain areas, then scrubbed with a medium bristle brush or a cloth. Rinse thoroughly.
Beware of areas where fruit or tree sap or harsh environmental fallout may stay on the roof for an extended period of time. These conditions may result in unremovable stains. If you are in these conditions, you may have to increase the frequency of your cleaning or premature deterioration may occur. Use caution when working on top of your vehicle. The wet membrane may be extremely slippery.
This article was adapted from a public service announcement provided by Dicer Corporation,303 Products, Inc. and RV Executive Today.