Application Instructions


SUPERIOR RV LIQUID RUBBER ROOFING

GENERAL INSTRUCTIONS

These pages provide all the instructions for the successful application of Superior RV Liquid Rubber Roofing for each roof type. Good adhesion and longevity of this system is largely reliant upon proper surface preparation. Except for bare plywood surfaces, coverage for Superior RV is typically 42 square feet per gallon for a two coat application. EPDM rubber, and previously applied coatings require Superior 100 2-Part Epoxy Primer before coating. Coverage for mixed primer is approximately 200 square feet per gallon. When coating surfaces that require primer, less Superior RV is needed.

  • Apply in a well-ventilated area. Do not use indoors unless in a paint booth with approved ventilation. Extinguish all sources of ignition. Uncured product is a flammable liquid
  • Do NOT use silicone as a caulk or sealant. Remove any previously applied silicone.
  • Do NOT use commercial RV roof cleaners to clean a roof before coating. Use Tide® powdered laundry detergent and warm water only. Pressure wash or scrub with a deck brush.
  • Do NOT apply this product to SUPERFLEX TPO or DIFLEX II roof membranes. They have an “orange peel” textured surface. Check your owner’s manual or consult your RV dealer if you are in doubt.
  • Do NOT coat over a roof that has been leaking without first checking to see if there is water trapped in the underlay or ceiling insulation. Once the roof has been coated, trapped water will not be able to escape causing bubbles and can eventually rot the roof members and underlayment, causing catastrophic roof failure.
  • Do NOT assume that a roof is clean because it "looks" clean. Silicone and residue from previous roof treatments, oily residues from vehicle exhaust, and tree saps can be present but invisible and they can ruin your restoration project.
  • DO NOT USE SUPERIOR RV LIQUID RUBBER ROOF OR THE PRIMER IF YOUR ROOF HAS BEEN PREVIOUSLY COATED WITH A SILICONE BASED COATING
IMPORTANT! Identify your roof membrane!

Is it TPO or EPDM?  See "How to Identify My Roof Membrane" in Menu

Do NOT apply this product to SUPERFLEX TPO or DIFLEX II roof membranes

SUPERIOR 100 FLEXIBLE EPOXY PRIMER MUST be applied to all EPDM and previously Acrylic coated membranes.


For clean-up, you may use Xylene® or mineral spirits. Use masking tape and plastic sheet to protect painted areas of your RV


Keep product at room temperature for ease of application.
If you have any questions or concerns, please contact us by email at: info@superiorroofproducts.com or toll free 1(844) 321-7332.


SURFACE PREPARATION

EPDM, TPO, Aluminum, Fiberglass

•Remove any and all silicone sealant (nothing sticks to silicone). Remove all loose caulking, Caulking or sealants that are in good condition and adhering well can remain in place.

• Make sure the existing coating is adhering well to the roof and is not peeling or flaking. All peeling, flaking or poorly adhering coatings and caulking MUST be completely removed
• Pressure wash or scrub with a deck brush, the entire roof surface using warm water and Tide® powdered laundry detergent or TSP. Do not use liquid dish detergent, solvents or RV roof cleaners.
• Flush clean with fresh water.
• Allow to dry completely before applying Superior RV or Superior 100 Primer
• Remove vent covers (e.g. Maxair® or similar). If you are concerned about getting coating on the side of the vehicle, we suggest attaching plastic vapor barrier as an apron around the edge of the roof using masking tape.

OSB and Plywood (Bare)
• Make sure wood is moisture free. Clean, dry plywood requires no preparation. As dry plywood is very absorbent, plan on using 20 to 30% more material than you would for regular roof surfaces.
• New OSB usually has a clear temporary waterproof coating on it which must be sanded prior to coating.

FIBERGLASS

• Remove all oily residue, silicone sealant, loose caulking and any coatings that are peeling.
• If surface is shiny, sand with 120 grit sandpaper until gloss is removed.
• Wipe off dust thoroughly.
• Do NOT use RV rubber roof cleaners as many of these contain protectants that prevent adhesion of coatings.
• Use Tide® laundry detergent or TSP and warm water, scrub or pressure wash roof and remove as much surface dirt as possible.
• Flush with clean water and allow to dry completely.


How to Apply Superior RV Liquid Roof Coating

TPO RUBBER (Not Previously Coated)

• Make sure your roof is actually TPO rubber and not EPDM rubber as EPDM requires a primer and TPO does not
• Do NOT apply this product to SUPERFLEX TPO or DIFLEX II roof membranes. They have an “orange peel” textured surface. Check your owner’s manual or consult your RV dealer if you are in doubt.
• Keep product at room temperature for ease of application.
• Stir gently about 1 minute, try not to introduce air bubbles
• Using a brush, apply a coat of Superior RV to all seams, depressions and around all objects protruding through roof (vents, skylights, pipes, etc.), and any areas that cannot be reached with roller.
• Allow to dry at least 3 hours.
• Pour Superior RV directly onto the roof surface and spread out with a long nap roller. Do not press too hard. Allow the coating to flow out on its own and self-level.
• Do not keep back rolling as the Superior RV will become too thin. Remember, this is NOT a paint.
• Wait at least 24 hours before applying a second coat.
• Note: If you are unable to complete the second coat because of time constraints or inclement weather, the second coat can be applied at any time after the first coat has cured as long as the surface is clean and dry.


EPDM, ALL PREVIOUSLY COATED MEMBRANES
• Make sure your roof is EPDM rubber and not TPO rubber as EPDM requires a primer
• Use the Superior 100 primer on EPDM rubber before applying Superior RV Liquid Roof Coating®. Superior 100 Flexible Epoxy Primer is heat and moisture sensitive.
• High temperatures and humidity will accelerate the cure time and pot life. Low temperature and or low humidity will extend the cure time.
• Recommended surface temperature should be above 50oF (10oC) and at least 5oF above the dew point.
• Store product at room temperature. If Part “A” is too thick, place can in hot tap water for 30 minutes to reduce thickness.
• Superior 100 must be top-coated with Superior RV Liquid Rubber Roof Coating between 22 and 30 hours after application. After that, it must be sanded or Superior RV may not adhere.
• Surface is ready to topcoat when dry to the touch, but slightly tacky to walk on.

Primer Mixing:
• Pick a day when there is no chance of rain. Apply primer typically after 11:00 AM so it will be cured enough by 10 AM the following day (or after dew has evaporated) before applying topcoat.
• Do not mix more material that you can use in 1⁄2 hour.
• Use two identical disposable containers, such as 1 qt. plastic measuring cups, pour equal amounts Part ”A” by volume in one, and Part “B” by volume in the other.
• Pour each of these into a working container large enough to accommodate both “A” and “B”.
• Mix thoroughly for one minute.

Caution: Do not measure by weighing. Measure by volume only.

Primer Application

  • Pour and spread the primer using either a brush, roller or squeegee, making sure entire surface is covered.
  • One heavy coat is adequate and will self-level to a glossy finish.
  • Do not try to spread the product too thin.
  • Allow to dry 22 to 30 hours or until dry to the touch.

Caution: Superior 100 Primer must be top-coated with Superior RV Liquid Rubber Roof Coating between 22 and 30 hours after application or it will have to be sanded to allow proper adhesion of the roof coating.

Apply Superior RV Liquid Roof Coating after Primer

• Keep product at room temperature for ease of application.
• Stir gently about 1 minute, try not to introduce air bubbles
• Using a brush, apply a coat of Superior RV to all seams, depressions and around all objects protruding through roof (vents, skylights, pipes, etc.), and any areas that cannot be reached with roller.
• Allow to dry at least 3 hours.
• Pour Superior RV directly onto the roof surface and spread out with a long nap roller. Do not press too hard. Allow the coating to flow out on its own and self-level.
• Do not keep back rolling as the Superior RV will become too thin. Remember, this is NOT a paint.
• Wait at least 24 hours before applying a second coat.
• Note: If you are unable to complete the second coat because of time constraints or inclement weather, the second coat can be applied at any time after the first coat has cured as long as the surface is clean and dry.
Apply Superior RV Liquid Rubber Roof as per TPO instruction above.


OSB / PLYWOOD
• Apply a coat of Superior RV Liquid Roofing to all seams and joints Imbed Superior SPUNLACE fabric into the coating over all seams and joints. Pay special attention to coating the perimeter of all objects that protrude through the roof (vents, pipes, a/c units etc.) as these are big potential leak areas.
• Force coating into joints and crevices with a brush.
• Allow 24 -36 hours to joints and seams to set
• Apply the first coat of Superior RV Liquid Roofing over the entire roof making sure fabric is well coated and allow 36 hours for complete cure before adding more coating.
• Apply a second, heavier coat over entire surface by pouring and spreading with a long nap roller. Do not press too hard.
• Allow the coating to flow out on its own and self-level.
• Do not keep back rolling as the Superior RV will become too thin. Remember, this is NOT a paint.
• Allow to dry at least 24 hours before taking the vehicle on the road.

NOTE:

Inspect all joints, seams and flashings around vents, a/c unit and pipes. If necessary, brush with additional Superior RV Liquid Roof coating or use a compatible joint sealer (i.e. DAP 74810) available at most hardware, Home Depot, ACE, Lowes