🛻 RV Roof Recoating Coverage Calculator
Calculate exactly how much roof coating material you need for your RV recoating project.
| Coating Type | Sq Ft / Gal | Sq M / L | Coats Needed | Dry Mil Thick |
|---|---|---|---|---|
| Elastomeric | 45–55 | 1.1–1.35 | 2–3 | 10–20 mils |
| Liquid EPDM Rubber | 50–60 | 1.22–1.47 | 2 | 15–25 mils |
| TPO Liquid Coating | 55–65 | 1.35–1.60 | 2 | 10–18 mils |
| Liquid Roof (EPDM Blend) | 45–55 | 1.1–1.35 | 2 | 15–20 mils |
| Acrylic | 50–75 | 1.22–1.84 | 2–3 | 8–15 mils |
| Silicone | 60–80 | 1.47–1.96 | 1–2 | 20–40 mils |
| Polyurethane | 40–55 | 0.98–1.35 | 2 | 10–20 mils |
| Fibered Aluminum | 35–50 | 0.86–1.22 | 1–2 | 5–12 mils |
| RV Type | Roof Dimensions | Roof Area | Gals (1 Coat) | Gals (2 Coats) |
|---|---|---|---|---|
| Class B Van | 7–8 ft x 18–22 ft | 126–176 sq ft | 2.5–4 | 5–8 |
| Class B+ / C Small | 8 ft x 24–28 ft | 192–224 sq ft | 4–5 | 8–10 |
| Class C Mid | 8 ft x 30–34 ft | 240–272 sq ft | 5–6 | 10–12 |
| Class A Gas | 8 ft x 35–40 ft | 280–320 sq ft | 5.5–7 | 11–14 |
| Class A Diesel Pusher | 8.5 ft x 38–45 ft | 323–383 sq ft | 6.5–9 | 13–17 |
| Travel Trailer | 7–8 ft x 20–30 ft | 140–240 sq ft | 3–5 | 6–10 |
| Fifth Wheel | 8 ft x 28–38 ft | 224–304 sq ft | 4.5–7 | 9–14 |
| Toy Hauler | 8 ft x 32–40 ft | 256–320 sq ft | 5–7 | 10–14 |
| Container Size | Volume | Coverage (1 Coat) | Coverage (2 Coats) |
|---|---|---|---|
| Quart (qt) | 0.25 gal / 0.95 L | 11–18 sq ft | 6–9 sq ft |
| Gallon (gal) | 1 gal / 3.79 L | 45–65 sq ft | 22–32 sq ft |
| 5-Gallon Pail | 5 gal / 18.9 L | 225–325 sq ft | 112–162 sq ft |
| 55-Gallon Drum | 55 gal / 208 L | 2,475–3,575 sq ft | 1,237–1,787 sq ft |
Note: Here are tips based on real experiences of owners of RV and info directly from the makers.
Every owner of RV will likely face the topic of care for the Roof. That simply belongs to the life with such vehicle. The Roof always suffers because of sun rays and rain which over the years causes wear.
How to Care for Your RV Roof
Good care helps right away in several spots: it seals against water, reflects UV rays and even lowers the costs for cooling. The reflecting materials really matter; they stop the sun from warming the inside of the vehicle, which makes a clear difference.
Before choosing a product, first check what type of Roof is on the RV. Coating from EPDM-rubber is very common, and one can spot it easily. It has a thin white layer on top and a much more thick black layer below.
The simplest way to spot it? Look where the sheets fold around a fan or window in the Roof. TPO is another commonly used material.
The most many coatings work for both, although not all, so it pays to check what the label says. A quick phone call to the maker can explain the right options for the owner.
The market offers a rich range. Liquid Rubber offers coating for RV Roofs, that protects against water resists UV damage and stays long without big effort, its one-quart version covers around 50 square feet. Kool Seal has elastic white coating, that revives old surfaces while reflecting heat and UV rays.
Tropicool from Henry is based on silicone and has a loyal following among users. Dicor built a good name for rubber seals of Roofs, and Geocel Proflex is another good option. RV-Tech, liquid rubber coating, skips the prep step.
It is really practical.
Prep must not be ignored. Washing the Roof with a gentle cleaner before you apply works surprisingly well. Some products require primer first, for instance, Liquid Rubber has EPDM primer, that must go before the main coating, and after it dries, comes the sheet.
On the other hand, surfaces like new Eternabond-tape over TPO does not accept coating without prior treatment.
Quality splits the good from the bad. Cheap coatings crack in months and leave you alone to scratch. Those that need renewal every too years do not deserve the hassle.
Good coating can last 15 to 25 years without need of new use. Hardly Tech makes coatings and seals for RV Roofs, that last up to 15 years without cracking or tearing, and its tools help owners redo the Roof for a small part of thereplacement cost, they work for RVs, mobile homes, tents and sheds.
Coating of the Roof gives a feeling of safety, although some see it as just a quick fix. When the Roof really suffers, a full redo of the coating could be the wiser step.
