Trailer Types

Trailers get the worst maintenance deal in the vehicle world: they live outside year-round, they carry things worth protecting, and nobody changes their oil. A trailer roof leak doesn't stain a ceiling — it soaks a pallet of product, rots a horse stall floor, or rusts a toolbox full of gear. HaulTight puts a flexible, UV-stable waterproof membrane over the whole box, sized anywhere from one weekend trailer to a hundred-unit fleet.

Enclosed cargo trailers

The standard enclosed cargo box is seamed aluminum or steel sheet over a wood frame, with a roof seam every four feet and a screw line at every seam. Factory seam sealant lasts a few years; after that, every rainstorm finds the cargo. Coating the roof — seams and screw lines at double build, then two field coats — turns a seamed roof into a monolithic one. Contractors who carry tools and materials tell us the coating pays for itself the first time a job site gets three days of rain.

Utility and equipment trailers

Open utility trailers need waterproofing in a different place: the deck. A brushed membrane coat on a plywood deck seals end grain and screw penetrations, sheds rain instead of drinking it, and doubles deck life for the cost of a Saturday. Steel decks and fenders get the same treatment as rust prevention — seal the scale, stop the spread.

Horse and livestock trailers

Two problems, one product. Above: roof seams drip on animals and rot ceiling plywood. Below: urine and washdown water attack the floor from the top while road spray attacks it from beneath. Coating the roof exterior stops the drips; coating the underside of a wood floor (or the topside of steel under mats) seals out the moisture that ends floors — and floor failure in a loaded horse trailer is the accident nobody wants to describe. The cured membrane is easy to rinse clean, which matters in a trailer that gets mucked out weekly.

Travel trailers and toy haulers

Everything on this page applies to the camping side of the family too: rubber, fiberglass, or aluminum travel-trailer roofs take the same membrane with substrate-matched prep, and toy hauler ramp-door seams — a notorious leak point — get the double-build detail treatment.

Fleets and commercial yards

If you run landscaping crews, a rental yard, or a delivery operation, trailer roofs are a line item you can actually control. Coating during the off-season on your own lot costs a fraction of outsourced repairs and keeps units in service. We supply fleet quantities in 5-gallon pails, an application spec any yard hand can follow, and per-unit material estimates so you can budget the whole fleet before you buy a pail. Volume pricing starts at ten trailers — details on the About page.

Weather range

Trailers sit out in everything: July sun that cooks factory sealant, freeze-thaw that jacks seams open, snow load that finds every pinhole, and ponding on flat roofs that never quite drain. The membrane is UV-stable, stays elastic from -40°F to 180°F, and tolerates standing water — because a parked trailer is exactly where water stands.