Mobile home roofing in Phoenix: coatings, roof‑overs and repairs

For many Valley mobile homes, a reflective roof coating is the right first step. We clean the roof, remove loose old coating, treat rust, reset or replace fasteners and seal seams and vents with reinforced fabric and mastic. Then we apply an elastomeric or silicone coating in multiple coats, building up a bright white layer that seals the roof and reflects much of the sun's heat. Owners often notice cooler rooms right away.

Coatings are not permanent. They wear with UV and need renewal on a regular cycle, often every several years depending on the product and thickness. Silicone tends to handle ponding water better, while acrylic elastomerics are often less expensive and easy to recoat. Our pages on elastomeric coatings and silicone systems explain the tradeoffs. A coating only works if the roof underneath is sound, so we check for soft spots and rust-through first.

When a mobile home roof has been coated many times, leaks at the seams in several places, or sags and holds water, a roof-over is often the better long-term choice. A metal roof-over adds a framing system on top of the existing roof, creating a gentle slope, then covers it with new metal panels. The air gap between the old and new roof cuts heat dramatically, and the new pitch sheds monsoon rain instead of letting it pond.

Foam roof-overs spray polyurethane foam directly over the existing roof, then coat it. Foam adds insulation, seals every seam and can be built up to improve drainage. It is lighter than many people expect and works well on flat mobile home roofs. We check community rules first, since some parks set requirements for roof-overs, and we look at the home's structure to confirm it can handle the added weight.

Manufactured home communities are common across the East Valley, especially in Mesa and Apache Junction, and many are age-restricted parks where owners spend part of the year elsewhere. We often schedule work for winter residents before they head out for the summer, or check roofs while they are away. Park rules on hours, parking and noise vary, and we follow them closely.

Many of these homes date from the 1970s through the 1990s and have been coated several times. Over the years we have seen almost every kind of repair, from good ones to tar smeared over a leak. We are careful to remove failed patches before coating, since new coating will not bond to loose tar or old dirt. If water has already damaged the deck, roof deck repair comes first so the new roof has a solid base.

Owners who winter in the Valley often ask us to check the roof before they leave in spring, then again in the fall when they return. Monsoon storms can do a lot of damage to a coated mobile home roof while nobody is home to notice a drip. A quick check, a few sealed seams and a cleared roof edge before you go can save you from coming back to stained ceiling panels and soft flooring.