How metal roofs fail
Most barn and shop roofs are exposed-fastener metal panels. Over time, screw washers dry and crack, screws loosen with heat and cold, seams open up and rust starts where the finish is worn. Leaks start small and get worse.
Coating vs replacing
If the panels are still solid and attached, a coating system can seal them and add years of life for much less than new metal. If panels are rusted through or loose from the framing, they need replacement first.
The process
- Wash the roof and remove loose rust and flaking paint
- Prime rusted areas with a rust-inhibiting primer
- Tighten or replace fasteners
- Seal fasteners, seams, laps and ridge caps
- Apply a reflective elastomeric topcoat
Cooler barns
A white roof coating can make a metal building noticeably cooler inside during summer — helpful for animals, stored hay and anyone working in a shop.
Animals and timing
We'll plan work around your animals. Spraying near horses or livestock needs care, and some areas are better rolled. Tell us about your animals when you call.
Leaky barn or shop? Call (505) 588-5928.
Common questions
Can you coat a rusty roof?
Surface rust can be treated and coated. Holes and rust-through need panel repair first.
What about standing-seam roofs?
Concealed-fastener roofs rarely need a full coating. Spot repairs are often enough.
Will the coating help with condensation?
It may help a little by keeping the panels cooler, but condensation is mostly a ventilation and insulation issue.