TPO vs. Metal Roof-Over for Mobile Homes

When your mobile home roof is past patching, a roof-over is usually the smart move - no tear-off, lower cost, and 20+ years of new life. The next question is which system: a TPO membrane or metal. Both are good. Here's how they actually differ.

TPO Membrane Roof-Over

A TPO roof-over installs rigid insulation board and a single-ply membrane that's heat-welded into one seamless surface.

Strengths:

• Built for the low and flat slopes most mobile homes have
• The insulation board adds real R-value and lowers cooling bills
• A fully welded surface has no field seams to fail - the #1 leak point on mobile homes
• Reflective white surface bounces Florida heat

Best for: low-slope roofs, owners who want maximum energy savings, and anyone tired of chasing seam leaks.

Metal Roof-Over

A metal roof-over installs new framing and metal panels over the existing roof, often creating a pitched look.

Strengths:

• Extremely durable and long-lasting
• The framed air gap adds insulation and cuts rain noise
• Can transform a flat roof into an attractive pitched roofline that looks more like a site-built home

Best for: owners who want the pitched look, maximum longevity, and don't mind a slightly different installation approach.

Head-to-Head

• Slope: TPO wins on flat and low-slope roofs; metal shines when a pitch is added.
• Insulation/energy: Both improve it; TPO's rigid board and metal's air gap each help, and TPO's reflective surface is a strong performer in Florida heat.
• Leaks: TPO's seamless welded surface removes seam risk entirely; quality metal is also very reliable when installed correctly.
• Cost: Often comparable - your home's size, slope, and additions matter more than the material choice.
• Look: Metal can create a pitched, site-built appearance; TPO is a clean, low-profile flat surface.

So Which Should You Choose?

For a low-slope mobile home where energy savings and ending seam leaks are the priorities, TPO is often the best fit. If you want the durability and pitched look of metal, a metal roof-over is an excellent choice. The right answer depends on your roof - and that's exactly what a free mobile home roof inspection tells us.

Want a straight recommendation for your home? Read our roof-over cost guide, then have our roof-over team assess your roof and tell you honestly which system makes sense.