Which is better for a large roof?

The DMI panel. At 20 sq ft each and 10 ft long, it covers more area with fewer overlaps than the roughly 13 sq ft SUNTUF panel.

SUNTUF is $27.98 at Lowe's as of November 8, 2026. No price was given for the DMI panel, so check its price per square foot before deciding.

Which blocks more UV?

SUNTUF states 99.9% UV blockage from a co-extruded UV layer. DMI does not state a UV figure.

DMI backs its panel with a 10-year limited warranty. SUNTUF states no warranty, though its UV layer is meant to slow yellowing.

Can I use them together?

Only if the profiles match. Both are corrugated, but check the rib spacing and overlap before mixing brands on one roof.

Which is easier to install alone?

SUNTUF. At 3.2 lb and 6 ft long, one person can carry and place it. The 10 ft DMI panel is heavier and awkward on a ladder.

DMI Corrugated Polycarbonate Panels vs SUNTUF Corrugated Polycarbonate Roof Panel

Buy the SUNTUF panel for small repairs, sheds and single-row projects where a 6 ft panel is enough. Buy the DMI panel for larger roofs and full-length runs, since each panel covers 20 sq ft versus about 13 sq ft for SUNTUF. On price, SUNTUF is $27.98 at Lowe's as of November 8, 2026; no price was given for the DMI panel, so compare it per square foot before you commit.

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