The strongest, highest-rated roof system in the industry. Our roof systems meet the industry’s highest load ratings for wind and snow, for non-structured roofs—and we have the documented engineering data to prove it.

The MP+ Roof System offers strength and protection that are the best in the business.  You get maximum grain protection, superior strength and reliability that are simply unmatched by any other non-structured roof. Why pay more for a structured roof when you can get a high-performance, industry-leading roof system for less?

• Large pre-formed manway roof opening is standard, featuring a hinged lid and big 5.5 sq. ft. (0.51 m2) opening for easy access. Easy-open lid with big beefy hinges lays flat to avoid wind. A seamless extruded collar (inset) with rubber gasket provides moisture-tight seal when closed. Pre-formed opening makes for simpler construction and tight fit.
• Specially designed 12-gauge eave clipsconnect roof sheets to sidewalls. “Up” position helps exhaust moisture-laden air. “Down” position preferred for long-term storage. Built-in rib stops keep out pesky birds. Continuous eave ring is used in lieu of clips on 54′ (16.46 m) and 60′ (18.28 m) models and are optional on smaller diameters.
• Extra-tall 3-3/4″ (9.5 cm) stair-stepped ribs are staggered to provide even greater strength. Hemmed drip edge deflects moisture, eliminates sharp edges to reduce injury and strengthens the cross-section of the roof sheet.
• Large 36″ (91.4 cm) peak opening provides easy filling and optimal access. A roof ladder from the eave to the peak—plus a roof safety ring—are standard on all models. Easy-open removable cap is standard. Heavy-duty cap for spouting is optional.
• Oversized bridging ring enhances structural integrity. Splice clamps (inset) and expansion bolts ensure ring segments function as one continuous pipe.
• Well-designed 2.25 sq. ft. (0.686 m2) roof vents for maximum airflow. Vent openings are pre-punched for easy construction and tight fit and seals. Vents feature seamless raised lip (inset) for improved integrity and moisture resistance.
• Peak flashing is formed to the ribs to improve resistance to moisture and birds.
• Safety ring is a continuous round pipe for safer, easier access to and around the roof cap.
• Extra-large manway is sized for plenty of shoulder-room and easy maneuverability, even for large-framed farmers wearing cold-weather gear!