 The Butlerib ® II
roof system is the basic roof system for the Widespan ™ structural system. Engineered
to be both economical to install and to maintain, the Butlerib II roof offers features
that make it the best through-fastened roof system in the industry.
The Butlerib II
system’s panels are factory cut and punched to ensure accurate endlap alignment and
easy installation. Factory-slotted holes allow roof panels to expand and contract during
seasonal temperature changes, reducing roof fatigue. Corrugations standing 1 1/2'' high
provide extreme durability while offering an attractive appearance
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