Architectural Urethane™ Arches Installation Instructions

Arches come as a true half round with 3″ extensions that can be cut to adjust the arch to line up with the bottom of the window (except for 150-330 & 150-310 arches which do not have the extensions). Melton Classics arches can be installed using galvanized nails or screws and work well with nail guns. Please test to set depth of the nail before installing. Arches larger than than 48″ are provided in two halves that need to be joined in the center at the top of the window. We recommend using urethane adhesive in the joint to prevent separation.

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