What is the role of an H Clip in roofing?

An H Clip serves a specific and practical function in roofing by stiffening the joints of plywood sheets. When sheets of plywood are used as sheathing on roofs, the H Clip is inserted between the edges of the panels. This enhances structural integrity by preventing the panels from sagging in the spaces between supports, which can lead to potential issues such as water pooling or uneven surfaces.

The H Clip essentially creates a more stable and rigid roof deck, ensuring that the plywood maintains its shape and contributes effectively to the strength of the entire roofing system. This is particularly important in maintaining a flat, even surface that supports subsequent roofing materials and helps to ensure effective water drainage. Having this stiffening mechanism helps to prolong the lifespan of the roofing system and provides a solid foundation for the installation of shingles, tiles, or other roofing coverings.