Standing T-rib roof system

摘要

The side-by-side panels of a standing T-rib roof can be provided in any necessary lengths due to a smooth telescopically interfitting arrangement lengthwise between adjacent panel sections. One end portion of each panel section is tapered without cutting or crimping the metal thereof and when slipped endwise into the untapered end portion of another panel section forms a smooth slip joint of uniform cross sectional dimensions in relation to the complete assembled panel. An improved clip for attaching roof panels to underlying purlins features a vertical standoff space between the clip attaching feet and lateral panel support branches thereabove so that a thermal insulation blanket can be placed in the stand-off space. This vertical stand-off space greatly decreases the thermal conductivity of the metal roof and, therefore, increases the thermal value.