Patent attributes
A reinforced notched sub-purlin is formed by a top flange, one or more vertical webs, one or more base flanges, one or more notches, and at least one reinforcement. The top flange extends the entire length of the reinforced notched sub-purlin. The vertical web(s) extend from the top flange, and the one or more notches are formed by removing a portion of the vertical web (where only one vertical web is used) or by separating adjacent vertical webs (where a plurality of vertical webs are used). A base flange extends from the vertical web(s) in a direction opposite the direction in which the top flange extends from the vertical web. The at least one reinforcement is provided on the vertical web(s) and provides enhanced stiffness, thus improving ability of the reinforced notched sub-purlin (and a roof or wall panel installed thereon) to resist forces resulting from, for example, wind and snow.
