Specifications include, but are not limited to: Poligon’s HXE-28TG and HXE-20TG serve as the “basis for design” for the “small” (HXE-20TG) and “large” (HXE-28TG) shelters being sought. Shelters shall have a 16” O.C. standing seam metal primary roof and a 2 x 6 tongue-and-groove secondary roof. All shelter designs must allow access for the installation of wiring / standard outlet in at least one post. Hidden fastener roofing is preferred – hip cap/roof cap portions exempted. Exposed fastener metal roofing as commonly installed will not be accepted. The shelters shall be manufactured with columns that include blind hardware for mounting to footings. The shelters shall have a minimum 10-year warranty, and shall have a Kynar 500 painted, metal roof. Metal roofs shall be design to allow water to freely drain and not be captured. The shelters shall be manufactured and designed for a typical footing at least 4’ deep.