frames as hereinafter specified, be glazed with plastic glass. 8-12. WINDOW SCREENS: shall where so noted, Window screens shall conform to Specification No. HN-2H-105 as contained in Appendix A of these specifications. Screens shall be furnished complete with hardware including hangers and button fasteners, as well as the required rubber closure plugs. screens shall be installed insect-proof with all hardware in proper working order. In general, screens shall be installed at hospital infirmary and mess hall buildings and at certain other buildings as directed; the exact location of screens shall be as determined by the Engineer. 8-13. PLASTIC COVERED SCREENS: Where so noted, screen frames shall be glazed with a flexible, translucent, wire reinforced fabric equal to Dupont "Cel-0-Glass”. Fabric shall be attached to screen frames by means of splines driven into grooves in the screen members in & manner similar to that specified for the attachment of plastic mesh screening. 8-14. FLOORING: Finish flooring, not otherwise noted, shall be as specified in paragraph 8-02c, of dimensions shown, laid with close joints, tightly driven up, and 8-15. CORRUGATED ALUMINUM: Contractor shall furnish blind nailed with aluminum nails into each floor joist. Joints over the same bearing shall be alternated, so that there will be at least two boards between them. and install corrugated aluminum roofing and siding over wood framed structures where called for on the drawings. a. Materials unless otherwise shown, as follows: shall be 1. Corrugated Aluminum Sheet shall be industrial type .032 inch thick weighing not less than -56 pounds per square foot and shall be 3S aluminum alloy or equal, corrosion-resistant alloy approved by the Engineer. Corrugations shall rave a pitch of 2.67 inches and a depth of 7/8 inches. Ridge caps and other special shapes shall be provided where required and aluminum flashings .020 inches thick minimum shall be installed where shown or as required to provide a weather-tight installation. 2. Fastenings, including nails, 8-12 screws,