Single hung window shall be 7700 Series as manufactured by Lawson Industries, Inc., Medley, Florida USA and shall conform to A.N.S.I./A.A.M.A. standard 103.3-93, for DHC 47, A.A.M.A. 1302.5-76 for forced entry resistance, and F.B.C. TAS-201, TAS-202 and TAS-203.

All window members shall be of commercial quality 6063 aluminum to T5 and T6 temper. All frame members shall have a minimum dimension of 2 5/8”, cut and fabricated to form a tight butt or telescoped joint. All frame corners shall be joined by two #10 sheet metal screws. Horizontal meeting rails shall be of tubular construction, and attached to verticals with two sheet metal screws per joint. Vent rails shall also be of tubular design, and contain integrally extruded lift rails. Vent sill rail shall be fitted with weathering bulb vinyl to seal sill to intermediate riser of sill. Weathering sill shall also contain polypropolene pile with transparent vinyl fin. Each vent rail shall contain two 3” long spring loaded claw latches that engage with full-length lip to provide positive, secure latching.

Exposed aluminum shall be coated with an electro-statically applied organic finish meeting the performance requirements of A.A.M.A. 603.5 for pigmented coating. Coating shall have minimum of 1.0 mil dry film thickness in a white or bronze color.

Sash shall operate on block & tackle, springs and pulley balances, which are concealed from view during vent operation. Sash shall be removed from the interior for glass cleaning, when vent is in take-out position only.

When specified tubular aluminum exterior muntin and flat interior muntin shall be applied to glass in multitude of standard and custom configurations.

All half screens shall be of rolled aluminum tubular profile, and can be applied from the interior without using tools. Screens shall be held firmly in place by integrally extruded stops in sill, and meeting rail. Mesh fabric shall be 18” x 16” dark grey fiberglass. Mesh shall be resplindable with plastic material.

All frame and sash members shall accommodate annealed laminated glass in nominal thickness of 5/16”. Glass color shall be as specified. Optional heat-strengthened glass is available upon request. A variety of glazing compounds shall be used to structurally adhere glass in its pocket. A snap fitted aluminum glazing bead containing a compressible vinyl bulb shall be factory applied from the exterior to conceal, and protect the glazing pocket.

All frame and sash members shall accommodate annealed laminated glass in nominal thickness of 5/16”. Glass color shall be as specified. Optional heat-strengthened glass is available upon request. A variety of glazing compounds shall be used to structurally adhere glass in its pocket. A snap fitted aluminum glazing bead containing a compressible vinyl bulb shall be factory applied from the exterior to conceal, and protect the glazing pocket.