- #Softplan 2016 elevation shows no window grills crack#
- #Softplan 2016 elevation shows no window grills windows#
Industrial Projected and Pivoted Windows Only. Applied weathering members shall be hot or cold rolled low carbon steel, nominally 0.060" thick. Sections shall be nominally 1/8" in thickness. Muntin bars to be continuous from head to sill and jamb to jamb. These members shall be nominally 1-3/8" in depth, except that members nominally 1-1/4" in depth may be used provided frame and ventilator corners are welded. Principal members shall be hot rolled new billet steel. Bottom perimeter frame member for projected and side-hinged ventilators shall have weep holes or notches leading to the exterior. The manufacturer will provide a drip member above all open-out, side-hinged ventilators. To meet special conditions, outside frame members may have equal legs, or equal legs with attached continuous fins.į. Outside frame members shall be of unequal leg design, to lap masonry by not less than 1/2". Muntin bars shall be coped, tenoned and riveted, or solidly welded to their outer frames.Į.
Muntin bars, except where interrupted by ventilators, shall be interlocked and continuous from head to sill and jamb to jamb except that bars in one direction may be discontinuous if they are securely welded at the intersection.
#Softplan 2016 elevation shows no window grills crack#
per minute per lineal foot of crack length when subjected to a pressure differential across the window of 1.56 pounds per square foot equivalent to a wind velocity of 25 miles per hour.ĭ. The foregoing limits air infiltration to a maximum of 1 cu. In projected ventilators it shall be impossible to freely insert (without forcing) a steel feeler gauge 2" wide by 0.031" thick between more than 40% of such contacts.Ĭ.
In side-hung ventilators it shall be impossible to freely insert (without forcing) a steel feeler gauge 2" wide by 0.020" thick between the inside contact of more than 40% of such contacts.ī. The metal to metal contacts between non-weatherstripped ventilators and frames shall, when ventilators are closed and locked before leaving the factory, be as follows:Ī. with a pressure differential across the window at 2.86 PSF.ġ. Window frame and ventilator sections shall be solid, one-piece sections with welded and dressed corners.ī.ğlanges forming the weathering contacts shall be rolled integral with sections to provide close contact with both inside and outside points of closure.ġ.Ěll operable windows shall be provided with weatherstripping, such that when tested in the closed and locked position in accordance with ASTM E-283 before leaving the factory, the air infiltration shall not exceed 0.37 cubic foot per minute per foot of crack length when subjected to a pressure differential across the window of 6.24 pounds per square foot equivalent to a wind velocity of 50 miles per hour.Ģ.Ěll operable windows shall be provided with weatherstripping, such that when tested in the closed and locked position in accordance with ASTM E331, no water penetrates for 15 minutes when a window is subjected to a rate of flow of 5 gal/hr./sq. The categories are: Light Intermediate - 2.0 Standard Intermediate - 3.0 Heavy Intermediate - 3.5 Heavy Custom - 4.2.Ī. There are four types of hot rolled steel windows, defined and categorized by the weight per lineal foot of the combined frame and vent members. These windows are made from solid steel sections which have been hot rolled from new billet steel into carefully designed profiles or shapes to form frame assemblies and ventilator assemblies.
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