PROJECTED WINDOWS
Projected-out ventilators shall have top rail sliding downward and the bottom rail swinging outward and upward. Projected-in ventilators shall have bottom rail sliding upward and the top rail swinging inward and downward.
| a. |
Each ventilator is balanced on two heavy
steel side arms attached securely to the ventilator and to the frame, and two non-ferrous friction shoes sliding in the channel of the jamb frame sections which shall hold the ventilator firmly in open positions. As an option, ventilators may be balanced on 4 bar steel hinge assemblies. Supporting arms and hinge assemblies shall be concealed when ventilator is closed. |
| b. |
Projected-in ventilators shall be provided with locking handles or spring catches. Projected-out ventilators shall be provided with locking handles or manufacturer's standard under-screen operator when specified. If the locking rail of ventilator is more than 6'6" above floor level, hardware designed for pole operation shall be furnish-ed. Ventilators exceeding 4'8" in width are supplied with two locking handles. |
| c. |
Locking handles, spring catches, and underscreen operator attachments shall be manufacturer's standard design. They shall be attached securely to the windows with brass or other corrosion-resisting screws. |
© The Steel Window Institute (2006) Contents are the property of the Steel Window Institute, its members or others who have licensed the information. All rights reserved.
|
|
|
