HOLLOW METAL GLAZED WINDOWS

• Hollow metal transoms, sidelights and windows are an
excellent choice at exterior locations. Proper
application of sealing methods commonly used with
other window systems will result in excellent
performance. In addition, hollow metal is a superior
solution for security, durability, thermal transfer, wind
load, and seismic performance.
• Hollow metal shall be Continuously Welded Frames. It
should be noted that a continuously welded assembly
alone does not ensure a watertight condition. Whenever
possible, it is strongly recommended that glazing
material be installed on the exterior rabbet of the frame
assembly, which will help act as a deterrent to water
penetration.
• The Hollow Metal manufacturer does not control the
installation of his product or application of perimeter
caulking, joint sealants, or glazing materials. This work
should be specified inthe Installation / Glass / Glazing /
Caulking section of the specifications.

 

1- WINDOW FRAME PROFILES:

A- DOUBLE RABBET:

A frame provided with two rabbets, where the Glazing can be installed on Exterior or Interior
Rabbet.
Recommended when large Frame Depth is required, as the double rabbets give more
toughness to the Window Structure.
Jamb/Wall Relation: Butted on the Wall.
Dim. Limitations:
Min. Frame Depth = 135mm
Max. Frame Depth = 500mm
Max. Face = 100mm
The 2 Rabbets can be unequal sizes within the above limitations.
Available Materials:
Colled Rolled / G60 / G90 (1mm, 1.2mm, 1.5mm, 2mm & 3mm)
Max. Window Panel Size: 1220mmX2440mm (WxH) or (HxW)
Multi-Panels Windows can be used for larger Window Areas.
Panels can be either manufactured each panel separated then to be joint with screws, or
combined as a unit divided by Mullions.

 

B- SINGLE RABBET:

A frame having only one rabbet. which gives smooth decoration with the wall. Recommended with
Small Frame Depth.
Glazing to be fixed om the rabbet whether it is External or Internal.
Jamb/Wall Relation: Butted on the Wall.
Dim. Limitations:
Min. Frame Depth = 85mm
Max. Frame Depth = 400mm
Min. Face = 35mm
Max. Face = 100mm
Available Materials:
Colled Rolled / G60 / G90 (1mm, 1.2mm, 1.5mm, 2mm & 3mm)
Max. Window Panel Size: 1220mmX2440mm (WxH) or (HxW)
Multi-Panels Windows can be used for larger Window Areas.
Panels can be either manufactured each panel separated then to be joint with screws, or
combined as a unit divided by Mullions.

 

 

2- GLASS INSTALLATION TYPES:

A- REMOVABLE STOP ON EXTERIOR SIDE (PREFERRED METHOD):

These are recommended guidelines for the prevention of air and water infiltration for exterior hollow metal. A primary source of
leakage is the interface of the wall and the hollow metal frame. The contractor must ensure proper flashing and sealant procedures
are followed as specified in the contract documents. The glazing installer must also follow proper caulking methods during installation
of glazing, panels, and/or operable window units. To ensure that glazing, panels, and/or operable window units are sealed properly,
these are to be installed in the field.

 

 

B- REMOVABLE STOP ON INTERIOR SIDE

Whenever possible, it is strongly recommended that the glazing material be installed on the exterior rabbet of the frame assembly,
which will act as a deterrent to water penetration. However when glazing on the interior side is required we recommend the
following steps be taken. Continuous cap bead around perimeter of glass on exterior side as shown in Figure 2A. At the same
time as the cap bead is applied, the soffit, stop and rabbet area at all joints shall be caulked. Caulking shall be a continuous
homogeneous bead from the cap bead tothe face of the frame as shown in Figure 2B.

 

 

3- WINDOW FRAMES CORNER CONSTRUCTION

Corners can be ONLY Fully Welded:
Fully Welded Corner: Frame parts to be welded together at factory, to be delivered as a unit.
KNOCKED DOWN: N/A

 

4- ANCHOR PREPERATION TYPES