Aluminium Extruded Guide and Bottom Bar
This guide is supplied with all our Domestic and Security roller shutters.
The guide is the section that the slat profile actually runs up and down in, and supports the shutter head box. The guide and bottom bar sections of the roller shutter are extruded aluminium and coated with a unique finish to the shutter industry. This coating has been computer matched to the colour of the head box, and will be slightly different to the slat profile due to paint types.
The guide profile is approximately 53mm x 23mm and is designed with a hollow section on the outer side. This hollow allows for multiple fixing points as well as supporting the head box end plate.
The bottom bar is the section along the bottom of the shutter curtain (slats) which has the primary function of straightening the curtain.
This bottom bar is used with the Domestic, Security and Cyclone range of shutters.
The bottom bar section has a cover size of approximately 51 mm and is 7.5mm wide. This is a multi hollow extrusion that adds strength to the profile, while allowing the fixing of concealed bottom bar stoppers.
The extended guide can be supplied with the Domestic and Security range.
Please be advised that we now have available our Extended Guide to provide a more secure fixing.
Our standard guide is 53mm x 23mm and has a 25mm channel section
(this is the section that provided the track that the curtain moves up and down).
The extended guide is 69mm x 23mm and whilst the hollow cavity that supports the leg and provides an area
for the fastening points remains the same, the channel section is increased from 25mm to 41mm.
This feature increases the overlap of the curtain into the guide therefore offering more stability in the case of abnormal forces being applied.
Please note: that this added width must be taken into account when measuring your window or doorway, especially in the case of “On Wall” installation method, you would need to add 138mm to the opening size of the door or window with “On Wall” an installation.
The guide has a heavy-duty section that has been specifically designed for this shutter. The guide measures 69mm x 25mm x 3mm, As you can see in this image the slat insert is restrained into the guide profile. This restraining design considerably increases the force needed to disengage the slat from the guide. The slat may deflect slightly, as is common, however once it reaches a certain point the inserts will act on two flanges shown in the guide and this will reduce the deflection.
To comply with the Cyclone rating, the curtain of the shutter must closed down into a guide, to prevent wind getting behind the curtain, we supply the extended guide (above) for this, which is also 69mm.
The guide profile is approximately 76mm x 28mm and is designed with a hollow section on the outer side. This hollow allows for multiple fixing points as well as supporting the head box end plate.
This bottom bar section is used with our Commercial range, it has a cover size of approximately 56.4mm and is 10.3mm wide. This is a multi hollow extrusion which is fitted to the bottom of the curtain to add strength to the profile, while allowing the fixing of concealed bottom bar stoppers..