What materials are the screens manufactured from?
The bottom part of the screen is manufactured from a Ripstop PVC coated / polyester base weave industrial fabric. The material is additionally coated with an acrylic lacquer which provides for ease of cleaning & additional UV protection. The bottom section is approximately 500mm in height & is provided to prevent predominant ground based dust into the enclosed area. The top section of the screen is manufactured from a specially woven PVC coated polyester mesh. The mesh provides ventilation & external viewing while preventing wind at 85% effectiveness.
What are the optical properties of the mesh?
Under standard natural lighting conditions the black mesh provides for internal to external viewing at approximately 80% effectiveness. Depending on the backlighting conditions of the factory external to internal viewing is quite limited providing up to 90% visual block out for very effective factory privacy.
What are the shade properties of the mesh?
The Vistaweave mesh provides shade up to 50% without filtering out the light.
What are the colours available?
Extendador screens are only available in black.
How long will they last and is there a warranty?
The mesh is designed for outdoor application and comes with the reassurance of a 5 Year Manufacturers Warranty. Screen components are unconditionally warranted for a period of 2 Years. Dependant on degree of usage and direct exposure to elements screen screens can be expected to provide a service for 8 – 15+ years with screen hardware components in excess of this time.
What are the maximum wind speeds that screens should be operated in?
The screens shouldn’t be operated in high gusting winds over 25 knots. The bottom retaining pole is also designed to safely self release in high wind conditions but shouldn’t be relied on as a basis for determining wind speeds.
Are the screens sealed at the sides?
No, not in its standard configuration. In its standard configuration Extendador screens have a small side gap to each side of the screen due to the mounting bracket assemblies which are attached to the roller door. The horizontal side gaps are approximately 30mm each. Optional external vertical pelmets are available for special applications where additional sealing protection is sought.
What happens if the roller door is accidently raised beyond the maximum screen working height while the screen is engaged?
The Extendador screen should never be engaged while operating the roller door. If this inadvertantly occurs and the roller door is raised above the maximum working height with the bottom retaining bar engaged, the screen will unfurl from the top spindle by virtue of the hook and loop release connection method (Velcro). This action will result in the top spindle spinning out its pretention load and will be required to be reset. Owners in this case should contact their Extendador representative to arrange a service call for this work.
Where is the screen usually mounted on a standard slatted roller door?
The screen top spindle brackets are usually best mounted to straddle over the 1st and 2nd roller door slats. This arrangement allows for existing or potentially new side roller door security latches to be easily accessed and operated below the retracted Extendador Screen.
Does the screen restrict the standard operation of a roller door?
In 99% of cases fitting an Extendador Screen to a roller door does not adversely impact the standard operation of the roller door. i.e. The roller door can be used with the screen mounted and used in it’s standard operating method. In some cases however it has been noted that the roller door retracts to a very high position close to the roller door top spool. In these particular cases it is important to ensure that the screen mounting brackets do not foul with the roller door retracted spool or flanged side guides. In electric roller doors this can be easily overcome by resetting the limit switch within the roller door control box to a lower height. In manually operated chain driven roller door systems a welded side guide lug is often the means as a roller door stop mechanism. In most arrangements this lug will contact the top of Extendador brackets which will reduce the effective roller door maximum opening height by approximately 200mm. If the case allows the stop lugs can be repositioned higher to achieve the same opening height should this be required for particular entry of high vehicles needing maximum height clearance.
Why are screens set to a standard of 2.10m nominal height?
Extendador Screens are set to an approximately 2.10m standard maximum operating height as it is generally just reachable by an average height operator from ground level. In addition it is a height that most commercial vans can enter the door without the requirement for roller door height adjustment. The system can be extended in height for factories that have semi- frequent fork lift entry without the need for roller door adjustment by the inclusion of bracket adjusters to allow for the larger resultant screen spool diameter and a 25mm webbing drop lanyard [viz handle] attached to the bottom retraining pole which provides a method for bottom pole retrieval when beyond standard reach.
How is the Extendador cleaned?
Extendador Screens can be cleaned by hosing down with clean water or for stubborn stains a mild detergent can be used.
Operating Extendador