- Shading Specialists will always aim to supply the best possible fabric appearance. In most situations, the fabric will look better than the images in this document, but they can also appear worse if not installed correctly.
- An opaque fabric tends to look worse than a screen fabric due to light reflection instead of light penetration. This can also be the case with different colours of the same fabric.
- Fabrics with a zipped-edge will always show some waviness or wrinkles. A 100% flat fabric, especially onlarge systems, is not likely to be achieved.
- Horizontal systems can show sag in the fabric. The amount of sag seen will depend on the blind size, fabric type and weight etc.
This document has been designed to visually demonstrate some of the above points, and suggests some ways of reducing the risks of them appearing.
Our manufacturers only use best quality cloths which have been proven to work effectively with the blind systems and provide effective and durable shading in the most demanding of applications. There are obviously some limits to what you can achieve with fabric.
POSSIBLE WAVY EDGES AND LINES THROUGH THE CLOTH
With Zip Blinds, the zip is an extra thickness of material securely welded to the edge of the fabric, that when rolled can cause tension between the fabric of the blind and the zip.
With two thicknesses of material at the edge and only a single thickness of material across the rest of the roll, tensions are found at the edge where the roll is tight and if too light or stretchy a fabric is used. This may be seen as creasing or lines across the main body of the fabric.
This can be reduced by designing the roller barrel so the single layer of cloth is more equal to the diameter of the cloth and the zip attached. Certain cloths perform better than others and it is possible to minimise this effect, however we cannot guarantee that this effect will not be seen.
The possible appearance of wavy edges or lines through the cloth does not affect the function of the blind, in any way, and as such is not covered by warranty.
ZIPPED EDGE FABRIC
On any fabric with a zipped-edge, some waviness at the sides of the fabric is to be expected.
This is due to the zip welded onto the fabric edge.
POSSIBLE SAG WITH ROOFLIGHT BLINDS
There are two main ways to produce roof blinds or those not fitted in the vertical plane.
1. Spring Tension System
Here the cloth is pulled across the opening by spring tension in one direction and a motor or other means in the other direction. The cloth is supported by the zip from the side channels and the system runs at low tension because there is insufficient power in the spring/motor combination to achieve anything greater. Consequently with the weight of the cloth and gravity there will be a degree of sag in the cloth. This will be more noticeable with larger blinds and with blinds fitted at low level.
2. FTS (Fabric Tensioning System)
This is a sophisticated roof blind system with a motor at either end of the blind. When the blind is stopped in any position the motors turn in opposite directions to tension the cloth. With fine adjustment via an electronic control box this can pull the fabric flat, virtually eliminating any sag.
The possible appearance of sag does not affect the function of the blind in any way and as such is not covered by warranty.
FABRIC APPEARANCE
POSSIBLE SAG WITH ROOFLIGHT BLINDS
There are two main ways to produce roof blinds or those not fitted in the vertical plane.
1. Spring Tension System
Here the cloth is pulled across the opening by spring tension in one direction and a motor or other means in theother direction. The cloth is supported by the zip from the side channels and the system runs at low tension because there is insufficient power in the spring/motor combination to achieve anything greater. Consequently with the weight of the cloth and gravity there will be a degree of sag in the cloth. This will be more noticeable with larger blinds and with blinds fitted at low level.
2. FTS (Fabric Tensioning System)
This is a sophisticated roof blind system with a motor at either end of the blind. When the blind is stopped in any position the motors turn in opposite directions to tension the cloth. With fine adjustment via an electronic control box this can pull the fabric flat, virtually eliminating any sag.
The possible appearance of sag does not affect the function of the blind in any way and as such is not covered by warranty.
ZIP WELD
The edges of the fabric are held in the side channels by a zip. The zip is heat welded to the fabric for a strong bond, however when different materials are bonded together there is usually some visible rippling near the bond.
HEMBAR
Due to the nature of the zip tensioning system, the bottom bar may not always be completely parallel to the headbox when fully retracted.
The use of L angle shelving profile will help to conceal this.