Roller blinds are different from other types of blinds in that the blind is attached to a roller mechanism. The roller mechanism allows for the blind to be pulled down when needed and rolled away when not. This ability to have the blinds available only when needed is the one feature of the roller blind that makes it quite convenient.
How the roller blind works
To understand how the roller blind works, one has to understand the working of the roller mechanism to which the blind is attached. The roller mechanism can either make use of a chain operated pulley system or a spring mechanism to roll and unroll the fabric making up the blind. Fully automated remote controlled blinds are also available that even offer greater convenience.
Why use roller blinds?
The roller blind has a number of advantages over ordinary blinds. These benefits are:-
• The entire dimensions of the window on which the blinds are installed are fully exposed when the blinds are open. This is because the blind retracts completely into the roller mechanism. None of the other blinds can achieve this be it shutter blinds, venetian blinds, roman shades or ordinary curtains.
• Designs or elaborate designs can be made of the wooden boards making up the window sill if roller blinds are to be used. This can be quite useful where the designs or finishing on the window sill helps to compliment the interior of a room.
• The fabric used as the blinds can be made to look like the walls surrounding the window. This means that when the roller blinds are closed, they allow the windows to integrate seamlessly with the wall. This can be a feature that can be used to accentuate the interior design of a room when the blinds are either fully or partly closed.
• Roller blinds are better in providing uniform light filtration when full. Furthermore, by varying the thickness of the fabric making the blind, different levels of light filtration can be obtained.
The main downside to roller blinds is that the blind is not able to keep out drafts while the windows are open. Furthermore, it is not possible to use netting with the roller blind due to the lack of space between the blind and the window. However, the use of double roller blinds effectively deals with this problem. In this scenario the roller blind nearest the window would have be of a light net as the blind thereby acting as a shield against drafts as well as a light filter.
Features of roller blinds
Roller blinds offer several features, some of which are similar to the other types of blinds while others are distinct to this type alone. These features are:-
1. Ease of operation
• Roller blinds have three possible modes of operation which translates to three models of roller blinds. These three models are.
2. Manual chain operated roller blinds
• Chain operated roller blinds are the most common of model of the three available. This model makes use of a stainless steel chain to lower and lift the blind. The chains has evenly spaced nodes which it give the chain adequate grasp while manually lowering or raising the blind. The chain is in the form of a loop whose length is equal to the length of the blind. Pulling one side of the loop downwards lowers the blind while pulling the other loop in a similar manner raises the blind.
3. Semi-automatic spring operated roller blinds
• The semi-manual spring operated roller blind is the second most popular blind. This roller blind makes use of a spring inside the roller mechanism to automatically roll up the blind thereby pulling the blind upwards. This in effect opens the blind. This mechanism is very similar to the mechanism used in the carpenter’s metallic tape. In order to close the blind, the bottom of the blind has to be manually pulled downwards. This is done out with the aid of a short string or chain attached to the bottom of the blind.
4. Automatic motor operated roller blinds
• The automated roller blind is the more recent of the roller blind models. This blind makes use of an electric motor, within the roller mechanism, to automatically lower and raise the blind. This is usually done with the aid of a bi-directional switch. Advanced models of the automated roller blind make use of a remote to lower and raise the blind. This is achieved through the use of a control unit that interprets the signal from the remote and then relays the necessary direction to a stepper motor within the roller mechanism.
5. Wide range of possible fabrics for the blind
• As with the other types of blinds, the number of possible fabrics that can be used as the blind are limitless. The fabric chosen depends on a number of factors such as the room in which the blind is installed, the expected duration of exposure of the blind to sunlight, the intended level of light filtration and so forth. This wide range of fabrics offers a wide range of roller blind fabric patterns and colors.
6. Long service life
• All three models of the roller blind all offer considerable service life before finally requiring repair and/or replacement. The manual chain operated roller blind offers the longest service life. The semi-automatic spring operated roller blind offers the second longest service while the automatic roller blind has the least service life of the three. Both the manual chain and the semi-automatic roller blind require minimal care and maintenance. The automatic roller blind requires a considerable level of care and technical expertise to repair. However, the universal design of roller blind parts makes replacement easy and affordable for all three roller blind models.
7. Ease of assembly and installation
• All three roller models are easy to install and anyone can do so with minimal technical skills. All three blinds come complete with detailed installation instructions, trouble shooting and maintenance printed material. Roller blind are definitely an ideal and stylish option for window blinds. The blinds will cater to the needs of any client be it for residential, commercial or industrial applications.