Just How Neat Are Our Obtuse Blinds?

Modern conservatories often have complex roof designs resulting in an obtuse triangle, where the angle exceeds 90°. Roof blinds normally need to be made so that the base rail and moving rail are perfectly parallel, which results in a fixed triangular infill and an extra rail across the glass.

Our uniquely designed obtuse blinds can avoid the need for any infills and, with the right fabric selection, can retract almost as flat as standard blinds in many conservatories. Plus, because our shaped roof blinds can be made to the narrowest top apex width, they cover much more of the glass when extended.

But what about when the blinds are retracted?
The steeper the obtuse angle, the longer the blind and the stiffer the fabric, the more difficult it is for an obtuse blind to appear unobtrusive because the resultant fabric stack increases when the blind is retracted. Solar Design™ fabrics less than 2m long at an angle less than 110° retract very neatly indeed.

Is it possible to explain exactly how they will look when retracted?
No. All blinds are bespoke-manufactured to suit the conservatory in which they are being installed and so there are no fixed specifications that we can quote, but here are some guidelines:
 

• Less than 2m and 105° only have a slight taper
• Over 105° the stack is more pronounced
• Over 2m long the stack is more pronounced

Because there are so many variables that affect the resultant stack depth of a shaped blind, especially an obtuse triangle, it is not possible to predict the stack depth with any accuracy.

Factors affecting appearance of an obtuse blind:
Drop: the longer the blind, the thicker the stack
Fabric: the thicker the fabric, the thicker the stack
Angle: the greater the angle, the thicker the stack

Only manual pure™ Pleated Blinds avoid the need for a fixed infill. Infills for motorised blinds are required when the angle is sufficient to cause drag on the operating cords of the blind and where there is enough of an angle to introduce an 11mm thick common joining rail (to which we fit fabric infill).

This varies with blind width x drop, as well as being subject to the exact angle, so there is no way to accurately predict when this occurs. As a very rough guide we would expect a fixed infill to be required on a motorised blind over 2m long and exceeds 93°.

Nevertheless, the fact remains that our obtuse blinds are far neater and much, much less obtrusive than any other pleated blinds sold in the UK.

Related News Tags:  Pleated Roof Blinds |  Shaped Blinds |