Blind Screens: cutting glare without losing your view out

What openness factor actually means

Openness factor is simply the percentage of tiny gaps in the weave versus solid yarn, expressed as a number such as 3, 5 or 10 per cent. A lower openness factor blocks more light and gives more privacy but reduces the view out; a higher openness factor keeps more of the view and daylight but controls less glare.

There is no single correct number. A screen chosen for a west-facing home office monitor will usually sit lower than one chosen for a shopfront where staff still need to see the pavement clearly.

Why glare, not just brightness, is the problem

Glare is light hitting a screen or a shiny surface at the wrong angle, and simply dimming a room with a heavy blackout blind does not always fix it if the source is a low winter sun rather than general brightness. A woven screen fabric diffuses that direct light across the weave rather than blocking it outright, which is usually the more comfortable and workable result at a desk.

Home offices and south-facing rooms

A home office that faces south or west often becomes unusable on a screen for part of the afternoon without some form of glare control, and closing a solid blind simply moves the problem to needing a desk lamp instead. Blind Screens let the room stay bright and usable while the specific glare on the monitor is controlled.

Schools and offices

In classrooms and office floors, screen fabrics solve the same problem at scale: rows of desks or workstations facing a bank of windows all need consistent glare control without the room dropping into artificial light for most of the day. We work with schools and offices across East Kent on exactly this brief, alongside our residential fitting work.

Solar screen fabric and heat

Beyond glare, a technical screen fabric also reflects and absorbs a proportion of solar heat before it reaches the room, which reduces the afternoon temperature rise in a glazed office or conservatory-style extension without removing the view.

Weave colour and how it changes the view

A darker weave colour generally gives a clearer, less hazy view out during the day than a light or white weave of the same openness factor, because it absorbs more incidental light rather than reflecting it back at the viewer. This is why many office and home office specifications default to charcoal or grey screen fabrics rather than pale ones, even though pale fabrics can look brighter and more decorative from inside.

The reverse is also true from outside looking in: a darker weave reduces how much of the interior is visible from the street or garden during daylight, which matters for a ground floor home office or a shopfront that still wants some daytime privacy without a solid blind.

Choosing between a screen and a full blackout blind

Blind Screens are not intended to replace a blackout blind where you genuinely need a dark room, such as a bedroom or a home cinema space. They are the right answer specifically when the goal is glare and heat control while keeping usable daylight and a view, and the wrong answer if full light exclusion is actually what is needed. We will talk through which brief applies to your room at the visit rather than default to one product.

Fabric weight and how it hangs on a large screen run

On a wide office or shopfront run, screen fabric weight affects how flat the material hangs and how much a roller tube can support before a second support bracket or a wider tube diameter is needed. A lightweight screen fabric on a very wide single drop can start to bow slightly at the edges, which is why wider runs are sometimes split into two rollers rather than one, or specified with a heavier fabric and reinforced tube.

This is a fitting detail rather than a fabric fault, and it is exactly the sort of thing we account for when measuring a school or office installation rather than treating every window as an identical residential job.