What are the operational considerations for roller blinds?

Roller blinds are the most commonly specified type of window blind for commercial, education, and hospitality projects, thanks to the wide range of systems available and the extensive choice of fabrics.

But what are the different types, and how do they compare? We explain the key options below.

What are the main types of roller blind?

The five most widely used roller blind systems are:

• Spring-operated
• Chain-operated
• Geared crank rod
• Motorised
• Automated

This guide outlines the pros and cons of each, helping you choose with confidence the most suitable system for your next project.

Automated roller blinds

Automated roller blinds are the most advanced option available, enabling architects to create highly efficient solar shading strategies.

When paired with metallised fabrics and integrated with a BMS using sun-tracking sensors, automated blinds adjust throughout the day to optimise control over glare and solar heat gain. This reduces reliance on HVAC systems for cooling and improves comfort and wellbeing for occupants.

Our industry-first automated solution, S3 Synchronised Solar Shading, allows architects to both specify and retrofit automated blinds using open protocols. In addition to long-term energy savings, S3 requires less wiring than traditional motorised systems, making installation and maintenance faster and more cost-effective.

Motorised roller blind systems

Motorised roller blinds are increasingly popular in commercial interiors where full automation isn’t required but convenience and control are important.

They typically require a 13amp fused spur within 1 metre of the installation point, with hard-wired motors also needing cables routed to a wall-mounted switch. Radio-controlled motors offer flexible control via handheld or wall-mounted remotes, though some manual input is still required.

We work closely with leading brands in the electric roller blind market, including Lutron, who we recently partnered with on the One Nine Elms development in London (full case study coming soon).

Silent Gliss is another popular choice with a wide range of roller blind systems. Our own ShadeTech and Draper systems are particularly well suited to commercial office environments.

Spring-operated roller blinds

Spring-operated roller blinds use a tensioned clutch mechanism to hold the fabric in place. The blind is lowered by pulling a centrally fixed cord or grip on the bottom bar, and retracted with a gentle tug.

This system is considered ‘safe by design’ under BSEN13120 child safety legislation. However, it is generally limited to blinds no wider than 1m and no taller than 2m. Over time, the springs can lose tension, making them less suitable for busy commercial or educational environments.

Chain-operated roller blinds

Chain-operated roller blinds are arguably the most commonly specified system across commercial projects.

They typically feature a stainless steel chain, which is both robust and well-weighted. For larger blinds, an internal booster spring within the headbox can improve the operation and reduce strain on the user.

It’s important to ensure the chain includes safety stops — small metal crimps that prevent overwinding — and all chain-operated blinds must comply with BSEN13120 where children under 42 months may be present.

Geared crank rod roller blinds

Geared crank rod roller blinds are particularly popular in schools and public buildings due to their strength and tamper-resistant design, making them a favourite with facilities managers.

A key advantage is that the crank handle can be removable, so only authorised personnel (e.g. teachers or staff) can operate the blinds — reducing the risk of misuse or damage.

Like spring systems, geared crank rod blinds are considered ‘safe by design’ under BSEN13120. However, they can become difficult to operate manually when installed at heights above 4 metres. In these cases, a motorised system is typically the better choice.

If you’d like to discuss which roller blind system is best suited for your project, please contact us — our expert team will be happy to help.