Super-insulating built-on roller shutter

The OB910 built-on roller shutter has the best insulation values on the market. This super-insulating roller shutter keeps the cold out and makes your indoor space even cosier. This built-on roller shutter adapts perfectly to your home, both indoors and out.

Suitable for low-energy houses

Thanks to its super-insulating properties, the built-on roller shutter OB910 is perfectly suitable for low-energy houses, large renovations and new-builds.

Superior thermal insulation

The secret of this built-on roller shutter? The roller shutter box is insulated using an innovative approach and this offers superior thermal and acoustic insulation for your home.

Dimensions up to 8.5 m2

At up to 8.5 m², the OB910 built-on roller shutter will substantially improve home comfort levels. This gem offers superior insulation, has no visible box in your home and is easy to operate and maintain.

A colour to satisfy every desire

Tailor your roller shutter to match the exterior joinery. The box, guide rails and bottom lath are available as standard in all RAL colours and in a great range of textured paints. There is also a wide range of colours for our top-quality slats in PVC or aluminium.

Go 100% sustainable

Built-on roller shutters powered by solar energy

Harol’s OB600 Solar roller shutter operates on solar energy and offers excellent performance, even in less favourable weather. Thanks to the 2.2 Ah storage capacity, you can open and close the shutters with a charged battery for 30 days, even in complete darkness. With a solar-powered roller shutter, you will save twice on your energy bill.

This solution can be installed easily, without any demolition or electric work. OB600 Solar from Harol has RTS or IO control which can be connected to the IO home control system for home automation.

  • 100% green solar energy
  • Powerful 2.2 Ah battery
  • Shade and/or black-out up to 6 m2
  • The motor is fitted with obstacle and frost detection
  • 7 year guarantee on motor, battery and solar panel

Replacing your windows? Why not choose built-on roller shutters!

If you replace your windows, it is best to choose built-on roller shutters too. Combined assembly during production ensures full water, air and wind proofing. Perfectly integrated with the window or door, they provide the best insulation.

Maximum comfort at home in every season

  • Pleasant climate indoors in the summer
  • Insulating in the winter

Choose OB910 Silensio, the quietest roller shutter on the market!

The low-noise tubular motor is quieter than any other household appliance! With an almost inaudible ‘soft start & stop’ function, the sound of slats clattering together is eliminated.

  • Ultra-quiet roller shutter
  • 40% longer lifespan
  • Superior obstacle detection
  • ‘Soft start & stop’ function

Choose greater home comfort with built-on roller shutter OB910

With a U value of 0.50 W/m²K, the OB910 Thermo has the best insulation value on the market. Its acoustic performance is equally impressive. This roller shutter quietens the noise of a motorway to sound like rustling leaves.


Why choose Harol?

100% guaranteed quality

Our Belgian craftsmanship, accurate to the millimetre, is supported by over 75 years of experience, allowing us to continuously maintain the very highest quality standards.

Design awards

Numerous international awards recognise our persistent product development and constant drive for innovation, aiming to provide greater durability, comfort and well-being.

Customised solutions

Harol supplies 100% made-to-measure solutions, where every detail counts. Our roller shutters, solar shading solutions and pergolas with endless personalisation options can be perfectly matched to your wishes.

Full service from start to finish

Choose a reliable and transparent partner who offers professional advice, specialised installation and a robust 5-year quality guarantee to ensure your satisfaction.

Why natural cooling

Our mission statement, “We Believe in Natural Cooling,” lies at the heart of all our efforts. We consider smart solar shading to be the most natural and energy-efficient way to block heat. Compare it to a tree providing shade: just as you seek natural cooling under the branches of a tree, sun protection keeps the sun out and your home, patio and workplace pleasantly cool. It offers natural air conditioning for your home which is healthy but also environmentally-friendly.


  • Savings on your energy bill
  • Passive cooling in the summer
  • Insulation in the winter
More about natural cooling