Book an appointment

Call: 01256 345580


Apollo Electric Roof Lantern Blinds


The Apollo Medium Battery Operated Roof Lantern Blind

Book A Callback With Your Electric Roof Lantern Blind Specialist


Engineering Brilliance

An Extraordinary Blind
For Extraordinary Spaces.

Technical Fabrics

High-quality fabrics specifically
designed to perform under tension.

Ultimate Control

Reliable SOMFY motors respond to touch,
voice and light. Home automation compatible.

Expert Advice

Watch our many customer testimonials
to see how our advice will assist you.

5-Year 'Peace of Mind' Warranty

Designed to protect your investment.
Caring Beyond The Installation

Apollo System Sizing Specifications

WindowTreat’s electric roof blinds have been engineered with no visible cords. The roof blind systems have manufacturing physical limitations on how wide or long they can be. WindowTreat’s focus is ensuring that your chosen fabric will be aesthetically suitable for your home so sometimes the recommendation will be to use a more powerful roof blind. Heavier fabrics require more applied tension with stronger hem bars to get the desired finish. The diagrams below demonstrate the physical limitations and recommended sizes for the given roof blind. Our roof blind specialists are at hand to assist you further so book in an appointment today.

Apollo Scale
8kg of applied tension

Engineering Brilliance


The Apollo Electric Roof Lantern Blind is engineered so the fabric looks great without visible cords on larger sized roof lanterns

Watch the Apollo in action

Watch this short video of the Apollo electric roof lantern blind in action!


Apollo Cassette Boxes

The Apollo is our only battery-powered system. Within its limitation of 2m wide and less than 2.5m long it will give a good cloth finish without any visible cords. It boasts a symmetrical look with easy to clean cassette boxes at both ends. Inside the cassette boxes, the engineering brilliance of the Apollo Electric Roof lantern blind is hidden away from dust, flies and view allowing it to blend into your lantern’s upstand. (White is standard but any RAL colour can be offered).

At one end of your Apollo roof blind is an 85mm² cassette headbox depending on the length of your upstand. Unlike pleated blind systems that concertina at one end gathering dust, your chosen Apollo fabric is always protected when not in use. At the other end of your blind is the symmetrical tension box. This contains two tension springs that provide the power to keep your chosen fabric taut via hidden white nylon cords. These constant tension springs average a combined tension of 8kg, however, these springs lose power as the fabric is deployed from a combined 10.4kg to 6.4kg.

Apollo Hem Bar

Apollo Side Channels & Shelving

The Apollo electric roof lantern blind has slimline side channels 28mm wide supported by the 50mm shelving. They play an integral part in the ‘no visible wires’ Apollo electric roof lantern blind system. The 1.5mm nylon cords used to withstand the power of the 4kg tension springs are hidden inside both side channels. The zipper ribbon technology is welded to the edges of your chosen blind fabric creating a very strong join. The zipper ribbon is securely held and prevented from being pulled out of the channels. It allows the blind to run freely and quietly along these channels whilst returning the fabric squarely onto the motor tube every time it is used.

The shelving is a critical part of the Apollo roof blind system. The powder-coated L-angle profiles allow the electric roof lantern bind to sit squarely within your opening even when your lantern opening is not truly square (after the final skim your lanterns opening is rarely truly square) It also ensures there is no light ingress around the sides. The shelving at both ends is 170mm. This allows the Venus slimline hem bar to disappear above the shelf at both ends keeping a uniform look with just the fabric on show. For smaller Apollo roof blinds there is an option for 80mm shelving. The side shelving supporting the systems side channels are a slim 50mm.

Apollo Electric Roof Lantern Blinds Side Chnnel

Apollo Hem Bar & Crush Brush

The Apollo slimline 35mm hem bar has been designed to perform and not simply look good. It is suitable to withstand the 8kg of tension applied to it by the Venus electric roof blind allowing for elegance within small to medium-sized roof lanterns. When considering more powerful roof blind systems this slimline hem bar would no longer be viable.

The grey fuzzy brush on the end of the Venus Slimline hem bar is also known as the Crush Brush. It creates a seal between the hem bar and the tension box when your blind is closed. It also allows it to close quietly to avoid the sound of metal on metal. Grey is standard but sometimes black is used when maximising room darkening. White is only permitted when using a white screen fabric as it lets considerably more light transmit through it.

Apollo SOMFY Motors

Not all SOMFY motors are equal and can be used in our specialised roof blinds. Due to the power created by the Apollo electric roof blind, only a motor with sufficient torque can be selected. This allows your blind to defy gravity and travel horizontally at a controlled speed whilst maintaining tension on the fabric.

The Apollo Electric Roof Lantern blind uses a SOMFY Radio Transmitted Signal (RTS) motor as standard. This allows you to control your blind using a remote-control handset or remote-control wall-switch. The Apollo SOMFY RTS motor is compatible with the SOMFY Tahoma Switch which offers a simple gateway to smart living.

Alternatively, hardwired Somfy motors can be used on request which will allow compatibility with existing home automation systems such as Lightwave, Control-4 & Luxon

Apollo Solar Panel & Li-On Batery Stick

The Apollo solar panel is a very discrete sitting on top of the motor headbox. It’s only 6mm thick, 470mm long and 60mm wide and facing towards your roof lantern. The 3.2W solar panel captures the sun’s light, converting this energy into electrical energy to charge the Somfy battery stick. The battery stick is designed for high temperatures and stores the electrical energy ready to supply the Apollo Somfy low-consumption motor. As energy is used the solar panel will top up the battery stick as required.

The solar panels supplied for the Apollo electric roof blind are designed for low light environments including Scandinavia. The solar panel system with battery stick can open and close your electric Apollo Roof blind once a day for up to 45 days in complete darkness. The solar panels are very efficient, so as long as they are in the light, not necessarily direct sun, the blind will function fine.

Technical Fabrics


A fabric portfolio designed for outstanding performance so that your roof blind requirements are assured.


Solaye Sunshadow N 1% (Tight Weave) 3000mm Wide


This screen fabric has a very tight weave lending itself to roof lantern blinds requiring nighttime privacy, winter insulation and high levels of TV glare control

Lighter colours also offer good heat rejection.   

Strong, stable and in a wide width it offers your Apollo roof lantern blind a seamless finish designed for longevity at high tension.

Polyester Screen

Solar Reflectance (Rv%)

Light Transmission (Tv%)




White Beige



Beige Beige



White Grey



Grey Grey



Dark Grey






Solaye Sunshadow HT 1% (White Yarn) 3000mm Wide

This white-backed fabric range has a higher heat gain rejection than counterpart colours whilst still offering glare control when needed.  The colour side faces into the room whilst the white side faces up towards your lantern offering higher heat reflection.

Strong, stable and in a wide width it offers your Apollo roof lantern blind a seamless finish designed for longevity at high tension.


Solar Reflectance (Rv%)

Light Transmission (Tv%)

White / White



White / Beige



White / Sand



White / Grey



White / Dark Grey



White / Charcoal



Electric roof lantern blinds

Metallised Heat Rejecting Fabric 2400mm Wide


This metallised fabric has unrivalled heat rejection.

If your living space suffers from excessive heat gain then this fabric is a great consideration for your Apollo Large electric roof lantern blind.  The composition of the fabric means you have excellent heat rejection in all the colours and the glare control always remains the same.   White fabric in this range will not get the typical lightbox effect experienced with some of the fabrics in the portfolio such as the Solaye Sunshadow 3000HT White Yarn.

Heat Metallised

Solar Reflectance (Rv%)

Light Transmission (Tv%)













PVC Blackout (Glass Fibre Core) 3000mm Wide


The blackout range allows ultimate room darkening for bedrooms, cinematic TV rooms or simply because your bi-folds or sliding doors already offer high levels of light.

Winter insulation is a given with this fabric range with summer heat gain reduction best achieved with the lighter colours. 

The PVC range gives a false ceiling effect making it very popular. 


Solar Reflectance (Rv%)

Light Transmission (Tv%)













Dark Grey






Touch Control, Home Automation & Voice Assistance


The powerful SOMFY® motor connects your Apollo Electric Roof Lantern Blind to your home.


Touch Control (Radio Technology RTS)

The standard Somfy motors for the large Apollo electric roof blinds use radio technology.  This enables you to have a choice between a remote handset or a wireless wall switch included in your investment

A simple press of a button on your chosen remote control device sends out a radio wave signal to operate your roof lantern blind.  You don’t even need to point the handset at your roof blind.  The radio waves are omnidirectional and operate to a range of over 15 metres in any direction.  

Somfy radio technology utilizes a rolling code with 16 million combinations to ensure that RTS communication is both safe and secure.    This ensures that your controls will not interfere with other radio-controlled products in your home or adjoining neighbours.  


somfy touch controls

Somfy Tahoma Switch - Timers, Sensors & Voice Control

The Somfy Tahona Switch puts you in control of your Apollo electric roof lantern blind whether you are home or not.   With the ability to control your Apollo roof blind from anywhere in the world through the Tahoma App on your smartphone or tablet.

The Somfy Tahoma offers your roof lantern blind intelligence so that you get the very most from your investment.   Let Tahoma take control while you and your family focus on enjoying life.

Tahoma’s Timer settings can automatically open and close your roof blind at pre-set times.   Natural light in the morning for breakfast but closed in the evening for cosy family time.  

In addition, the Sunis IO Sensor can talk to your Tahoma.  If there is too much direct light passing your lantern your roof blind fabric will close.  This intelligence ensures that when you get home your living space has been kept cool from the summer heat without you having to give it a second thought.

This is a must for customers who are concerned about the fading of their wooden flooring and furnishing from sun damage.

Still not impressed?  The Tahoma is compatible with third-party devices such as Amazon Alexa, Google Assistant & Apple Homekit to allow you and your family to use voice control to operate your blind 

Tahoma switch & Sunis sensor

Loved by real customers

Our customers were once investigating electric roof lantnern blinds. Discover why they chose WindowTreat



In terms of looks and aesthetics, it's great.
Apollo Testimonial

Unique Warranty


A genuine warranty designed for customers. Caring beyond the installation

The Warranty

Your investment in WindowTreat's superior electric roof blind is protected by a 5-year 'peace of mind' warranty.

This covers all aspects of the roof blind system to function correctly. Any failure of the motor, fabric stitching, zip teeth or blind components will be rectified free of charge during the 5-year period after the installation.

The fabrics are UV stable, anti-microbial and flame retardant. Minor variations in fabric colour may occur over time but are considered standard wear and tear.

Any damage caused by accidents, misuse or unauthorised modifications to the roof blind system and fabric is not covered by this warranty. Example being - 

  • Any alterations to the blind other than by WindowTreat
  • Obstructions in the way of the blind when in use
  • Paint on the blind system when decorating
  • Stains of the cloth
  • Damage to the remote handset from 'misuse'
WindowTreat Warranty

The Apollo Electric Roof Lantern Blind Cost


From £3,180 Including VAT, Survey & Installation

"A large roof lantern without blinds is like a performance sports car with no brakes!"

- Steve Gargett, Managing Director of WindowTreat




Find out what our customers say about us online