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Air Tightness

This refers to how much cold/hot air enters into a building, or how much is lost through gaps, cracks and holes.

Our roof lights have been designed to maximise on air tightness, ensuring that the very minimum amount of air escapes or enters your home. With less air leakage, you will reduce your energy consumption and costs.

Argon Gas

Argon gas is a type of noble gas which helps to increase energy efficiency when injected in the cavity of glass panes. Argon provides extra insulation and also improves sound proofing.

Actuator

An actuator, or motor is responsible for lifting a roof light into the open position and can be controlled via a switch. In our units, the actuator is built into the kerb to maintain the contemporary design.

Decibels (db)

Decibel is a measurement of sound pressure level. The decibel measurement indicates how effective the external sound is insulated by. The lower the decibel reading, the more insulation provided and the less sound coming in, or escaping.

CE Marking

CE marking is a certification that a product is in compliance with EU legislation. All of our products are CE marked, giving you the confidence that our roof lights are approved for sale.

DANAK

This is the Danish Accreditation and Metrology Fund, a company that handles the accreditation of certification and inspection in Denmark.

As exclusive stockist of the SkyVision series by Vitral, The DANAK certification is important as it shows that the manufacturer meets the strict guidelines set by this body.

DS Certified

The Danish Standard is Denmark’s national standardization body. Our rooflights have been fully DS certified again emphasising the quality of our products.

Flat Roof

Most commonly found on single storey extensions, flat roofs are generally cheaper to construct than a tiled alternative. Our rooflights are designed for installation on flat or low-pitched roofs.

Gasket

This is the rubber seal that fills the space between two surfaces to avoid leakage. All of our roof lights include this feature as standard.

Insulated

Insulation reduces heat loss by providing a barrier between areas of differing temperatures, i.e. the inside and outside of your home. By choosing an insulated rooflight and kerb you will let more light into your home, whilst still remaining energy efficient.

Laminated Glass

This offers increased protection to ordinary glass, with sound proofing properties too. It has an interlayer which holds the sheets together and greatly reduces the danger of small sharp fragments when obstructed.

Krypton

Like Argon, Krypton is a type of noble gas which is injected into the panes to improve energy efficiency.

It is more effective than Argon, especially when used in triple glazed units with a narrow cavity. We use Krypton in our Eco rooflights to ensure an ultra energy efficient product with an exceptional U Value.

Silk Screen

This is the banding on the glass which protects the upstand and rubbers against UV rays which can otherwise cause damage. All of our products come with silk screen banding as standard.

Sky Lights

Sky lights and roof lights are the same. The term roof window is also occasionally used, but all of these terms are interchangeable.

Thermal Efficiency

This measures how effective your roof light is at maintaining heat. Those that are well insulated will be more thermally efficient. This is recorded as U Value – the lower this value is, the more efficient your frame is.

Toughened Glass

This type of glass breaks into small shards when it is smashed. It has a high resistance to breakage as it is crafted by heating glass above 600°C and then rapidly cooling the surfaces whilst maintaining the heat in the middle.

Transformer

The transformer is an electric device that reduces mains power to low voltage required to operate our electric rooflights. We include a transformer as standard.

Upstand

Roof lights for flat roofs are supported by an upstand or kerb. Current building regulations require a 150mm upstand which we supply with all our products. Our upstands are pre-insulated to ensure they satisfy and exceed regulations and are the perfect fit.

U-Value

Thermal transmittance or efficiency is commonly known as U-Value, and is the measurement of the rate of heat loss. Recorded as W/m2K (watts per square metre, per degree Kelvin), the lower this value is, the better.

Water Tightness

This is a test of how water penetrates materials, and is conducted by applying water spray at a particular measurement per minute to the outside of the roof light whilst steadily increasing the air pressure.

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4.85 Average

246 Reviews

PeterJaggard

Brilliant company to work with, always ready to assist, and very good communication. Excellent product, of great quality and looks brilliant, well pleased. Thanks to all at EOS

Posted 1 week ago

MadeleineBradbury

Delighted with our rooflights. EOS did everything they said they would do when they said they would do it. We were a bit nervous about doing our own fitting but we got precise, practical instruction diagrams and all went very smoothly

Posted 1 week ago

JeffereySmith

Excellent rooflights and easy to fit

Posted 3 weeks ago

AndrewHamilton

Excellent product, delivered on time. Would certainly use this company again,

Posted 1 month ago

Anonymous

Rooflights are high quality and fixing instructions clear.

Posted 1 month ago

PaulSeabright

A great product. The speed and efficiency of the online purchase and then the delivery of the items made the process a hassle free pleasure that is all to rare these days.

Posted 1 month ago

KevinTimmins

From ordering to receiving our rooflight everything went great, we built the upstand ourselves from the drawings supplied and the light fitted perfectly. Excellent product at a great price. Wish everything on our extension went that well. 5 stars all round.

Posted 1 month ago

ShafiqCaan

Hi, excellent service and they added solar control without additional charge.

Posted 1 month ago

Anonymous

Clearly a top quality roof light which is beautifully made. I looked at several manufacturers and the EOS had the best insulation among those I looked at. The frame is substantially made and the glass perfectly set into it. It was really simple to fit and the superb drawings allowed me to construct the kirb with confidence and accuracy. Delivery was fast and the unit well supported and protected on a pallet.

Posted 1 month ago

Jeremy

Very impressed with dealing with EOS, great quality product, courteous and good communication which helped make my decision to purchase the 2 Roof lights I needed from them. Thanks for your help.

Posted 1 month ago

Michael

Roof lights turned up day we asked for van driver was very helpful and in position look great !!!

Posted 1 month ago

Joe

Great product and customer service

Posted 2 months ago

Ray

I was really pleased with the quality of the roof lanterns I ordered 2mt x 1mt and 1.5mt x 1mt. We have all heard the old saying you only get what you pay for and this product is spot on ,great build quality would highly recommend

Posted 2 months ago

Richard

I always get my sky lights from EOS. They are reliable, friendly and very good quality. There technical help is invaluable. Richard Abbey Building

Posted 2 months ago

Andy

We recently bought an opening roof light 1 metre x 1500 and a fixed roof light 1 metre x 1500 and we have found EOS Rooflights very competitive in price and of high quality also technical advice was very good.

Posted 2 months ago

Nicola

In the middle of Covid 19 lockdown they were able to advise, honestly estimating the future timing of delivery. I had to wait, which was not surprising, but their service was very personal.

Posted 2 months ago

Paul

Very good quality flat roof windows , good seling-advice service , fast delivery.

Posted 2 months ago

Anonymous

Ordered my roof light well in advance of delivery date And it arrived on the pre arranged date. The item came with fantastic fitting instructions and requirements, a pleasure to fit. I’ll be recommending these products to future clients. Nice to see great design and ease of fitting with a sales and delivery service to back it up.

Posted 2 months ago

Anonymous

Quotation was prompt, the technical questions I asked were promptly replied to by the team and when the order was placed, I was kept updated with progression and delivery date. My non-standard delivery request (by hiab lorry to off load) was handled well and I would recommend if you don't have a team of burly builders as the window and upstand (mine was 3.2m x 1.3m) is exceptionally well made, robust and very heavy!

Posted 2 months ago

Anonymous

EOS Rooflights provided two high quality rooflights which were well well made (when compared to others I have seen), with good customer service from Elliot and Chris including drawings and installation advice. The delivery company were however a disappointment, using a lorry which was too high for the builder to safely unload from, and a driver who couldn't be less bothered. EOS recognised this and offered compensation.

Posted 2 months ago

Iona

Excellent all round. Very happy with the rooflights and the excellent customer service and follow up care. Happy to recommend EOS!

Posted 2 months ago