Stella Conservation Rooflights

Bespoke Conservation Rooflights

Stella Rooflight is the only UK company to only offer completely bespoke made conservation rooflights. In doing so, we can help you to create a roof window that will not only look stunning, but satisfy your Conservation Officer. Don’t settle for an off the shelf product. As all Stella rooflights are bespoke made to suit your conservation property, we can design the shape and size to fit between your rafters, with a design that fits your traditional property. Experience shows that flexibility in your conservation rooflight design (rather than making adjustments to your roof) will help you achieve planning consent first time around.

Ideal for installation in conservation properties

Stella rooflights and skylights are ideal for installation in any project but especially period properties, Listed buildings, barn conversions or areas where flush fitting, low profile design, glazing is required. What differentiates a Stella Conservation Rooflight from the others and makes it the most authentic is our attention to detail and the use of natural materials.

Stella conservation rooflights are designed to sit flush within a slate, tile or metal roof at a pitch of between 17 and 70 degrees. Watch this video from the Association of Master Roofers, showing a Stella Rooflight installation in a slate roof.

All Stella rooflights are bespoke made to suit your conservation property.

Conservation Rooflights Stella Rooflights


Pitched roof between 17 and 70 degrees

Conservation Rooflights Stella Rooflights
Conservation Rooflights Stella Rooflights


316L Stainless steel
Flashing: Lead – code to suit application

Finish: Polyester powder coat in C5 marine application

Colour: RAL colour TBC by Architect

Opening: Manual brass screw thread to 250mm opening for ventilation (subject to size). Electric cill mounted chain drives up to 600mm for ventilation. Optional switching/remote, rain sensor, wind sensor, control panel.

Conservation Rooflights Stella Rooflights
Conservation Rooflights Stella Rooflights


(U-Value): 1.1 W/m²K – 1.6 W/m²K whole unit value achievable subject to design requirements. Performance tested to BS EN ISO 10077-1:2017

Conservation Rooflights Stella Rooflights
Conservation Rooflights Stella Rooflights


American ash with neutral oil protective
coating as standard. Other hardwood
options and paint finishes available integrity

Conservation Rooflights Stella Rooflights


Wind & weather performance to harmonised standard BS EN 14351-1:2006 + A1:2010

Conservation Rooflights Stella Rooflights


Double or triple glazed.
Outer: Toughened BioClean Natura, self-clean & solar control
Spacer: Black, warm edge, silicone sealed
Inner: Toughened Planitherm One Low E
Thickness: Subject to sizing
Genuine glazing Bars: Optional
Fitting: 4mm double sided security glazing tape (4mm)
Beading: Specialist silicone suitable for use with Bio-Clean, self-clean glass. Black as standard

Conservation Rooflights Stella Rooflights


Range of manual or electric pleated blackout

Sympathetic detailing

For period properties, Listed buildings or those situated in a conservation area, sympathetic detailing is also likely to be a condition of consent. New openings should generally be kept to a minimum and should be of a simple form that respects the building’s character.

​Dormer windows are not usually appropriate, so any new window openings in the roof will be rooflights, and in most instances metal conservation-style rooflights which sit flush with the line of the roof. Modern bulky framed rooflights usually look wrong and it is therefore best to install genuine conservation rooflights.

Conservation Rooflights Stella Rooflights
Conservation Rooflights Stella Rooflights

Low profile design

Stella rooflights are ideal for barn conversions, period properties and the heritage property market. Our conservation rooflights are easily recognised by their low profile design, which means they sit flush and remain unobtrusive to the building’s original architecture.

Another characteristic is their slender appearance and thin profile, as conservation requirements stipulate that a minimal amount of framework should be visible, particularly if rooflights are placed next to each other.

Genuine glazing bars

Another feature of a genuine conservation rooflight is the glazing mullion (glazing bar) which separates the glazing into sections. A Stella rooflight follows the traditional conservation rooflight design and offers genuine glazing bars. This particular design feature is integral to the rooflight and not only provides a more authentic look but offers increased strength for the opening section.

​There are a number of manufacturers who claim to offer conservation roof windows but have opted to remove the traditional bar in favour of sticking something to the double glazed unit. Not only does this risk damaging self-clean glazing or worse, having it fall off after a few years, it also significantly detracts from the original conservation rooflight appearance.

Conservation Rooflights Stella Rooflights
Conservation Rooflights Stella Rooflights

Standing the test of time

Stella is the only company who manufacture rooflights using Marine Grade 316L Stainless Steel as standard. This makes a Stella rooflight the best performing conservation rooflight you can buy as a standard product.

Using steel allows manufacturers to best replicate the original conservation rooflight, However, all other genuine metal conservation rooflight manufacturers will use mild steel, which pose a significantly higher risk of rusting.

​Stella’s Marine Grade 316L stainless steel construction offers significantly more protection and longevity than a mild steel alternative.

If your property is located in near the sea, or a salt water estuary or even near a road which is heavily salted in the winter, then you should consider a Marine Grade 316L stainless frame. The Stella rooflight is the perfect coastal rooflight solution.

​By using a better quality steel you can be sure that a Stella conservation skylight will offer unbeatable performance and longevity.

British design and manufacturing

All Stella rooflights are designed, manufactured and assembled in the UK. This enables us to maintain exceptional standards throughout the design and build process.

We will not compromise on the performance of our highest quality rooflights. Stella conservation rooflights are supplied triple glazed with self-clean glass and beautiful real wood linings.

While the UK manufacturing process has the benefits of enabling greater control over our quality and development, it also helps to reduce the carbon footprint of the product compared to other suppliers who source and import often inferior quality components from overseas.

Conservation Rooflights Stella Rooflights

A different view

All Stella Conservation rooflights are bespoke made, however this is how one of our typical rooflights might look.

​Of course, you can choose the exact size, colour, glazing type, internal liner material and whether you would like an opening or fixed shut rooflight. If opening, you can also decide whether you would like a mechanical winding or electronically actuated opening mechanism.


A guide to conservation rooflights

What is a conservation rooflight? What should I consider when choosing a rooflight? What are my options for consevration rooflight? These are some of the questions asked in this guide to conservation roof lights.


Conservation roof lights glazing bars

This blog discusses the important considerations for conservation rooflight glazing bars, including what are conservation roof light glazing bars? And why are glazing bars on rooflights important?


Building regulations and
conservation rooflights

Anyone wishing to install conservation roof windows in a conservation property or Listed building should understand the Building Regulations surrounding conservation roof lights. Read about the rules on roof windows and traditional buildings.


Maintenance and care of conservation rooflights

Read about metal conservation style rooflights and maintenance. This blog provides practical advice and guidance, including a recommended rooflight maintenance schedule for steel rooflights.


Rooflights and planning permission

This blog will help you determine whether you need planning permission for your skylights and offer tips and advice on installing a rooflight in a Listed property.


A history of conservation rooflights

Conservation or heritage rooflights have been an important part of our architectural design for centuries. Find out how modern conservation rooflights play an important role in modern architecture.


The Ultimate Guide to Conservation Rooflights

Independent expert advice for architects, builders and homeowners