Key considerations before you buy roof windows | RW4Y
Date: 13.06.2024

Key considerations before you buy roof windows

If you’re thinking about adding roof windows to your home it makes sense to do your research first. You’re probably already aware of some of the benefits, from improved ventilation and better natural light, but with so many options available it can feel like a challenge knowing where to start. In this guide, we look at the key considerations before you buy roof windows, including sizes and styles, the type of roofs, materials, and security.

room with centre pivot roof windows

Sizes and styles

Roof windows come in different sizes and styles to suit all kinds of homes and room shapes.
Our range has plenty of options to choose from, so consider which of the following best suits your needs:

Pitched roof windows

Pitched roof windows are available in sizes and styles to suit the space you’re working with. Our range includes centre pivot roof windows, top-hung roof windows (which can be opened in centre pivot mode), roof access windows, roof windows suitable for conservation areas, and even electrically operated roof windows.

Our Z-Wave (electric) windows are operated by remote control and are even equipped with a sensor, which automatically closes the sash during rain, making them a great choice for hard-to-reach spaces.

pitched roof windows
flat roof windows

Flat roof windows

If you have a flat roof, our flat roof windows or domed roof windows could be just what you need. Flat roof windows are built with multi-chamber PVC profiles, made from a material with very low moisture absorption, making them suitable for use in any room.

Our domed roof windows are another option. These are made from durable polycarbonate, can withstand adverse weather conditions and are made to resist shattering. They come in a number of sizes and are available in manual, electrically operated and non-opening styles.

Light tunnels

Light tunnels offer a solution for rooms where roof windows or even vertical windows aren’t possible. Light tunnels bring daylight to otherwise dark rooms by reflecting light against the tube walls and directing it into the room below. They’re a great option for those looking to reduce the need for artificial lighting. Flexible tube light tunnels can even bend around objects.

Cirrus lantern roofs

The purpose-designed Cirrus aluminium lantern roof system floods the room with light. With seven styles to choose from and excellent thermal performance, thanks to an innovative thermally broken system that keeps you cool in summer and warm in winter, Cirrus lantern roofs are a practical and stylish option.


It’s crucial to use the right materials for your roof windows, as their suitability varies depending on the space and environment.

Wooden windows

Our wooden roof windows are coated with polyurethane varnish to provide a smooth, durable surface. They are an ideal choice for rooms with periodically elevated humidity levels, such as kitchens.

wooden windows

Aluminium-plastic windows

Our aluminium-plastic structure windows feature multi-chamber PVC profiles and are reinforced with galvanised steel. They are corrosion resistant and do not absorb moisture, making them the right choice for more regularly humid spaces, including bathrooms. These windows are covered with pressed profiles from aluminium sheet coated with weather-resistant modified grey-brown polyester. These windows also tend to have fewer maintenance requirements than wooden windows.

Energy efficiency and insulation

It’s well worth taking the time to evaluate the energy efficiency and insulation offered by your roof windows, as this can lead to long-term savings, such as lower heating costs. FAKRO roof windows boast high thermal insulation performance, to prevent heat loss in winter and avoid excessive heat penetration in warmer temperatures. 

We offer windows with a single, double or triple chamber glazing unit, while their PVC profiles are filled with insulating material, making them a great addition to an energy-efficient home.

Safety and security

If it’s safety and security you need, FAKRO’s topSafe® reinforcement anti-burglary system gives extra peace of mind. It uses metal reinforcements and mounted hinges, which make it far harder for roof windows to be forced open. All our roof windows meet a minimum Class III – EN13049, a standard FAKRO was first to achieve.

Ventilation and moisture control

A good level of ventilation and moisture control is essential to protect your home from condensation and poor air quality. Unlike traditional window air vent systems, which can only be set to ‘open’ or ‘close’, all FAKRO roof windows come with the semi-automatic, V40P air vent as standard. This wind sensor automatically responds to changes in the external wind pressure, so you can relax, safe in the knowledge that air circulation to the room is under control.

ventilation and moisture control
regulatory compliance and permits

Regulatory compliance and permits

Please check local building regulations and, if necessary, obtain planning approval before you install your roof windows. This will make sure your installation is legal and minimise problems.

We hope these key considerations before you buy roof windows prove useful. Are you ready to make a purchase? Call the RW4Y team on 0333 600 9090 or get in touch.


How Eco-Friendly are Roof Windows?

Globally, we are becoming more aware of the impact we are having on the environment. Since the showing of 2018's...

Do you need planning permission for skylights and roof windows?

When you're planning a loft conversion, an extension, or any other building work to your property, knowing what paperwork you...

FAKRO Supports Ecology and Energy-Efficiency in Roof Windows

South Derbyshire based roof window manufacturer FAKRO does not only pay attention to the smallest details when developing its innovative...