Studies prove that high levels of Vitamin D are good for humans because it helps to promote calcium for bone growth and helps to regulate the immune system. Exposure to daylight is also good for sleep.

A study carried out by a host of universities and the VELUX Group found that exposure to lots of natural light and sun during the day, followed by sleeping in total darkness, helps to improve sleep quality and to take cues on when to sleep.

Flat roof windows are a fantastic addition to any home, freeing up spaces to be more usable and more enticing, offering more use of your existing space. There are only two limitations for flat roof windows; they must have the right amount of flat roof space to accommodate the window and upstand, and the roof must be between 0 and 15 degrees.

There are many types of flat roof windows to choose from depending on where they’re being installed and what their main purpose is. There’s a specific type of flat rooflight that will suit your application, whether it’s fixed rooflights, opening rooflights, roof lanterns, roof domes and the ever-popular sun tunnels. Click the link below to read our flat roof window buyer's guide:

Fixed rooflights are perfect for stairwells, where it would be hard to reach the window to open it. Fixed rooflights are also great for areas where security is an additional factor as they’re locked and sealed shut.

Opening rooflights can be opened and closed at will to aerate a space and to let daylight in.

Options to have a lockable opening rooflight take into consideration any security concerns but opening rooflights can be designed to give you full access. They are perfect for installation in flat roofs with a roof terrace for example, or as an emergency exit hatch.

Pyramid skylights, also known as roof lanterns, are pointed, pyramid-shaped flat rooflights that provide not only a stunning focal point but let light flood in.

Flat roof sun tunnels, also known as sun pipes, sun tubes and light tunnels, are a simple, cost-effective way of bringing more natural daylight into your home. Click the link below to read our guide 'what is a sun tunnel':