6 Things You Should Know About Roof Windows

6 Things You Should Know About Roof Windows

Roof windows can be an excellent addition to your house and significantly increase the amount of natural light entering your home, which is not only healthy for our bodies but also for our mind. They will also affect the appearance of your house and increase the value of your property.

However, if you haven’t owned such windows before, you might want to know more about this particular product before you decide to buy and install them. Here are the top six things you should know about roof windows.

Types of Roof Windows

When it comes to the roof windows, there are a couple of types based on how the window opens.

  • Top hung windows – a roof window that opens from a hinge on the top of the window, suited best for smaller spaces as it doesn’t take a lot of space in the room, and for rooms in connection with a high knee wall.
  • Flat windows – usually placed in the ceiling without an option to open them, installed to increase the amount of natural daylight. It is getting more and more popular with almost every major brand producing a model or two, like fakro flat roof windows.
  • Centre pivot windows – opens out from a hinge halfway down the window, which makes it easy to open. This particular type provides the best ventilation.

Choosing the Right Place for Roof Windows

Once you have settled on the type of roof windows that will be most suitable for your house, it is time to find the perfect spot for installation. Everything will depend on the roof slope, but each of them will require flashing to provide a seal between the window and the roof. Your contractor will face the task of assessing the angle of the roof slope, the model you choose, and roof materials to indicate the suitable places for the window installation.

How Many Windows Do You Need?

If you are looking for an answer to a question, how many roof windows do you need — the answer is as many as you like and your roof can handle. However, for the optimal amount of natural light inside without spending a lot of money, it is recommended to make the roof windows around 20% of the total size of your roof. The actual number will, of course, vary based on the size and type of windows you pick.

Innovative Ventilation

The new models of roof windows tend to feature a few innovative ventilation features that will enable you to enjoy fresh air even with your windows closed, which is a great asset especially during the colder months of the year when you don’t want too much heat escaping when you ventilate. You might also consider buying windows that have a ventilation flap that can circulate the air through an air filter, which will contribute to the quality of the air inside your house.

6 Things You Should Know About Roof Windows

Building Regulations for Roof Windows

Typically, you do not need to apply for a special permit to install roof windows inside your house, but only if the alterations you plan to make are within certain limits:

  • no more than 15 cm from the existing roof plane,
  • not higher than the highest part of the roof,
  • at least 1.7 m above the floor.

What About Blinds?

If you plan to install roof windows in any of your bedrooms, it is essential that you install blinds as well. The blinds will help you control the temperature of the room as well as the amount of light entering it while you sleep. Blinds will be most beneficial during summer when the amount of sunlight is at its highest. It has been proven that you get the best quality of sleep in total darkness, which can be only achieved with blinds.


Roof windows can really improve the quality of life inside your home. They will help with ventilation, increase the amount of natural light, and maybe even improve the quality of the air in your home. Find the type most suitable for your house and install them as soon as you have the opportunity.

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