How To Install A Dormer Window

Guide to Dormer Window Design

Inserting a dormer window into the slope of the roof could exist the best way to maximise infinite in your domicile, just information technology's got to look practiced outside. Emily Smith investigates the options

What type of dormer window should I use?

Deciding what style of dormer is right for your project will largely depend on the outside appearance of your home.

The trick is to exist consistent, both with shape and materials – for instance, if you've got gable ends on your property then go with a gable dormer.

Read more: 15 ways to add value & kerb appeal

Another thing to note is the pitch of the main roof – flat-topped dormers tend to work best on shallow coverings because they don't need every bit much summit as another designs, for example.

Diagram showing types of dormer window

While dormer windows at the front of the house will demand formal planning permission, rear additions commonly fall under permitted development (PD) rights. Only recall that rules change depending on where you live, and then it's e'er appropriate to seek guidance from your local authority.

Read more: Time is running out on permitted development rights

There are also regulations most how much space can be added within the business firm – 40m3 for terrace properties and 50m3 for a semi or detached house.

Most dormers will fit into these brackets, but you may need to re-recall if yous're planning to add a full-width style.

Browse the gallery for more dormer window designs:

An Expert View

Architect Kieran Gaffney from Konishi Gaffney answers your questions nigh dormers:

How tin can I decide what size dormer is right for my house?

These windows jut out of the roof shape to create more than headroom, just the bigger they go, the uglier they tend to look – the flim-flam is to make sure they practice the chore while looking aesthetically pleasing exterior. Details like this need some proficient input, and then work with an architect to get it right.

Try to continue dormers modest and thin and exist consequent with style – stick to a sleek appearance if the firm is gimmicky and use proper traditional details to remain in keeping with a menstruum look. It'due south best to avoid using too many materials, so go on it simple.

This cottage-way dormer provides a low-cal source and extra headroom

How much headroom can a dormer window bring to a loft conversion?

Often more than you think. Mod box dormers can add lots of room and expect wonderful inside, simply can sometimes wait out of place externally.

The size required actually depends on the height of the roof. If you're converting a loft that has a very low ceiling then you lot'll need a bigger dormer, but get smaller if you have a deep pitch and tin can stand up easily inside.

Read more than: six vital considerations for your loft conversion

Be aware that traditionally built roofs are often cocky-supporting, then you may demand to bring in boosted structural support (ordinarily a ridge axle). Your structural engineer and builder will be able to offering advice on what's needed.

It is possible to bring a contemporary twist to a dormer window?

Quirky designs can work, but it depends on the roof shape and space needed inside. Consider extending the glass around the edges into the haffitt (the triangular sides) for more views out and daylight in.

Sometimes it works to break the rules past putting a modern-looking style into a catamenia property – we did this on the firm pictured beneath left – simply information technology'south harder to become this right.

When might a dormer window be more suitable than adding some other full floor on a new build?

While a consummate storey is oftentimes preferable, in that location may be reasons why you're express. You could face planning restrictions on how tall your house can exist, for case.

Some planners also have limitations on how large the dormer tin exist, so it's ever worth talking to your local authorization prior to submitting an application for something like this.

The positive thing about putting a dormer window into a new belongings is that it'due south easier to make information technology experience well-integrated into the design than if you're retrofitting.

Ensuite in Dormer Loft Conversion

When Gary and Linda wanted to provide plenty room for an elderly relative to motion in, they were swell to maximise the potential for actress habitable space in their home's loft.

The idea was to transform the unused attic into a large new bedroom suite for their teenage daughter, freeing up space downstairs for the extra family member.

The couple received planning permission for the scheme, just waited a year and a one-half before starting works in order to go finances in place.

read their story

What rules and regulations are there for dormer windows?

While y'all tin can utilize almost any window, remember that information technology'southward more exposed to the elements considering it'due south positioned high. Think almost protection confronting driving rain; setting the structure slightly dorsum from the building edge or incorporating an overhang are good solutions.

You lot'll also need to make sure it'southward safe – there are guidelines to ensure nobody can autumn out of loftier windows, and so you might demand a bulwark of some sort.

Also, you'll probably demand to prove that the glass can be cleaned without someone leaning out and risking their condom. That could mean having the unit opening inwards or demonstrating at that place'due south a safe style of cleaning it.

Image (top): Gabled dormer window from an affordable harbinger bale eco domicile

Source: https://www.self-build.co.uk/guide-dormer-window-design/

Posted by: oberlinimar1985.blogspot.com

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