​Different Types of Pitched Roofs With VELUX Windows.

Posted by Lawrie Fraser on 19th April 2024

Pirched Roof With VELUX Window

When renovating your home or loft. You may have the dooming question of should I re-roof my home. It is a question that can lead expanding budgets, and extended time frames. However, there is always a silver lining. Adding a roof window to pitched roofs can add up to double the amount of light a vertical window of the same size. However, all roofs are different, and our comprehensive guide lets you know which VELUX windows you need with your pitched roof.

Here are a few things to consider when looking to add a VELUX to a pitched roof:

  • The roof pitch.
  • The roof material.
  • The rafter & batten size.
  • The size of the room where the roof window will be installed.
  • Your budget.
  • Window Types.

What roof window do I need for my roof pitch?

VELUX Windows for up to 5 degrees pitch

Pitched roofs up to 5 degrees:

Although this may seem like a flat roof, some flat roofs are situated at a 5-degree pitch. In the occasion you have a 0-5 degrees roof, you should shop for flat roof windows.

Pitched roofs 10-20 degrees:

At this pitch standard roof windows are at jeopardy of leaking. VELUX innovative low pitch roof windows come with dual channel gutters and provide ultimate watertightness. However, it is important to note VELUX low pitch roof windows are only available for roofs covered with thick pan tiles.

Pitched roofs 15 degrees plus:

Roofs above 15 degrees are pretty common in the UK, usually paired with a roof covering of tile, slate, or cladding. At this pitch you will have complete access to our full roof window range. All the way from standard roof windows to roof window systems.

What flashing do I need for my roof window?

Flashings kits are particular to the roof’s coverings. You should always make sure you are 100% on which flashing kit you need before planning your conversion or renovation. Flashings differ from slate, tile, cladding, and thick flat tile. For some information on choosing the correct flashing kit for your roof window. Please read our complete flashing guide: https://www.yarddirect.com/velux-flashing-guide/

Understanding building regulations & rafters for roof windows:

Batten sizes determine the structural integrity of the roof. You will need to confirm this before choosing the size of your roof window. Usually within the UK battens are spaced out at 400mm, 450mm, or 600mm. However, they can be spaced up to a maximum of 610mm.

If you choose a roof window which requires you to cut into your rafters, we recommend confirming with your local building regulator or contractor no permissions are needed. Building regulations differ area by area.

In most cases if your roof window protrudes 150mm out your roof, you should again contact your building regulator or contractor for advice.

What floor area do i need for my roof window

The size of the room where the roof window is situated:

In general, most roof windows should be at least 20% of your room’s floor area. However, if you want to double your daylight. VELUX 2in1 roof windows allow up to 40% of your floor area without doubling on cost.

What roof window to purchase – by budget:

Premium:

VELUX roof windows are the world leading brand for roof windows & skylights. Focusing on thermal performance with u-values as low at 0.6 and handy features such as their top-handle, trickle vent, and cleaning position.

Keylite roof windows are a perfect option for every home. Coming in slightly cheaper than other brands, Keylite does not compromise quality for cost. With an innovative expanding collar, pre-installed pop-out brackets, and finger sash spring. Keylite is the most thermal stand range roof window while being the fastest to install.

Standard:

DAKEA Windows are manufactured by a VELUX sister company and are used nationwide by UK installers. DAKEA is lower in cost, but great on quality. DAKEA windows come in double and triple glazing, and a series of venting & roof window models.

Budget:

YARDLITE Is the UKs most trusted budget roof window selling thousands of windows a year into the UK. YARDLITE is owned by YARD Direct, a legacy brand in the roof window supply space. YARDLITE windows are equipped with everything other roof windows have such as 10 years warranty, quality guarantee, and price beat promise. As well as the UKs leading aftercare service for lifetime peace of mind.