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How to Measure For a New Roof Lantern

How to Measure For a New Roof Lantern

Roof lanterns not only offer practical benefits such as increased natural light, but they also add a touch of elegance and style. However, to ensure the perfect fit and finish it is important to get your measurements absolutely exact.

We would always recommend asking a professional for help and guidance, but if you are planning on installing your own roof lantern, or would like measurements to get an accurate quote, the following guide may help.

Tools

You will only need a few tools to help you measure for your new roof lantern:

  • Tape measure
  • Safe and sturdy ladder - if you cannot reach your roof
  • Pencil and paper
  • Protractor or level

Measure the roof opening

Firstly, measure the width and length of the roof opening from the inside. We always recommend measuring more than once to ensure accuracy. Note down the largest measurements to ensure the roof lantern will fit comfortably.

Consider roof pitch and angle

Next, you need to consider the pitch of your new roof lantern, as this will have an impact on its size and shape. Measure your angle of choice with a protractor or level accurately.

Measure external kerb dimensions

Finally, measure the external kerb dimensions of your roof, considering any projections or obstructions which may affect the fitting of the roof lantern. Measure both the width and depth of the kerb to ensure the lantern can sit flush once installed.

Factoring in frame and structural support

It is important to consider the thickness of the roof lantern frame as well as any structural supports required for the installation, and factor these into your final measurements. When it comes to best practices for measuring roof lanterns, there are two key points to remember:

  • Measure. A lot! It's advisable to measure at least three times to ensure measurement accuracy.
  • Consult a professional. To ensure your new roof lantern fits perfectly and you have the roof lantern of your dreams, it is always advisable to employ the services of a professional.

Hopefully the above has provided you with a starting point for measuring your new roof lantern, but if you have any queries or would like further information about our range of roof lanterns, call our expert team today on 0800 22 77 77.



National Plastics is a trading name of Specialist Building Products Limited, a wholly owned subsidiary of the Epwin Group. Specialist Building Products Limited is registered in England & Wales. Company Registration number: 1268689. Registered Office: Friars Gate, 1011 Stratford Road, Shirley, Solihull, West Midlands B90 4BN. VAT Registration No. 864 4507 10