Roof Measuring Guides

We’ve put together this helpful visual guide to help you measure your roof like a pro.

Understanding Your Roof Type

Below are the 4 most common types of roof found in the UK.

Flat Roof

Hipped Roof

Gable Roof

Monopitch Roof

Calculating Roof Area

Calculating an area is quite simple, you will require a tape measure and a calculator. Simpy measure the rafter length (y) and eaves width (x) of your roof and then multiply them together.

For example:

If your eaves width is 3 metres and the rafters are 2 metres long then you will have a surface area of 6 metres square (3m x 2m = 6m2)

The example shown is a monopitch roof, the same formula applies to hipped and gable roofs but you will need to multiply the outcome x 2.

Basic Area Calculator

The Anatomy of a Roof

The Key

  1. Flat Roof Window
  2. Eaves
  3. Pitched Roof Window
  4. Hip
  5. Ridge
  6. Chimney Pot
  7. Chimney
  8. Valley
  9. Verge
  10. Gutter
  11. Downpipe
  12. Flashing
  13. Fascia & Soffit
SHARE YOUR CART