Step 1

Decide on what size of rooflight or skylight you require to fit to your existing builders’ kerb or upstand. Please use our size guide chart for assistance. If you cannot identify the size you require from the chart, please contact our office and we can offer advice and/or alternatives.

 Step 2

Enter both internal finished measurements and the overall external waterproofed measurements’ in the boxes provided. See our attached diagram for assistance. Our office will use this information as a double check to ensure you have ordered the correct size and may even suggest an alternative option for you to consider.

It is important to remember that good `codes of practice’ would suggest that the top of the waterproofed kerb or upstand should be at least 150mm above the finished roof surface. If you can’t achieve this then it might be worth considering the `Outlook’ range as an option instead.

Step 3

Decide whether you require single, double, triple or quadruple skin dome.

Step 4

Decide whether you require all skin(s) to be clear or whether you require the inner/single skin to be obscure.

The important thing to remember is that we are here to help. If you are not quite sure what your correct options or requirements are then please contact our office for advice and/or alternatives. We don’t want you ordering the wrong product, having to return it and then incurring both restocking and pick up charges.