Window should it have a drip sill

[GrantMcscott]

Hi

Bricklayer is install window sills and he think that my Velux windows should have a drip sill.  I have contacted Velux and looked at the instructions and it does not have anything else.

 

I am just going to mastic the gap between window and sill

 

Is this correct

 

[Hobbiniho]

iv just had a look at the instructions https://www.velux.co.uk/professional/technical-resources/installation-guides and dependant on what flashing kit and window you have depends on how the cill sits, what window and kit do you have?? to me it looks like the cill is too high and possibly not the right shape to work with the velux windows, the flat bit of the cill should be under the window, but it is likely too big if you mastic the gap at the bottow as the instructions suggest you will have a flat bit that water will collect on 

[GrantMcscott]

38 minutes ago, Hobbiniho said:

iv just had a look at the instructions https://www.velux.co.uk/professional/technical-resources/installation-guides and dependant on what flashing kit and window you have depends on how the cill sits, what window and kit do you have?? to me it looks like the cill is too high and possibly not the right shape to work with the velux windows, the flat bit of the cill should be under the window, but it is likely too big if you mastic the gap at the bottow as the instructions suggest you will have a flat bit that water will collect on 

 

Hi thanks for the reply.  The window are vfe MK35