Missing Weep Vents

[Rmichie]

Hi 

 

We have noticed that we are missing weep vents where we have a cavity barrier on the gable end of our house. We have them everywhere else that we have a cavity barrier round the property. Is this likely to be a big issue to fix? And indeed do we need to have this fixed?

 

On a separate note  - all our weep vents project around 35mm from the rendered finish on our property - it doesn't look very good - is there a standard that they should meet? I had assumed they should be flush with the wall. 

 

Thank you.