repairing a bathroom roofvent

[Stevie#]

hi I'm am looking for information and help on repairing a roof vent on a older caravan. it is a Abby Aventura 330 six berth. during very high winds a number of caravans were damaged by flying debris. the bathroom roof vent on mine was damaged and i am looking to replace it but i am unsure of what size i need. the internal opening is 380 x 380 so don't know if i need a 400 x 400 cover. any help would be appreciated.

thanks
Stevie

 

[audiorob]

I think it possible that yours in an imperial 15 inch opening, you may like to search for caravan breakers in your area but may now be a long shot... from several selling sites specs the 400 square is to fit an opening of that size so too big.