Correct instalation of ridg vent tiles

[DCM]

Hi, i have just had some work done to my roof part of which was to install extra ventalation due to recent condensation problems after increasing the amount of insulation.

The guy has installed two ventalation tiles on the ridge of the roof at either side of the roof. Upon inspecting them from inside the attic there has not been any removal of the roof lining on the inside of the roof (which is not a breathable membrane hence the condensation issue) to open up the ventalation to the newly installed tiles.

My question is should this have been done? At the moment i cant see how what he's done would improve the ventalation as the airflow is still restricted by the roof lining.

Thanks for reading and any advice.

 

[datarebal]

it should be cut out to allow flow.. simply locate vents and cut around spigot with stanley knife.. 2 mins job.

 

[Nige F]

Were you out when job was done ..no access to attic

 

[HaydnExport]

the tile would have come with a spigot and if you have a ridge board it needs to be cut. Get the 'roofer' back to do it properly.

 

[Roofer]

the tile would have come with a spigot and if you have a ridge board it needs to be cut. Get the 'roofer' back to do it properly.

Not all ridge vents come with a spigot and the spigot only has a use when connecting to SVP or extract.

The ridge board does not necessarily need to be cut but the underlay definitely does, it may be cut but just difficult to see.

 

[Alastairreid]

The guy has installed two ventalation tiles on the ridge of the roof at either side of the roof.

ridge vent or tile vent? either way needs a clear opening to vent

 

[DCM]

Thanks for the replies guys.

The tiles installed are ridge tiles. I definitely don't think the roof lining has been cut at all nor can I see any day light up through the new vent tiles. He never went in the attic neither. I don't know if i have a ridge board, is it possible to tell that without getting on the roof and lifting the tile?

Luck for me he hasn't been back yet to get paid!

 

[Nige F]

look in the loft for ridge board. If you`ve got trusses..like factory made with metal plates holding them together - no ridge board. If you`ve got a cut + pitched roof , sawn timber assembled by a carpenter, you`ll have a ridge board @ the top of the rafters. Give the roofer a chance to go up there and cut a way through.

 

[DCM]

Thanks Nige, will do.