Advice for venting roof space.

[gaz116]

Hi,

Shortly i`m going to be stripping off an old slate roof and reslating it in marley eternits.

I will be using dry vent ridge system (sandtoft) and will be using breathable underlay.

I`m just wondering if i should be putting a few slate vents in to help with crossflow.

I don`t think the roof has any eaves vents , it`s an old roof and the fascia board is literally a piece of skirting board nailed flush to the brick.
However, they have not had complaints of condenstaion with the old roof (although obviuosly it had no felt).
So i`m thinking should i possibly stick a couple of low level tile vents in to create a flow through to the vented ridge line? Or would the vented ridge line with breathable felt be enough to provide adeaquate ventilation?

edit: Forgot to mention, i will be fitting 3 in 1 fascia vent system - 10mm fascia vent, roll form , and felt support trays.

 

[scotterillo]

if your using breathable felt, and fascia board vents alongside the vented ridge system, you have done enough mate. No need for tile vents.

 

[danielroofer]

Should be fine with what you have specified. Anymore might be too much. Cant see you having any problems.