Roof Ventilation Options

dodgydl

I have issued with condensation in my loft due to poor ventilation. I currently have no vents airing the loft space.

I have had a a few roofers round to give a quote for resolving the issue and one has given 2 options both of which have come out around a similar price

Option 1: Tile Ventilation

To supply and fit 6 No tile ventilation units, 3 No to each side of the roof.
Cut the existing felt and make good as required to reseal.
Fit new vents through the underfelt, and into the roof space.

FOR THE SUM OF £398.00 + VAT



Option 2: Over Facia Ventilation Unit

To lift back the first course of roof tiles, lift up underfelt.
Cut top of fascia boards.

Supply and fit a new continuous over fascia ventilation system.

Secure to the existing fascia.
Supply and fit new refurbishment trays, and dress under the felt, and into the guttering.
Replace roof tiles.

FOR THE SUM OF £362.00 + VAT


Looking to get opinions on what are the pro's and con's of both options as I am not sure which to go for

System

normally you would have both, not sure which would be best, I'd probably opt for the high level ones as that's the most likely place humid air would be sitting

Furts

Option 1 will only work if you currently have an air flow from your eaves to push the flow through the tile vents.

Option 2 is better because you are getting a continuous ventilation all along both sides, and flowing across the roof void.

The ideal solution, if budget permits, is option 2 plus ridge vents in lieu of tile vents. These could be more fiddly to install, but it would appear you would only be paying for three instead of six tile vents.

docmatt

Option 2 plus 2 vents will be fine. Try and improve on cutting down sources of condensation in your house

Furts

docmatt wrote: »

Option 2 plus 2 vents will be fine. Try and improve on cutting down sources of condensation in your house

2 vents might be OK but the length of the ridge is needed in order to know. As the roofing quote says 3 per side my response was in line with this judgement.

You may find ridge vents are too ugly or too expensive and go with the tile vents and option 2.