OFVs are great in theory however, I have become not a fan as I have an issue where I have a dead air gap behind them. So air is being sucked in but just hanging out behind the vent and very little going up into the loft. From a previous issue, I also have circular soffit baffles dotted around...
What would cause a dead air space behind an over fascia vent? Eaves support tray + roll ventilator trays nailed to rafters in place as well but most of the air hangs out down at the bottom of the eaves just behind the over fascias. Have some circular soffits dotted around as well from a...
Can get photos. What is the best way to take them? I have a flat roof extension that I can easily get up.
Leaf blower is a great idea tbh (shame I don't have one...perhaps an excuse to get one?!) When we had the wind on the weekend, very, very, very little was actually coming through into the...
Long story short, after a disaster roof job last year which led to insane humidity and airflow problems in the house, finally found someone who installed over fascia vents in my roofspace. At the time, it brought my house to operating around 80% correctly but he had found a lot of things...
Yes - previous owners filled the cavities but as stated above, the issue was indeed the roof despite what I think most people thought but I was absolutely sure of.
So. Just a final update in case anyone is in a similar boat as there isn't much info online about this. My issue has pretty much been sorted by having a different roofer (who has found some problems with the original job) put 25mm over fascia vents on. It has allowed enough airflow to come up...
I'm seriously wondering if I have the same membrane. I can't tell but I know it has the blue ontop. I've had nothing but problems since a new roof. Installing tile vents has helped a bit but I think they are installed far too low for the dry ridge to work properly and so the guys are...
Separately the small extension the people before me did has always had poor airflow. And after really inspecting overall ventilation yesterday, I wouldn't be surprised if it needs some extra help at some point and am looking at various options - I know a dMEV may be a good and cheap option but...
So another update and touches upon some of the further posts:
Had someone else around who said that they didn't think I had enough exhaust. The dry ridge in theory should be enough but clearly there is a problem. They ended up fitting a total of 6 tile vents yesterday and I immediately felt a...
My brother has fallen off a few roofs and I don't like being at height like that so not for me! They do roofs via ladders back home as standard.
I agree with that last bit and would extend to a lot of trades. I'm finding you have to know the detail to direct.
I have concrete subfloors on the ground floor of which i know there is moisture in at least one section. But it isn't enough to be causing damp furnishings by far - only condensation build up on the windows if it gets cold. The house seems to be fine as long as you don't breathe or do anything...
Same here TNDU. It's crazy how much I've learned in the last month and a bit and I am in the same county as you so know your situation I've got someone else coming to look at my roof this week after a lot of problems with a new roof