why roofs in Sydney leak only in heavy rain
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- Опубликовано: 1 янв 2020
- Some roofs in Sydney leak in heavy rain (and not in light rain) and there is usually only one reason why this happens.
• Water flow exceeds the capacity of the roof elements.
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In my experience, roof leaks can be separated into 3 categories:
1. The roof leaks everytime it rains;
2. The roof only leaks when it rains heavy;
3. Only prolonged rain makes the roof leak.
On this post, I will examine the second category.
Leaks on tiled roofs
The most common reasons why tiled roofs leak during heavy rain are:
1. No sarking under the roof tiles. If you go into your ceiling cavity and you can see the underside of the roof tiles - then you have no sarking. Stay there during heavy rain and you will feel a fine mist coming through the gaps between the tiles. Usually, this is not a big problem because it is not enough moisture to wet the ceiling. And there are no ceiling stains.
2. Low pitched roof tiles. Roof tiles start to do poorly when the roof pitch gets less than 20 degrees. Manufacturers of roof tiles have limits on roof pitches because of this. Yet, many roofers ignore these for the sake of ‘looks’.
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Very thorough and informative. Thank-you. Confirms my suspicions as to why we recently developed a leak.... heavy rain-low pitch-torn sarking/flashing. Much appreciated.
Great video. Very informative. Thank you.
Unbelievably useful video. Can’t thank you enough for your generous sharing of your trade knowledge.
Thanks for taking the time to explain it such detail!
Brilliant. Thanks for such detailed consideration of the issues!
This video succeeded in getting my wife in the mood for a snuggle
Cheers
umm okay....not sure how but good on you!
Wow! Must get my wife up here too to watch this! Cheers
You are an absolute legend!
my roof only leaks when it rains lightly, not heavy :) as it's a very low pitch and the sheets haven't been trimmed on each overlap, it's likely creeping back under the sheets
Great video!! Really helped!
I had 4 people came in to inpsect/Fix but couldn't figure out the problem but it is explained in the video.
Very informative video. Thank you.
Excellent video (apart from the weird psychedelic rotations etc. which make it hard to "orient" where the viewpoint is) . Also, the rain in Sydney appears to be the same type as in the UK - even though it's upside down! Blow me!
I have a Lot of Moss on The roof and a leak.
How top Clean this? Greets :)
Thank you, thank you!
When you get multiple roofers who come and say they know the problem but it never works! I’ve had multiple people come yet roof still leaking! Damn frustrating. I bet they never considered the water channels beneath the tiles for example.
Good Vid thanks mate
Thanks!!
I have the same problem but only leak on the first floor, not the second floor. Any advice?
Hi there - just wondering when you will be uploading the video or blog post regarding the "leaks only during prolonged heavy rain" ?
Thank u
thanks, mine is the opposite, it leaks only when is rains very lightly, or if its foggy
U sound a LOT like the guy from dragonforce lol. Not just the accent but the tonality and the timing you both use are almost identical. Maybe I'm just American
roof leaks it can bad
Good video. In a nutshell, tiled roofs in sydney are fucking shit. Metal roofs are great.
Not just in Sydney, but my tiles might be from there ;)
My extension started flooding through the fucking ceiling!!!!!! The stupid builder couldn't even build a proper roof 😠😵, this has happened to my neighbour and we have the same roof and the same builder extended our house!