ᐅ Heavy rainwater entering through the roof eaves – roof renovation needed?
Created on: 12 Feb 2023 21:27
J
jessesmaria
Hello,
I had mentioned this before in another thread regarding price discussions, but now with a video:
Our roof has tiles on a slope of only 8 degrees and no special substructure, which is why it supposedly needs to be replaced before major damage occurs, even though it is only 17 years old (we bought the house a few years ago, so we didn’t cause the issue ourselves). This is what a distant relative who is a professional believes, based on a remote assessment. First, he says a roof of this construction is doomed anyway, and second, rain should never penetrate the roof, as can be seen in the following video we took during heavy rain (apparently links are not allowed here, so this is all you need to add behind YouTube.com...):
YouTube... /shorts/g8-ZLzFxqb4
We have now received a quote of about €47,000 (about $47,000) for a new metal roof with new insulation. The roof area is roughly 11.5 * 6 = 69 square meters (about 743 square feet), it is an independent middle townhouse and relatively straightforward. A subsidy of 15% or 20% (with an energy consultant) is possible (so in effect about €40,000, or about $40,000). This seems like a very large investment considering no real damage has occurred yet and we don’t really understand how severe the problem shown in the video actually is. After all, water only penetrates “under” the eaves; the house itself is still undamaged. The mentioned distant relative, however, believes that over time a larger and ultimately much more expensive damage could develop unnoticed inside the roof. The company that provided the quote also visited in person, but apparently it is either not common practice or simply not possible to inspect the roof first before undertaking a full renovation?
What would you recommend – is the renovation necessary, or would it be enough to wait or perform a smaller intervention?
I had mentioned this before in another thread regarding price discussions, but now with a video:
Our roof has tiles on a slope of only 8 degrees and no special substructure, which is why it supposedly needs to be replaced before major damage occurs, even though it is only 17 years old (we bought the house a few years ago, so we didn’t cause the issue ourselves). This is what a distant relative who is a professional believes, based on a remote assessment. First, he says a roof of this construction is doomed anyway, and second, rain should never penetrate the roof, as can be seen in the following video we took during heavy rain (apparently links are not allowed here, so this is all you need to add behind YouTube.com...):
YouTube... /shorts/g8-ZLzFxqb4
We have now received a quote of about €47,000 (about $47,000) for a new metal roof with new insulation. The roof area is roughly 11.5 * 6 = 69 square meters (about 743 square feet), it is an independent middle townhouse and relatively straightforward. A subsidy of 15% or 20% (with an energy consultant) is possible (so in effect about €40,000, or about $40,000). This seems like a very large investment considering no real damage has occurred yet and we don’t really understand how severe the problem shown in the video actually is. After all, water only penetrates “under” the eaves; the house itself is still undamaged. The mentioned distant relative, however, believes that over time a larger and ultimately much more expensive damage could develop unnoticed inside the roof. The company that provided the quote also visited in person, but apparently it is either not common practice or simply not possible to inspect the roof first before undertaking a full renovation?
What would you recommend – is the renovation necessary, or would it be enough to wait or perform a smaller intervention?
B
Bausparfuchs14 Feb 2023 22:34The damage will probably be fixed before the expert even arrives. Why immediately call an expert, a lawyer, or file a claim for damages?
Call a roofer, explain the problem, and have it repaired. It will likely cost less than hiring an expert.
Based on the video, I would say the damage is to your gutter, not the roof itself. The gutter cannot handle the amount of water and pushes it back. When the gutter is full, water overflows onto the drip edges and back onto the roof, where it then leaks out.
What stands out is that the gutter is too long, and one downspout is no longer sufficient. The size of the gutter is too small. So, install a larger gutter along with a second downspout on the opposite side. That should fix the damage. A good roofing plumber can do this between breakfast and lunch.
A new roof will not solve this problem.
Call a roofer, explain the problem, and have it repaired. It will likely cost less than hiring an expert.
Based on the video, I would say the damage is to your gutter, not the roof itself. The gutter cannot handle the amount of water and pushes it back. When the gutter is full, water overflows onto the drip edges and back onto the roof, where it then leaks out.
What stands out is that the gutter is too long, and one downspout is no longer sufficient. The size of the gutter is too small. So, install a larger gutter along with a second downspout on the opposite side. That should fix the damage. A good roofing plumber can do this between breakfast and lunch.
A new roof will not solve this problem.
S
Simon-18921 Feb 2023 15:07Hello,
it is quite unusual that all the water is following a different path. Before you hire a roofer and/or an expert, first check the simple things. Is the gutter free of bird nests, leaves, or dead birds? If yes, how do the connections from the downspout to the drainage pipes look? Are any existing sand traps clogged? Have the drainage pipes inspected by a sewer cleaning company using a CCTV camera truck to see if blockages or plant roots might be causing the problem?
From below, it looks to me as if something is blocking the drains.
it is quite unusual that all the water is following a different path. Before you hire a roofer and/or an expert, first check the simple things. Is the gutter free of bird nests, leaves, or dead birds? If yes, how do the connections from the downspout to the drainage pipes look? Are any existing sand traps clogged? Have the drainage pipes inspected by a sewer cleaning company using a CCTV camera truck to see if blockages or plant roots might be causing the problem?
From below, it looks to me as if something is blocking the drains.
C
chand198621 Feb 2023 15:17Bausparfuchs schrieb:
The damage is probably fixed by the time the expert shows up. Why immediately call an expert, a lawyer, or file a damage claim?
Call a roofer, explain the problem, and have it repaired. It will probably cost less than the expert.
From the video, I would say the damage is to your gutter and not the roof itself. The gutter can’t handle the volume of water and pushes it back. When the gutter is full of water, it flows back over the eaves flashing onto the roof, where it then leaks out.
What stands out is that the gutter is too long and one downspout is not enough. The size of the gutter is too small. So you should install a larger gutter and a second downspout on the opposite side. That should fix the problem. A good roofing plumber can do that between breakfast and lunch.
A new roof will not solve the problem. +1
I have to agree here. If the underlay membrane was damaged, less water should penetrate during lighter rain. But it only leaks a lot during heavy rainfall, right?
This strongly suggests the gutter is overwhelmed by too much water/volume.
So check if the gutter is clear. If it is, first install a larger gutter with a bigger downspout. That would be advisable anyway, and if it fixes the problem right away, that’s a win.
Hello,
how do you arrive at an 8% slope? As far as I know, a tile roof covering is only possible/allowed from 10% slope. From the video, it looks like the water is already running under the tiles from above. How do I come to this conclusion? If the gutter overflows, the water should run out at the front of the gutter. This was the case for us when the downspouts were clogged with leaves.
how do you arrive at an 8% slope? As far as I know, a tile roof covering is only possible/allowed from 10% slope. From the video, it looks like the water is already running under the tiles from above. How do I come to this conclusion? If the gutter overflows, the water should run out at the front of the gutter. This was the case for us when the downspouts were clogged with leaves.
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