ᐅ Is a drip edge / eaves flashing mandatory?

Created on: 12 Feb 2024 20:41
M
Moerfel22
Good evening,

We had our prefabricated house installed last week.
It has a gable roof with a 38° pitch, and during today’s inspection, we noticed that no eaves flashing or drip edge was installed.
The water that runs off beneath the roof tiles flows along the underlay down to the fascia board.
As a result, the fascia board is already at risk of weather damage.
The installers say this is standard procedure for the house manufacturer and that the eaves flashing would have had to be specially ordered.

Is anyone aware of a regulation or guideline that requires eaves flashing?
Because, according to my roofer acquaintance, installing eaves flashing is standard practice, but I cannot provide any written proof.

Best regards,
Marvin
W
WilderSueden
13 Feb 2024 13:08
Execution according to the recognized rules of technology does not need to be explicitly mentioned. It is implicitly always included.
M
Moerfel22
13 Feb 2024 20:54
I will discuss it with the site manager. Although I don’t have the relevant standard for it, he will have to explain why it was executed that way.

I have just looked it up, and it should be in the "Information sheet for underroofs" or under "Metalwork for roofers," both of which unfortunately require a purchase.
B
Bauherr2024
18 Feb 2024 18:07
I am also interested in this question. However, I could only find references online to the "Guideline for Roof Underlays, Secondary Roof Coverings, and Breathable Membranes" by the ZVDH, which is not freely available.

@Moerfel22: Has the site manager made any comments yet?
M
Moerfel22
18 Feb 2024 18:38
Bauherr2024 schrieb:

@Moerfel22: Has the site manager commented yet?

He sent us an excerpt from the specification sheet, where in the fine print it states that the work will be carried out according to the proven system of the house manufacturer, which has been tested for functionality by TÜV Rheinland.
This means you’re in the clear and can save the cost of the expensive eaves flashing.

What laypeople simply don’t know is that this type of execution is no longer state of the art, and of course no one points that out to you.
N
nordanney
18 Feb 2024 20:40
Moerfel22 schrieb:

What a layperson simply does not know is that this method is no longer state of the art.
Omitting the drip edge is definitely still up to date when done correctly. It remains the current standard practice and is not mandatory anywhere.
B
Bauherr2024
18 Feb 2024 20:49
nordanney schrieb:

Using no drip edge is indeed still considered up-to-date when done correctly. It remains the current state of the art and is not mandatory anywhere.

As I mentioned, I don’t have access to the "Information sheet for underroofs, underlayments, and underlay membranes," but there are some quotes from the sheet online that make it sound as if a drip edge would be required. What does a proper installation without a drip edge look like?
Moerfel22 schrieb:

He sent us an excerpt from the sample specification where, in the fine print, it states that it will be installed according to the manufacturer’s proven system, which has been tested by TÜV Rheinland for functionality.
That means you’re in the clear and can avoid the costly drip edge.

What a layperson simply doesn’t realize is that this type of installation is no longer up to date, and of course nobody points that out to you.

Were you at least able to review the expert report?