ᐅ Is a drip edge / eaves flashing mandatory?

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

Moerfel22 schrieb:

The installers say that this is standard practice for the house manufacturer and that the drip edge should have been included in the specifications.

This should be stated in your scope of work.

They don’t mention drip edge flashing at all, and the question is also whether there is a guideline that definitively requires something like this.

Water accumulating on a board cannot be considered state of the art. Either the breathable membrane is directed into the gutter, or it must be able to drain beneath the gutter.

Moerfel22 schrieb:

Is anyone aware of a regulation or technical guideline requiring a drip edge?
Because, according to my roofer’s knowledge, using a drip edge is standard practice, but I cannot provide any written documentation.

To my knowledge, it is standard practice. However, it is also accepted practice to omit it, provided that safe drainage of rainwater is ensured. This should be specified in the standards for metalwork in roofing.

Moerfel22 schrieb:

They don’t mention the drip edge at all.

The fact that it’s not mentioned could indicate it’s not included. The construction specification lists the items that are included.

Moerfel22 schrieb:

Is there a guideline that definitely requires something like this?

Our garage was also delivered without a drip edge. We missed the upgrade. Now we’re the ones with the dark streaks on the garage. But it’s only a garage…