Porch roof under balcony

[Sylvester]

I wonder what the regulations are regarding materials for the roof over a veranda, i.e., the floor under the balcony.

The issue is that my balcony is made with pressure-treated wood, while it stands on the veranda roof, which is only made with raw boards and underlayment paper. It feels very wrong to have only underlayment paper as the sole protection against rain and snow. Isn't there a requirement to have some kind of metal cladding on the roof?

 

[Sylvester]

No one has any idea how a properly constructed veranda roof/balcony floor should be done?

 

[snackan68]

It feels very wrong to only have underlayment as the sole protection against rain and snow. Isn't it necessary to have some kind of metal sheeting on the roof?

Hello there!

You are absolutely right, you should have metal sheeting on your porch roof/balcony floor. Now there's a risk that the roof decking will get moisture damaged.

// Snäckan

 

[styrman1]

Underlay felt is exactly what it sounds like, UNDERLAY felt.
Add a top layer felt or sheet metal.
It seems to be quite protected so a top layer felt will last a long time.

 

[Sylvester]

Thank you for the answers.

I am fully aware that there is no chance for the underlayment to be the only protection against the weather. The less thoughtful carpenter who installed the veranda and balcony has just slapped on the underlayment and thought everything was fine. Despite the fact that both the delivery and construction description state that there should be sheet metal as the surface layer, they have totally ignored this and only interpreted a drawing, sigh... >

 

[Ingenjören]

Since the construction description normally has higher status than drawings, it sounds like the carpenter has to redo and correct the work. Moreover, he can never claim professional execution if he uses underlay felt as a surface layer. How does he justify this in terms of warranty?

/The Engineer

 

[Sylvester]

Yes, the construction description and delivery description have higher status than the drawing according to my contract.

The independent carpenters I've spoken with all say, just like the Engineer, that this is hardly a satisfactory product that I can expect. Hardly professional...