Ridge sealing

[Kjell61]

If one does not have a sub-roof of tongue-and-groove boards and paper, but only masonite under the concrete tiles, what type of ridge sealing should be used?

 

[Liteavvarje]

Depends on the brand of brick or sheet metal

 

[Kjell61]

Depends on the brand of brick or sheet metal

Betongpannor

 

[RoBo]

Then it is probably the case that the slope is too small, maybe for the whole roof, so the water blows in under many tiles, but mostly at the top. There is probably only one thing to do: disassemble the overlying sheet metal and seal it with a ridge band.

It is for concrete tiles and lays on a band; if your sheet metal is tight against the tiles, it won't fit well, so you'll have to cut off the middle part so only the curved section remains. Place them about 5 - 10 cm in under the metal sheet, there should be about 5 cm left on the tile at the top edge and glue them with PL 200 to the bottom.

This will stop water that wants to blow in underneath.

It's a lot of work but the easiest, you don't need to tear down or redo anything.
It looks like this

????

 

[Liteavvarje]

Was something wrong here, do you have isolated ceiling under

 

[Kjell61]

The first ceiling is masonite, as I wrote in the introduction.

 

[Tvapac]

Is it a kind of roof where you skip the battens but the sheets still bow in? An acquaintance has a roof constructed like that, and there's regular ridge band there. I've only used board sheathing, but I thought Benders was good anyway. Not a great answer but you haven't received many others, so maybe it's something