How to seal holes in the roof after roof hood removal

[Bablos]

Hello everyone, first post here in 10 years.

I am going to move the kitchen location and relocate the roof vent for the kitchen fan to the new spot.
I plan to lay a piece of roofing felt with silicone/roofing compound and cover it with new tiles (and of course, repair the roof panel).

The roofing felt should be on top of the upper felt, so the slope won't protect when the silicone dries and cracks.

How else do you do it?
There are concrete tiles on the roof, 18-degree slope.

 

[tergo]

Normally, you should cut at the upper edge and tuck under the new roofing felt. Do not use silicone, but rather asphalt mastic or similar.

 

[Plupp 405730]

Hi everyone, first post here in 10 years.

I'm going to move the kitchen location and move the roof vent for the kitchen fan to the new spot.
I was planning to put a piece of roofing felt with silicone/roof sealant and cover it with new tiles (and of course fix the roof panel).

The roofing felt should be placed on top of the upper felt, so the slope won't protect when the silicone dries and cracks.

How else do you do it?
There are concrete tiles on the roof, 18-degree slope.

If you have rough planks under the felt, it should be repaired first, then the underlay felt, which you cut into the upper edge, may need some asphalt putty if you don't cut it correctly.
Then make sure the battens are good and put on the new tiles.
Done😊

 

[Bablos]

If you have råspont under the paper, it should be repaired first, then the underlay paper should be cut at the top; some asphalt putty might be needed if you don't cut it perfectly. Then make sure that the battens are good and place the new tiles. Done😊

Thank you, that sounds good. It's still the side edges that won't have any overlap when they come out at the bottom edge. Is it just to apply extra asphalt putty? I feel like I can't describe it correctly. So, when I slide the underlay paper down at the top edge, it's a wider paper than the hole, but as I understand it, it needs to come out on top of the bottom edge. Is that correct? And there you can't get any overlap on the sides.

 

[Plupp 405730]

Thanks, that sounds good.
It's still the side edges that won't have any overlap when they come out at the bottom. Should I just add extra asphalt sealant? I feel like I can't describe it correctly.
So when I slide the underlayment down from the top, it's wider paper than the hole, but as I understand it, it needs to come out on top of the bottom edge. Is that right? And there you can't get any overlap on the sides.

Yes, the paper you cut into the top edge should be a little wider than the hole, say 200mm on each side. Yes, apply a bit of sealant on the sides between the new and old.

 

[Hybro]

Or just leave the hood on, if water isn't getting in, and add a new hood to the new object.