How do I brick up the hole the easiest way?

[Danne031]

Sounds good then

 

[savio]

Back to the topic.

Was my idea good or bad?
i.e.:

1. Put mortar against the grate with a few cm

2. Apply foam sealant

3. Put mortar a few cm furthest inside towards the room

4. Smooth the last bit nicely.

Then I'll go with that!

But since I think it might be a bit tricky to attach the first mortar to the grate, I thought I might put a painted wooden board at the grate's outer edge.
No problems with that, right? :O

 

[savio]

I've reconsidered (again).

First, I place a painted wooden board against the edge (the grid).
Then I fill the entire hole with foam sealant.
Finally, I simply place a cover plate in the kitchen that covers the hole, and then it shouldn't be a big deal if it's not completely even inside, right?

 

[Roary]

Do not put wood there, it will start to mold. Use something inorganic. Like a piece of black trash bag and duct tape. It won't be visible from the outside.

 

[AndersS]

As a tip, be careful with skimming because if you get too much in, it can certainly push out the grid even if you have put a layer of mortar in front.

 

[savio]

Do not put wood there, it will start to mold. Use something inorganic. Like a piece of black trash bag and duct tape. Won't be visible from the outside.

Ouch? I have now put up a painted wooden board there.
Will it start to mold?

I was planning to foam the rest but haven't started yet because the foam sealant was out of stock at the store, planning to start any day now.

Please don't tell me I have to take down the piece of wood and start over? :O

 

[Roary]

Ouch? I have now put up a painted wooden board there.
Will it start to mold?

I was planning to foam the rest but haven't started yet because the foam sealant was out of stock in the store, planning to start any day now.

Don't tell me I have to take down the wooden piece and start over? :O

Particleboard absorbs moisture. Since it's placed behind the grille, it won't get wet but it will probably start to mold sooner or later. If the smell doesn't come in, it doesn't really matter, so it's up to you

If you don't have much negative pressure in the apartment and make sure it's reasonably tight, it probably won't matter...

 

[savio]

Shavings absorb moisture. Since it's inside the grille, it won't get wet but it will probably start to mold sooner or later. If the smell doesn't come in, it doesn't really matter, so it's up to you

If you don't have much negative pressure in the apartment and make sure to get it reasonably airtight, it probably won't matter..

It's directly against the grille and since the grille is hollow, it will get wet :blushing:
But does it matter since I have foam sealant in between?

Do you mean it's better to put some plastic from a garbage bag?

What is meant by negative pressure in the apartment? Regarding ventilation, there is an exhaust vent + a carbon filter fan in the kitchen.

 

[Roary]

Underpressure = A lot of air is sucked out and less in. If it becomes airtight then it doesn't matter, and it should become so with foam. If it starts to smell musty in the kitchen, you'll know where it's coming from...

I would have used something inorganic just to be on the safe side, but I am sometimes overly cautious.