Damp on internal garage walls

Eldi_Dos

I would think it is best not to put anything on the walls.

If OP could post some photos of paved area and rear,side and front of garage they will get good advice on how to fix the problem,and any information about the base the paved area is sitting on would help.

FreeBear

Bendy_House said: What do folk think would be the best approach? I'm wondering if there's a way of back-filling it with gravel to prevent the sides collapsing, whilst making sure there'll be no further dampages.

I have a gravel filled trench )French Drain) dug between slabs & house - The compacted hardcore under the slabs is pretty solid and the gravel limits any potential for collapse.

If there is any doubt as to how solid the sub base is under the tiles, line the side of the trench with concrete gravel boards. Set flush with the top of the tiles, the boards will help to reduce any risk of damage to the edge of the tiles.

Danger_Mouse

Eldi_Dos said:

I would think it is best not to put anything on the walls.

If OP could post some photos of paved area and rear,side and front of garage they will get good advice on how to fix the problem,and any information about the base the paved area is sitting on would help.

Here are some pics, the internal walls has those damp patches in various spots along the base of the wall. The paving is on compacted hardcore

Bendy_House

I do love the way they left a neatly cut row of slab edging, so no angle grinder required :-)

Danger_Mouse

Bendy_House said:

I do love the way they left a neatly cut row of slab edging, so no angle grinder required :-)

Wish they hadnt bothered laying that bit in the first place lol! how would you get it off without an angle grinder?

Eldi_Dos

Danger_Mouse said:

Bendy_House said:

I do love the way they left a neatly cut row of slab edging, so no angle grinder required :-)

Wish they hadnt bothered laying that bit in the first place lol! how would you get it off without an angle grinder?

To preserve the edge on the paving you will be leaving in place, I would suggest raking the mortar out with a patio knife or something similar and get as much out as possible.
Then the bits you want to remove start at end and try and lift with claw of claw hammer or failing that with hammer and chisel.
Once you have got them out the way you can decide if the bedding for paving will act as drain or whether you need to go deeper and use a more suitable gravel for drainage.
Could you post photo of outside of side of garage, might help with advice on drainage.

Danger_Mouse

Eldi_Dos said:

Danger_Mouse said:

Bendy_House said:

I do love the way they left a neatly cut row of slab edging, so no angle grinder required :-)

Wish they hadnt bothered laying that bit in the first place lol! how would you get it off without an angle grinder?

To preserve the edge on the paving you will be leaving in place, I would suggest raking the mortar out with a patio knife or something similar and get as much out as possible.
Then the bits you want to remove start at end and try and lift with claw of claw hammer or failing that with hammer and chisel.
Once you have got them out the way you can decide if the bedding for paving will act as drain or whether you need to go deeper and use a more suitable gravel for drainage.
Could you post photo of outside of side of garage, might help with advice on drainage.

Hey, hopefully this is clear enough

The builders also said the landscapers shouldnt have just put the flower bed right up the wall but we've not had any issues with damp on the side, just the back wall

FreeBear

Danger_Mouse said: The builders also said the landscapers shouldnt have just put the flower bed right up the wall but we've not had any issues with damp on the side, just the back wall

The builders are right, and the landscapers should have known better - If the work is fairly recent, get them back to undertake remedial work at no cost to you.

Bendy_House

FreeBear said:

The builders are right, and the landscapers should have known better - If the work is fairly recent, get them back to undertake remedial work at no cost to you.

I agree - it was done incorrectly, they should have known better (and this will ensure they do in future). And - if this had been a house and not a garage - they could have been in line for a significant remedial bill.

Other than that, it looks like a nice job :-)

Danger_Mouse

Bendy_House said:

FreeBear said:

The builders are right, and the landscapers should have known better - If the work is fairly recent, get them back to undertake remedial work at no cost to you.

I agree - it was done incorrectly, they should have known better (and this will ensure they do in future). And - if this had been a house and not a garage - they could have been in line for a significant remedial bill.

Other than that, it looks like a nice job :-)

Thanks for the advice guys. We're going to contact the landscapers and see what they say. Garden was done in October last year but only started noticing the damp issues the past couple of months as we cleared loads of crap out of the garage.

In terms of the side with the flower bed, is the solution the same as the back end of the garage i.e. dig a bit of a trench and fill with gravel?