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how do i: (damp outside wall to bathroom how to;;;;;

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how do i: (damp outside wall to bathroom how to;;;;;
11 October 2009, 0:51 AM
-  Edited by pinklasies54 11 October 2009, 0:53 AM
pinklasies54
Joined 5 Jan 2007
27 posts

hi all how do i go about replacing plaster on a bathroom wall which is in basement, brickwork as outside wall.
wall is slightly damp in places but not dripping wet
tiles were bulging so took them of then a bulge in plaster=
WALL HAD BLOWN so took that of
need to fix this as tenants live there.
have attached a picture.
what do i put on bricks first old wall house is Victorian??????????????
then a waterproof plaster then tile back?
advice appreciated please
the picture is of a section .
the area is along side of bath and less than 1 metre tall


how do i: (damp outside wall to bathroom how to;;;;;
11 October 2009, 12:44 PM
LoneRanger
Joined 24 Sep 2009
22 posts

Hi, As with all problems of damp you need to ascertain the cause of the Damp and eliminate it.
It might be that the cause was a failure of the tiles to protect the wall,(best case scenario) if the wall dries out then you will know that this was the cause, if not then water is either penatrating from the outer wall (check the pointing) or its rising damp (bigger problem). when you have solved the damp problem, apply Bonding (as per the instructions) then re-plaster,re-tile.
Hope this helps !

how do i: (damp outside wall to bathroom how to;;;;;
12 October 2009, 4:18 PM
LoneRanger
Joined 24 Sep 2009
22 posts

Looking again at the picture, I would say that the wall got damp because the tiles/grout failed ?, if this is the case, dry the wall using a heater if ness-.
Apply "bonding" to the wall, leaving a good key,I woulden't replaster but if you wish to, use "multi finish" retile with water proof adhesive and grout. dont use fix and grout !! use seperate adhesive and grout, I much prefer the powder type that you can mix to suit the job

Let me know how you get on


how do i: (damp outside wall to bathroom how to;;;;;
12 October 2009, 6:01 PM
pinklasies54
Joined 5 Jan 2007
27 posts

Hi, i have been digging outside house the SAID WALL TODAY AS it is shingle for at least 18"
there is 1 brick missing?? to outside wall of house?
i think water has come from outside not inside.
As this bath hasnt realy been used for 2 years .
only the separate shower further along the room.


this is below ground level this area,

where tiles have come away etc


how do i: (damp outside wall to bathroom how to;;;;;
12 October 2009, 6:05 PM
pinklasies54
Joined 5 Jan 2007
27 posts

shall i put a layer of bitumen paint first to the BRICKS
WHEN that dries
then mortar?
as its quite away in to get it near enough level to put tiles back on
at least 1"
thanks


how do i: (damp outside wall to bathroom how to;;;;;
12 October 2009, 6:09 PM
LoneRanger
Joined 24 Sep 2009
22 posts

Looks like you've found the cause then !, so just replace the missing brick, dry the wall out and procede as I have already said

All the best


how do i: (damp outside wall to bathroom how to;;;;;
12 October 2009, 6:13 PM
LoneRanger
Joined 24 Sep 2009
22 posts

NO, just by a bag of bonding, apply as per, leaving a good key and replace tiles as said

how do i: (damp outside wall to bathroom how to;;;;;
21 October 2009, 0:21 AM
Tom
Joined 26 Jun 2009
1 posts

Hi there i believe that i may be able to help.
There is a product that i made by an American firm call Zinsser. They make a paint called WATER TITE. It is designed for this purpose and it used alot in pubs in their cellars as they are prone to damp. The only down fall is that it is expensive. Hope this helps.

how do i: (damp outside wall to bathroom how to;;;;;
21 October 2009, 7:47 PM
LoneRanger
Joined 24 Sep 2009
22 posts

Coating the walls will not solve the problem of Damp, it only displaces it.
And when the wall has tiling to it,the only thing that you want between the wall and the tiles is the adhesive !

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