Plaster in flood prone home

Question

We're about to start putting our back home together after a minor flood and I was wondering if there are plaster treatments that deal with water/excess moisture better than normal plaster?

Russell · Answer

Lime render can also deal with disspesing water / moisture as it is breatherble ,there fore it letts more moister disspers as cement render does not ,it

Tony · Answer

It depends how bad the water ingress is. If the water has made contact with the walls and had any long duration of contact with it and made them sodden the water will have done damage to the bond of the plaster to the surface its stuck to. 

Again depending on how bad the damage is you may need to rip out the walls or the bottom half of the walls and apply a tanking slurry or a salt neutraliser if there is effervescence(salt deposits) coming out brick work as any gypsum applied product will bring this back to the surface.

The repair of the wall depends entirely on what type of substrate it is. Get some de humidifiers on in your home to get the moisture out, that will help with further repairs.

Contact a damp proofing specialist to see if he can steer you any more in a right direction?

If its the ceilings that are damaged they will probably be best off ripped out. And re boarded, ensuring you take a look at the joist to ensure they are not sodden and rotted. 

Best of luck.

Tony

Louis · Answer

Hi , more than likely if water got to the plastered walls they would have to be hacked back to brick one metre high left to dry with a dimenifier then apply two coats of black jack to seal walls then render with sand and cement, once dry two coats of  plaster ready for decoration. Hope this helps

Lee · Answer

Not that I know of, ma be a acrylic paint to stop the moisture moisture

Thomas · Answer

No so much different plasters but there are different backgrounds that help eg:bonding

Karl · Answer

Hi, your question does not give enough information for a suitable solution to your problem. Consider the following: 

When you say flood, do you refer to leaks, or clumsy spillages after a good night out (or in) etc, or flooding following heavy rainfall, and flashy river, or other watercourse passing through doorways/walls/floors of your home. 

Consider the building fabric of your home: Is it of traditional solid wall construction (consisting of stone, brick or a combination of both); a modern house of cavity wall construction (consisting of brick, block, timber, or combination of two of such. Is it of a non-standard construction, such as a 'no fines' aka 'Wimpey' - prefabricated concrete house. The solution to your problem will (and should) vary for each type of construction.

Is there a way of preventing water from entering your property? such as improving the permeability and/or drainage of the land immediately around your home. This would usually be a good place to start, and is often (but not always) the most simple, effective and economical.

Sorry about the long read, but I hope it helps you to make an informed decision for your course of action.

Kind regards,

Ryan · Answer

You should use moisture resistant plasterboards worth the extra money you pay for them.

‪mohammad · Answer

Removing old grout and cleaning.  Examine the place of water leakage, fix it, and isolate the walls with excellent insulation materials, after which you put the new plaster

Lee · Answer

Renovating plaster, or tanking slurry topped with sand and cement.

Calin · Answer

Hi 
remove all damage texture to brick and let to dry and apply 
lime render 
and renovate plaster

Plaster in flood prone home

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