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Wet Building Walls - Properties - Nairaland

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Wet Building Walls by patrick2015: 5:36pm On Jun 07, 2018
I've noticed with displeasure how properties fade away and loss value as a result of dampness. This should have been the topic of this thread but I chose this other for easy reach. Rising dampness is no doubt caused by water in the ground that soaks into our blocks and rises especially in the absence of a damp proof course to stop it and because our Niger blocks and mortar(plaster) are made of Portland(Dangote cement), the soaked water in the walls rises up and destroys our investments gradually. The good news is it can be fixed. Don't just repaint the wall, TREAT IT. If you must regain your walls, you must attack the root cause(s) of rising dampness. If your walls are in this category, be glad and rejoice for solution is here. Come over and let's talk it out here. I hope this thread solves water issues in our homes
Re: Wet Building Walls by patrick2015: 5:42pm On Jun 08, 2018
Like I earlier said this thread is basically about rising dampness.
WHAT'S RISING DAMPNESS
Rising damp is moisture present in your walls as a result of water in the ground underneath or next to your walls rising up through the fabric of the wall, whether it be brick, block or stone. The water travels upwards through the wall as a result of capillary action (where water is sucked through a small opening such as a tube or hole) through the tiny holes in the brick or stone. The water stops rising at a height where gravity counteracts the upwards force of the capillary action. This ‘rising damp’ usually reaches a maximum height of 1.2m, but the effects of the damp, such as salt deposits, may be seen higher up due to the presence of non-breathing wall coverings such as vinyl wallpaper and non breathing plasters, renders and paints.

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Re: Wet Building Walls by patrick2015: 5:49pm On Jun 08, 2018
Signs of Rising Dampness
Typical signs of rising damp rather than other damp problems are a ‘tide line’ of yellowish or brownish staining or blown plaster in the lower area of your wall above your skirting board. You also might have damp or rotting skirting boards or flooring. You may see white, fluffy deposits in your plaster – these are ‘salts’ which the damp has washed out of your bricks and into your plaster. Black spots of mould may also appear on on the damp areas of your wall. If your wall shows any of these signs in the pictures, your wall could be suffering from rising dampness.

Re: Wet Building Walls by patrick2015: 5:59pm On Jun 08, 2018
What causes rising dampness
Rising damp problems often occur as a result of not having a Damp Proof Course installed or having a Damp Proof Course that is faulty due to age or inadequate installation. A Damp Proof Course is a waterproof layer in your wall (or both walls if you have a cavity wall), ideally about six inches from the outside ground on your external wall and under your raised timber floor or near your concrete floor on your internal wall (so both DPC’s are on the same level). This layer repels water – a variety of different DPC’s are available and will be discussed in this project.

A damp proof course will stop rising damp from rising
A damp proof course will stop rising damp from rising up into your walls – it is a waterproof layer that sits between your bricks across your house
You may be experiencing rising damp even if your Damp Proof Course is functioning well –in this case the DPC may be breached – that is, there may be something attached to your walls that is allowing water to travel around the Damp Proof Course and continue moving upwards. It may be that there is an area of ground next to your external wall that is higher than your DPC, or there is an outside structure (such as steps) which is attached above the DPC, allowing water to travel up through this and cross to the wall over the DPC.

There are several other ways your DPC might be bridged. Your internal plaster may be directly connected to a solid floor at the bottom on your internal wall. Your cavity wall may also have debris inside of it, whether it is leftover building materials or something else. If this debris reaches above the DPC’s then this can create another bridge for moisture to travel from the ground over the DPC and up your wall as rising damp.

A bridged cavity void area can cause rising damp to occur
Rising damp can happen as a result of debris present in your cavity wall bridging the Damp Proof Course and giving water a way to travel around the DPC and up into your walls
Remember that your damp problem may not necessarily be caused by rising damp – there may be another source of water that you are not aware of. A telltale sign that your damp is not rising damp is if the damp patches are higher up than 1 metre on your wall and are unevenly distributed, in which case you may be suffering from penetrating dampness instead.
Uneven patches higher up may mean you have penetrating dampness instead

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Re: Wet Building Walls by wasamtech: 5:37am On Jun 12, 2018
Following with keen interest. Love to work with you. Pls send your details to wasamtech@gmail.com
Re: Wet Building Walls by biobuk1(m): 9:34am On Nov 20, 2018
Nice write-up Patrick2015 but you have not concluded it-the solutions?
Re: Wet Building Walls by Asquare84(m): 11:29am On Nov 20, 2018
It really a problem in my house what can I do to remedy the situation as this has caused me embarrassment

Re: Wet Building Walls by LKO(m): 11:30am On Apr 06, 2019
patrick2015:
Signs of Rising Dampness
Typical signs of rising damp rather than other damp problems are a ‘tide line’ of yellowish or brownish staining or blown plaster in the lower area of your wall above your skirting board. You also might have damp or rotting skirting boards or flooring. You may see white, fluffy deposits in your plaster – these are ‘salts’ which the damp has washed out of your bricks and into your plaster. Black spots of mould may also appear on on the damp areas of your wall. If your wall shows any of these signs in the pictures, your wall could be suffering from rising dampness.


What then is the solution?
Re: Wet Building Walls by Hakeeb123: 7:07am On Sep 22, 2020
do you have a solution?
patrick2015:
I've noticed with displeasure how properties fade away and loss value as a result of dampness. This should have been the topic of this thread but I chose this other for easy reach. Rising dampness is no doubt caused by water in the ground that soaks into our blocks and rises especially in the absence of a damp proof course to stop it and because our Niger blocks and mortar(plaster) are made of Portland(Dangote cement), the soaked water in the walls rises up and destroys our investments gradually. The good news is it can be fixed. Don't just repaint the wall, TREAT IT. If you must regain your walls, you must attack the root cause(s) of rising dampness. If your walls are in this category, be glad and rejoice for solution is here. Come over and let's talk it out here. I hope this thread solves water issues in our homes
Re: Wet Building Walls by olatunyemi(m): 5:12pm On Aug 30, 2021
Hakeeb123:
do you have a solution?

What's the solution

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