How To Remove Dampness From Walls


How To Remove Dampness From Walls


Dampness


What is dampness?
Structural dampness is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or construction from within the structure. A high proportion of damp problems in buildings are caused by ambient climate dependent factors of condensation and rain penetration. Capillary penetration of fluid from the ground up through concrete or masonry is known as Rising Damp and is governed by the shape and porosity of the construction materials through which this evaporation limited capillary penetration takes place Structural damp, regardless of the mechanisms through which it takes place, is exacerbated by higher levels of humidity.


Causes of dampness in buildings              
1.    Rain penetration
2.    Level of site
3.    Drain ability of soil  
4.    Climate condition
5.    Defective orientation of building
6.    Moisture entrapped during construction
7.    Defective construction e.g. joints


Dampness

Effects of dampness in buildings:    
1.    Causes rotting of wood.
2.    Causes corrosion of metallic fixtures.
3.    Deteriorate electric installations.
4.    Deteriorate carpet & furniture’s.
5.    Causes spots on the floors and walls.
6.    Causes petting off and removal of plaster.
7.    Causes bleaching and blistering of paints.
8.    Causes effloresce.
9.    Dangerous for the health of occupants (Asthma)  to growth of microbes such as moulds, fungi and bacteria
10.  Reduce the life of structures



How to remove Dampness(Seelan)?
Every room should be dry and well ventilated to keep the rising problem of dampness at bay. There are varied methods to treat the problem. Most popular ways are listed below, have a look:
·         Damp Proofing: It is essential to keep the foundation dry to avoid dampness. So a continuous layer of waterproof mortar can be installed to make a proper DPC. The damp proof course can be installed by removing a line of bricks near the floor level and by inserting the waterproof mortar.
·         Avoid leakage: Make sure the rainwater pipes are tightly fit. Besides, all the sanitary and water supply fittings must be tight. In addition to this, rainwater should not penetrate any of the joint of the structure. If there is any space between ceiling and roof, then install proper ventilation to the area.
·         Repair and re-plaster the surface: If there is an affected area in your house then use some waterproof plaster or cement mixture to repair the surface. Re-plaster process can be done with the help of delivery tubes, simply put the tubes near the walls and transfuse the liquid, the liquid will work as a membrane and a strong barrier against moisture and dampness.








Comments

Post a Comment

Popular posts from this blog

Methods of Estimation for Building Works

Image
Methods of Estimation for Building Works - Long Wall Short Wall Long wall and short wall method The estimation of building quantities like earth work, foundation concrete, brickwork in plinth and superstructure etc. can be worked out long wall short wall method and centerline method. Long wall and short wall method =  This is simple method and there are less chances of mistakes. In this method long wall and short wall are worked out separately. Long wall length out-to out = (centre to centre length + half breadth on one side + half breadth on the other side) Long wall length out-to out = (centre to centre length +one breadth) Q. Calculate the quantity of the following item (shown in fig) (a) Earthwork in excavation in foundation (b) Concrete in foundation (c) Brick work in foundation and plinth (d) Brickwork in superstructure Ans.   Calculation of quantities = No of wall × Length × Breadth × Height or Depth   Where         Length for Long wall = length of long wall centre t
Read more

sewage treatment plant

Image
INTRODUCTION Sewage -general considerations It is the technique of removing harmful impurities from wastewater and household waste waters, both runoff (effluents) and domestic. This process involves physical, chemical, and biological processes to remove all types of contaminants. Its objective is to zero liquid discharge and provide useful fresh water in the environment. The sewage water is often adversely contaminated with many toxic organic and inorganic compounds. sewage treatment plant (Project picture) Sewage can be defined as the wastewater that is collected form some area and then conveyed to some point of disposal. The liquid wastes will require treatment before they are discharged into the water body or otherwise disposed of without endangering the public health or causing offensive conditions. With the growth of population and the modern cities the conventional method of wastewater disposal has been replaced by the planed water-carried sewage system. E
Read more