Schedule a Call with Our Designer Team
Damp proofing, or damp-proof construction, is a construction technique that aims at walls and floors to prevent moisture from passing into the interior spaces. It is generally applied at basement levels, which restricts the movement of moisture through walls and floors.
Generally, damp proofing is required in areas where a highwater table or other severe soil-water conditions are known to exist. In areas without high soil hydrostatic pressure, damp proofing used in conjunction with proper drainage and lawn grading is sufficient and provides long-lasting protection.
Usually, a coating that is either sprayed on or rolled onto the outside of the wall achieves damp proofing. Rising damp, which occurs when water from the earth seeps into the foundation, is shielded by a damp proof course. When added to the concrete mixture, damp proofing can also be crucial in making the concrete itself water resistant.
Why is damp proofing important?
Mould, mildew, and bacteria growth in wet, damp walls, floors, or ceilings are definite triggers for people suffering from asthma, bronchitis, or other lung and breathing issues. Damp proofing ensures that your walls resist this moisture hazard so that your family can stay safe and healthy, breathing freely. When condensation builds up inside your walls, or water is allowed to sit without sufficient ventilation, mildew and bacteria begin to grow. Damp proofing can help eliminate this problem.
It keeps walls strong
Dampness can affect walls by seeping into the walls, which can further destroy wall paint, furniture, and ceilings. Water can gradually affect the strength of a building structure, thus damp proofing is important to keep the structure strong and long-lasting.
The difference between damp-proofing and waterproofing
Damp proofing is just a coating that is either sprayed on or hand applied to the outside of the wall. On the other hand, waterproofing is the treatment of the surface to prevent the passage of liquid water in the presence of hydrostatic pressure.
Methods of damp proofing
A water repellent material or damp proof course(D.P.C.) is introduced in between the source of dampness and the part of the building adjacent to it. The damp proofing course may consist of flexible materials such as bitumen, mastic asphalt, bituminous felts, plastic or polythene sheets, metal sheets, or cement concrete. Damp proofing courses may be provided either horizontally or vertically on floors, walls, etc. Provision of a damp-proofing course in the basement is normally termed as “tanking”.
In this type of damp proofing, certain materials are mixed with concrete. Compounds made from chalk, talc, and fuller’s earth may fill the voids of concrete under the mechanical action principle. Alkaline silicates, aluminium sulfate, calcium chlorides, and other compounds react chemically with concrete to produce water-proof concrete. Compounds like soap, petroleum, oils, fatty acid compounds such as stearates of calcium, sodium, ammonia, etc. work on water repulsion. Commercially available compounds like Publo, Permo, and Silka, etc. are mixed with concrete for damp proofing.
Cavity wall construction is an effective method of damp prevention. In this method, the main wall of a building is shielded by an outer skin wall, leaving a cavity between the two. The cavity prevents the moisture from travelling from the outer to the inner wall.
This method consists of forcing cement grout under pressure into cracks, voids, fissures, and so on present in the structural components of the building or in the ground. Thus, the structural components and the foundations, which are liable to moisture penetration, are consolidated and are thus made water penetration-resistant. This method is quite effective in controlling the seepage of raised ground water through the foundation.
Moisture finds its way through the pores of material used in finishing. In order to check the entry of the moisture into the pores, they must be filled up. In the surface treatment method, a layer of water repellent substances or compounds is applied on these surfaces through which moisture enters. The use of water repellent metallic soaps such as calcium and aluminium oleates and stearates is much more effective against rain water penetration.
In this method of damp proofing, an impervious layer of rich cement mortar is deposited under pressure over the exposed surfaces for water proofing or over pipes, cisterns, etc. for resisting the water pressure. The operation is carried out by the use of a machine known as a “cement gun.
The cement gun consists of a machine having arrangements for mixing materials and a compressor for forcing the mixture under pressure through a 50 mm dia. flexible hose pipe. The hose pipe has a nozzle at its free end to which water is supplied under pressure through a separate connection.
Materials used for damp proofing
Furthermore, damp proofing can save you from a plot of repair work in the future, removing the tension of yearly renovation. As it is believed “prevention is better than cure”, damp proofing is the precaution that everyone should take during construction.
With the advent of smart technology, turning your space into an energy-efficient haven is much more easily achievable than ever! Apart from reducing your electricity costs, an energy-efficient home has emerged as one of the most effective systems to limit carbon emission and pollution.
A home can be called energy efficient when it consumes lesser energy and eliminates wastage of electricity without compromising on the resident’s quality of life. Unlike often believed, one doesn’t have to splurge, to make your home an energy-efficient space.
Here are some simple ways you can make your home energy efficient.
Windows in the northern direction illuminate your space with soft, filtered light all day long. The light that comes through a northern window is not as harsh as the light that comes through southern windows. So, northern windows are favored by our designers as also Vastu Shastra alike, in the tropical climate of India. Windows to the eastern and western sides of the home ensure that the space stays illuminated all day long. Plan your window placement well to reduce the need for artificial lights when the sun is up.
We all know curtains elevate the aesthetics of the room and enable privacy. Did you know that you can use curtains to keep your room cool in summer and warm in winter? It all depends on the curtains you choose.
Traditional vetiver curtains (chik) should bedampened before hanging, to keep your home cool during the hot Indian summer. You can also make an aromatic spray by adding a few drops of essential oils in a spray bottled filled with water. Spray the curtain with fragrant water. Forget about air conditioning and revel in the cool, aromatic air that comes through these simple curtains.
Invest in quality insulating curtains to stop the cool or warmth from escaping your home through the windows. The thick curtains also stand as a barrier to chilly winter air and prevents it from getting into your home. Thus, reducing the need for heaters.
Walls painted in light pastel shades of white reflect a lot of light. It makes a room feel more lit up even with fewer lighting fixtures or natural light. You can also use reflective surfaces like a mirror to create illuminating reflections. This is most effective when you place the mirror opposite the light source.
Roofs get extremely hot during summers which makes our homes very hot, leaving with no option but to use the air conditioner more frequently. Science taught at Middle School level, could be innovatively used to tackle this problem. Paint your roof with reflective white paint meant for the roofs.This process is known as “cool roofing” in architecture. Instead of absorbing the sun’s heat, the white paint will reflect it. Thus, keeping your home cooler and keeping your electricity bills lower.
Deciduous trees remain lush green and leafy during summers and lose their leaves during winters. What a way nature has planned. Plant them in your homes – get cool shade during summers and sunlight passes through easily during winters.
Some deciduous trees in India are –
An energy-efficient home keeps on giving. So, what’s stopping you from reaching us for a professional job that will save you money every month?