Guide To Learn
There are various materials, which are used as damp-proof courses depending upon the location, economy and degree of damp proofing desired. However, while selecting a particular damp-proofing material, the following requirements of an ideal damp-proofing material should be remembered. The materials generally used for DPC are listed below. 23.4.1 Hot bitumen or hot asphalt This […]
The following precautions should be taken to prevent the dampness in buildings before applying the various techniques and methods described later: 23.3.1 Prevention of dampness The various techniques and methods, generally adopted to prevent the defects of dampness, are as follows: 23.3.1.1 Use of damp-proofing courses These are the layers or membranes of water repellent […]
Dampness in buildings is generally due to one or more of the following reasons: These causes give rise to an easy access to moisture to enter the building from different points, such as rising of moisture from the ground and rain penetration through walls, roofs and floors. The moisture entering the building from the foundation […]
Nowadays walls of the bathrooms, kitchens, work area, etc. are given a covering of glazed tiles in order to provide improved cleanliness and aesthetic appearance. Tiles are available in various forms, shapes, sizes and colours. Before fixing the tiles, the verticality of all the corners should be checked and all the concealed plumbing and electric […]
The main object of applying distemper to the plastered surfaces is to create a smooth surface. The distempers are available in the market under different trade names. They are cheaper than paints and varnishes and they present a neat appearance. They are available in a variety of colours. 22.6.1 Properties of distempers 22.6.2 Process of […]
A colour wash is usually prepared by adding the necessary colouring pigments in suitable quantities to the screened white wash or liquid mixture of white wash. It should be ensured that the colouring pigment is not affected by the presence of lime. The colour wash is applied in exactly the similar manner as white wash. […]
The process of white washing process can be done through carried out under the following operations: 22.4.1 Preparation of white wash The white wash is prepared from fresh burnt shell or pure stone lime mixed with water. Shell lime is preferred to pure lime as it is whiter and slakes more perfectly to a smoother […]
22.3.1 New woodwork Normally, four coats of paint are required for new woodwork. The process of painting is as follows: 22.3.2 Repainting old woodwork If the paint on the old woodwork has cracked or has developed blisters, it is to be removed. If the surface has become greasy, it should be cleaned by rubbing down […]
22.2.1 Characteristics of a good paint A good paint should possess high spreading power and should be durable, tough and resistant to wear on drying. It should work smoothly and freely and should not crack, fade or change colour. Its surface should become dry in 9 hours and hard enough to take another coat in […]