Building finishes like plastering, varnishing, dis-tempering, white-washing, coloring etc basically perform two functions as mentioned below.

  • They give surfaces a protective coating that protects them from the effects of weather like rain water, frost, heat, etc., and
  • They provide decorative effects that add to the appearance of the surfaces and the building as a whole.

1. coating

It is the process of covering various surfaces of a structure with plastic material such as cement mortar, lime mortar or composite mortar etc. to obtain a uniform, smooth, regular, clean and durable surface. Plastering hides substandard quality materials and defective workmanship and also provides a protective coating against atmospheric influences. It further provides a basis for obtaining other decorative finishes such as painting, whitewashing, etc.

2. pointing to

It is the process of finishing mortar joints in exposed brick or stone masonry, which is achieved through two operations. First, the masonry joints in brick or stone are raked to a depth of about 15 mm and then these spaces are filled with a suitable mortar of a richer mix. Pointing gives a nice look to the masonry work and also prevents the entry of water into the wall.

3. Picture

It is the process of coating all surfaces such as walls, ceilings, woodwork, metalwork etc. with paint as a final finish to protect them from the effects of weathering so as to prevent decay of wood and corrosion in metal to achieve a clean, colorful and pleasing surface over and over and over again.

4. Varnish

It is the process of applying varnish to wooden surfaces and painted surfaces, to improve their appearance and protect them from atmospheric action.

5. tempering

It is the process of applying distemper to plastered surfaces more easily and at a lower cost than paints and varnishes, to protect them from the effects of weather and improve their appearance. A distemper, such as a water paint, consists of whitening (i.e. powered chalk), glue or casein that acts as a binder, and a suitable proportion of sharp color pigments. Distempers are readily available in different colors as a hard paste or as a dry powder in sealed tins.

6. white wash

In this process a mixture of pure fat slaked lime is first prepared in sufficient quantity of water. It is then filtered through a thick cloth and some amount of boiled gum and rice mixture is added to it. The solution thus created, called a white-wash, is then applied by brush to a specified number of coats, usually three.

7. color wash

It is similar to white wash, except color pigment of the desired shade and nature, unaffected by lime, is added to the white wash. Color washing is done in only one or two coats.

Er. Mukesh Kumar

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Er. Mukesh Kumar is Editor in Chief and Co-Funder at ProCivilEngineer.com Civil Engineering Website. Mukesh Kumar is a Bachelor in Civil Engineering From MIT. He has work experience in Highway Construction, Bridge Construction, Railway Steel Girder work, Under box culvert construction, Retaining wall construction. He was a lecturer in a Engineering college for more than 6 years.