Interior Terms

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Under-coat
After the primary coat is dry, second coat or under-coatings are applied on the primed surface. The color of the under-coat should approximately be of the same shade as that of the desired finish. It should be a thin opaque film, free from brush marks.


Under-pinning
This term is applied to the building of new work underneath an existing structure without disturbing its stability. It may be necessary when defective foundation of a wall is to be replaced with new foundation or when the existing foundation of a wall is required to be strengthened to enable it to carry more loads.


Urinals
They fall under the category of soil appliance and as such the discharge from urinals is connected to soil pipe either directly or through a trap provided with gun-metal or bass domed shaped removable grating.

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