Question

Thermal insulation of roofs can be obtained by covering the top exposed surface of the roof with ________

(a) 2.5 cm thick layer of mud mortar

(b) 2.5 cm thick layer of coconut pitch cement concrete

(c) 7.5 cm thick layer of mud mortar

(d) 7.5 m thick layer of coconut pitch cement concrete

This question was addressed to me during an online exam.

This key question is from Thermal Insulation topic in portion Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

Answer 1

Correct choice is (b) 2.5 cm thick layer of coconut pitch cement concrete

Explanation: Thermal insulation of roofs can be obtained by covering the top exposed surface of the roof with 2.5 cm thick layer of coconut pitch cement concrete. Coconut pitch cement concrete is prepared by mixing coconut pitch with water and cement.