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Insulation layer in roof can be _____________

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in Civil Engineering Drawing by (128k points)
Insulation layer in roof can be _____________

(a) 2.5cm

(b) 1.5″

(c) Only a

(d) 2.5cm and 1.5”

I got this question in homework.

Enquiry is from Measurement and Calculation of Quantities in portion Methods of Building Estimate & Estimate of Building of Civil Engineering Drawing

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Right option is (d) 2.5cm and 1.5”

To elaborate: Insulation acts as a barrier to heat flow and is essential for keeping your home warm in winter and cool in summer. A well-insulated and well-designed home provides year-round comfort, cutting cooling and heating bills by up to half. This, in turn, reduces greenhouse gas emissions.

Climatic conditions influence the appropriate level and type of insulation. Establish whether the insulation is predominantly needed to keep heat out or in (or both). Insulation must cater for seasonal as well as daily variations in temperature.

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