Functional requirements of roofs
(i) Weather resistance
(ii) Strength
(iii) Durability
(iv) Fire resistance
(v) Insulation
(vi) Appearance
(vii) Sound insulation
Functional requirements of roofs
(i) Weather resistance
(ii) Strength
(iii) Durability
(iv) Fire resistance
(v) Insulation
(vi) Appearance
(vii) Sound insulation
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