I need a solution for penthouse roof that is constructed in the 3rd floor.. The building is in the countryside wherein all the 4 sides is clear without any buildings. Concrete slab is heavy, since the footing may not be conducive to take the load, looking for a light weight roofing solution, whereby the roof offers concrete like or better insulation from rain sound and other sounds, insulated from heat yet economical and can bear the wind thrust on the 3rd floor.

Hi Chandru, Namashkar, Why dont you go for green roof or say slab with undulations which way you can cut direct light and heat along with that which can also have ventilation . water can be used as an element may be in the form of water tank to cool the roof or say roof garden. Thanks and regards Riddhish

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