Curtain wall

Curtain wall


A curtain wall system is an outer covering of a building in which the outer walls are non-structural, utilized to keep the weather out and the occupants in.

Since the curtain wall is non-structural, it can be made of lightweight materials, thereby reducing construction costs.

When glass is used as the curtain wall, an advantage is that natural light can penetrate deeper within the building.

The curtain wall façade does not carry any structural load from the building other than its own dead load weight, The wall transfers lateral wind loads that are incident upon it to the main building structure through connections at floors or columns of the building.

A curtain wall is designed to resist air and water infiltration, absorb sway induced by wind and seismic forces acting on the building, withstand wind loads, and support its own dead load weight forces.

Curtain walls differ from storefront systems in that they are designed to span multiple floors, taking into consideration design requirements such as: thermal expansion and contraction; building sway and movement; water diversion; and thermal efficiency for cost-effective heating, cooling, and lighting in the building.

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