Due to its low thermal conductivity, this material undergoes very little change in volume during expansion or contraction and is therefore considered a good fire resistant material. However, sudden and extreme changes in temperature can result in fractures or cracks. When glass is reinforced with a mesh of steel wires, such as in wire glass, its fire resistance is greatly increased and its tendency to break from sudden changes in temperatu
re is reduced. Reinforced glass has a high melting point and is therefore commonly used in construction to make fire-resistant doors, skylights, windows, etc.
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