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3. Longevity of Roofs Heat reflective sheets can also contribute to the longevity of roofing systems. By reducing the thermal expansion and contraction that roofs experience due to temperature fluctuations, these materials help prevent cracking and other forms of damage, ultimately prolonging the lifespan of the roof.
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Rebar, or reinforcing bar, is a common steel bar used to reinforce concrete. Concrete is strong under compression but weak under tension. Therefore, rebar is embedded within concrete to improve its tensile strength, reducing the likelihood of cracking and structural failure. Proper placement of rebar is crucial for maximizing its effectiveness, which is where rebar chair supports come into play.