Cornerback Aaron Donald during a Los Angeles Rams game.

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Our roof cost calculator will help you accurately plan your spend and this might include factoring in additional works if you find your current job is going to cost less than you thought. Get quotes from reputable suppliers here. Save 1,000's on your roof project. Get no obligation quotes today. Get a FREE Quote. Roof Framing: collar ties, rafter ties, tension beams & structural ridge beams: some of these can support the roof and prevent ridge sagging and wall spreading. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings, including definitions of collar ties, rafter ties, and structural ridge beams. Upper Lateral horizontal bracing : Arranged between the first column space or the second column space at both ends of the building ,the distance of roof bracing less than 60m . Down Lateral horizontal bracing : Arranged when span more than 18m or span less than 18m but with over head crane , upper and down lateral horizontal bracing should in same column space to.

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