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I created the video so that an ordinary customer who has nothing to do with construction could imagine what two-beam beams look like. Many people call these two-beam beams by the names of the manufacturers - Steico, I-BEAM, I-JOIST. However, for us - roofers, the more acceptable name for the elements is two-beam beams. In the video you will learn how the installation of these beams is performed, and I will also mention the pros and cons. Truss-type rafters - • Installation of roof rafters. Flat st...