#Proper Leadwork: Allowing for Movement — Lap Lengths, Fixings & Expansion Joints Lead moves. Temperature swings, solar gain, wind chill and building heat loss all drive lead thermal movement. If we ignore it, sheets creep, crack, or pull out of chases. When we design for it, roofs last decades with clean lines and quiet performance. […]
Tag Archives: hollow rolls
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#Proper Leadwork: Lead Codes Decoded (3–8) for Flashings, Hollow Rolls & Bay Sizing Correct lead code selection is the foundation of #proper leadwork. Choose the wrong code and you risk splits, ripples, nail pops, ponding or premature failure. Choose the right code and your flashings, bays, hollow rolls and gutters work with thermal movement rather […]