#Proper Leadwork: Step Flashings vs Cover Flashings—Heights, Chases & Mortars At abutments and chimneys, two details dominate: lead step flashing and lead cover flashing. Both aim to shed water and accommodate thermal movement. Yet they behave differently in brick, block, stone and mixed substrates. This practical guide shows when to use each, what heights and […]
Tag Archives: proper leadwork
#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. […]
#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 […]
What is Rolled Lead Sheet? Rolled lead sheet is a malleable roofing metal used to create weathertight coverings and details. It is commonly used for lead flashings, chimney flashings, valley gutters, box gutters, lead bays, dormers, parapets, ridges, hips, weatherings and complete lead roof coverings. In the UK, rolled lead sheet for roofing should be […]
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