Posted 20 hours ago

Copper Flashing - 16 oz 24 Gauge 10' Rolls in Various Widths for Roofing, DIY, or Contractor use-Lead Free Copper - can be Used with Pressure Treated Lumber (2" Width)

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Sealant Joints: Where movable, nonexpansion type joints are indicated or required for proper performance of work, form metal to provide for proper installation of elastomeric sealant, in compliance with CDA standards. Fabricate counterflashings and reglets as 2 piece assemblies to permit installation of counterflashing after base flashings are in place. General: Except as otherwise indicated, comply with manufacturer's installation instructions and recommendations and with the "Copper in Architecture" handbook published by the Copper Development Association Inc. (CDA). Anchor units of work securely in place by methods indicated, providing for thermal expansion of units; conceal fasteners where possible, and set units true to line and level as indicated. Install work with laps, joints, and seams that will be permanently watertight and weatherproof.

The wide variety of uses for copper as a flashing material makes it impossible to discuss installations for all specific conditions. However, the principles behind good applications can be summarized. If you’re installing skylight or roof window flashing, view all our instructional videos on how to install the different varieties we have available. Alternatively, view more information on our blog: what is skylight flashing? A continuous roof flashing, also known as an “apron flashing” is a long, singular piece of flashing made from thin metal that seals the roof joint between a vertical wall and a sloped roof, and funnels water away, preventing leaks.These types of flashings are used in roofing applications. Many flashings for specific feature installations, such as roof windows or chimneys, are made up of a few of these types. Roofing Felt Underlayment: Asphalt saturated felt weighing not less than 30 lbs per 100 square feet.

Copper movement must always be anticipated. It should be accommodated with proper details, but in circumstances where movement cannot be tolerated, it should be limited. The latter condition is often encountered with edge strips, gravel stops, and continuous cleats. Nails can sometimes lead to issues with inflexibility – not allowing the roof to expand and shrink in different weather conditions – so roofing cement is usually preferable. Examples of flashing on roof elementsSoft zinc" is a newer, proprietary flashing material. It is a relatively malleable material, making it useful for complex roofing connections. It provides normal soft soldering capabilities and delivers easy folding. Soft zinc is said to be an "environmentally friendly" replacement for lead flashing; like lead, it is recyclable, while avoiding lead-contaminated runoff. [13] Types [ edit ] The flashing visible here is the apron below the dormer and the valley flashing in the open valley. The step flashing (soakers) are properly installed underneath the roof and wall shingles and thus is not visible. Hôtel Demoret Moulins, France Flashing is usually a different material from your roof, but it plays an important function to your home by keeping the more vulnerable spots of your roof safe from the weather. On nailable sheathing, the flashing should be fastened with wide head nails or cleats. Nailing through flashing prohibits movement and should be avoided when movement is expected. The nail should be driven just above the upper edge of the flashing, allowing its wide head to hold the copper sheet. Nails or cleats should be spaced no more than 12" O.C.

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