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)

Product Information

Flashing damage is, without a doubt, an indicator that you may need roof repairs or an update, so regularly monitoring the quality of your flashing might save you big down the road.

The origin of the term flash and flashing are uncertain, [2] but may come from the Middle English verb flasshen, 'to sprinkle, splash', related to flask. [3]Flashings and copings are fabricated from cold rolled copper in weights ranging between 16 and 20 ounces per square foot. The required weight depends on the application and is outlined in the discussion related to each detail. Lead is traditionally used as a flashing material around upstands in roofs, such as chimneys because of its durability. The minimum specification that should be used is Code 4 lead (1.8 mm) which is both malleable and resistant to fatigue splits that could be caused by expansion and contraction. Code 3 (1.32 mm) is thinner, lighter and cheaper, and is commonly used for lead soakers which are the concealed waterproof sections positioned underneath slates and plain tiles. Smith, Percy Guillemard Llewellyn. Notes on building construction. Part 1. London, Oxford and Cambridge: Rivingtons, 1875. Chapter 10, Plumbers work. Print. Before the availability of sheet products for flashing, builders used creative methods to minimize water penetration. These methods included angling roof shingles away from the joint, placing chimneys at the ridge, building steps into the sides of chimneys to throw off water and covering seams between roofing materials with mortar flaunching. The introduction of manufactured flashing decreased water penetration at obstacles such as chimneys, vent pipes, walls which abut roofs, window and door openings, etc. thus making buildings more durable and reducing indoor mold problems. It is also essential to prevent leaks around skylights or roof windows. [ citation needed] Moreover, flashing is important to ensure integrity of the roof prior to a solar panel installation. [ citation needed]

Chimneys need flashing to prevent water pooling between the chimney fixing and the roof. They tend to use a combination of different roof flashing types to create the most effective seal. Industry Standard: Except as otherwise shown or specified, comply with applicable recommendations and details of the "Copper in Architecture" handbook published by the Copper Development Association Inc. (CDA). Conform to dimensions and profiles shown. Different slate profiles, roof materials such as corrugated roofing, roof pitches and the number of windows you’re installing all impact which flashing is most appropriate. 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. 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.There are different options for sealant. Traditionally, roofers used nails to secure the flashing to the roof, but now most commonly use roofing cement. INSERT SPECIFIC LISTING (BELOW) OF SEPARATIONS KNOWN TO BE REQUIRED FOR WORK AS DETAILED. ATTEMPT SHOULD BE MADE IN DETAILING TO AVOID THIS NEED.

Provide maintenance data in Operations and Maintenance manual for maintaining applied coatings on copper panels.A copper termite shield may be required between the wood structure and the concrete or masonry. For Additional Information: Installation: A ridge is a flashing which is installed on the apex of a roof, where two roofing sheets meet at the top, and works by preventing any rain, snow or wind from entering the roof and preventing unnecessary heat loss from the building. There are a wide range of roof flashing types that are used in different contexts. Some are designed for roofers to install around features such as chimneys, roof windows and vents. Others are designed to protect the roof where it meets the house wall. Product data for flashing, metal, and accessories: Manufacturer's technical product data, installation instructions and general recommendations for each specified sheet material and fabricated product. Description: Copper flashing is used wherever a wall intersects a roof. Such a system usually consists of copper counterflashing and base flashing in conjunction with roof composition flashing or coping. The counterflashing diverts water to the base flashing, which, in turn, diverts it to the composition flashing. The base flashing is designed to accommodate building movement. It laps the composition flashing at least 4". The composition flashing is extended up a cant strip then up the wall at least 10".