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EDIT EXAMPLES BELOW BY DELETING ITEMS NOT REQUIRED, ADDING OTHERS, OR REVISING TEXT TO CLARIFY DESCRIPTIONS. Remove protective film (if any) from exposed surfaces of copper promptly upon installation. Strip with care to avoid damage to finishes. The last two details show typical shelf angle flashing. These follow the same principles outlined in the first detail.
General: Submit the following in accordance with Conditions of Contract and Division 01 Specification Sections.Roofing material is an important consideration, but one thing you additionally must consider is your flashing material. You have a number of types of roof flashing to meet a variety of needs and budgets. The majority of materials used for flashings are thin, malleable metals, with the three most popular being:
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.
Flashing has to be engineered and installed with care so that water is deflected away from the building. Improper installation can result in water being directed into a building. Although copper flashing is not adversely affected by the corrosive alkalies present in masonry mortar, it's long term performance can be compromised by excessive chlorides. Therefore, chloride based additives in the mortar should be avoided.