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2. Flashing (weatherproofing) - Wikipedia

   en.wikipedia.org/wiki/Flashing_(weatherproofing)

   Flashing is thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier system. In modern buildings, flashing is intended to decrease water penetration at objects such as chimneys , vent pipes, walls, windows and door openings to make buildings more durable ...

3. Salt spray test - Wikipedia

   en.wikipedia.org/wiki/Salt_spray_test

   The salt spray test (or salt fog test) is a standardized and popular corrosion test method, used to check corrosion resistance of materials and surface coatings.Usually, the materials to be tested are metallic (although stone, ceramics, and polymers may also be tested) and finished with a surface coating which is intended to provide a degree of corrosion protection to the underlying metal.

4. Soldering - Wikipedia

   en.wikipedia.org/wiki/Soldering

   Resistance soldering equipment, unlike conduction irons, can be used for difficult soldering and brazing applications where significantly higher temperatures may be required. This makes resistance comparable to flame soldering in some situations, but the resistance heat is more localized because of direct contact, whereas the flame might heat a ...

5. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Another advantage of copper roofing systems is that they are relatively easy to repair. Standing-seam metal roof with concealed fasteners. Mechanically seamed metal with concealed fasteners contains sealant in seams for use on very low sloped roofs, suitable for roofs of low pitch such as 0.5/12 to 3/12 pitch.

6. Copper in architecture - Wikipedia

   en.wikipedia.org/wiki/Copper_in_architecture

   The final sulfate patina is a particularly durable layer that is highly resistant to all forms of atmospheric corrosion and protects the underlying metal against further weathering. As patination progresses and the durable sulfate layer forms, the rate of corrosion decreases, averaging between 0.0001–0.0003 mm (3.9 × 10 −6 –1.18 × 10 ...

7. Thermal spraying - Wikipedia

   en.wikipedia.org/wiki/Thermal_spraying

   It is typically used to deposit wear and corrosion resistant coatings on materials, such as ceramic and metallic layers. Common powders include WC -Co, chromium carbide , MCrAlY, and alumina . The process has been most successful for depositing cermet materials (WC–Co, etc.) and other corrosion-resistant alloys ( stainless steels , nickel ...