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2. Flashing (weatherproofing) - Wikipedia

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

   Drip edge A metal used at the edges of a roof. Step flashing (soaker, base flashing) Pieces of flashing material which overlap each other in "steps". Counter flashing (cap flashing) Covers a base flashing. Pipe flashing (pipe boot, vent boot, pipe flange) A product used where pipes penetrate roofs. Chimney flashing A general term for flashing a ...

3. Hemming and seaming - Wikipedia

   en.wikipedia.org/wiki/Hemming_and_seaming

   Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. Hemming is the process in which the edge is rolled flush to itself, while a seam joins the edges of two materials. [1] Hems are commonly used to reinforce an edge, hide burrs and rough edges, and improve appearance. [1]

4. Rain gutter - Wikipedia

   en.wikipedia.org/wiki/Rain_gutter

   Roof integral trough along the lower edge of the roof slope which is fashioned from the roof covering and flashing materials. Discrete trough of metal, or other material that is suspended beyond the roof edge and below the projected slope of the roof. Wall integral structure beneath the roof edge, traditionally constructed of masonry, fashioned ...

5. List of commercially available roofing materials - Wikipedia

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

   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. Flat-seam metal with or without soldered seams. Steel coated with a coloured alloy of zinc and aluminium. Stone-coated ...

6. Reglet - Wikipedia

   en.wikipedia.org/wiki/Reglet

   A reglet is found on the exterior of a building along a masonry wall, chimney or parapet that meets the roof. It is a groove cut within a mortar joint that receives counter-flashing meant to cover surface flashing used to deflect water infiltration. Reglet can also refer to the counter-flashing itself when it is applied on the surface, known as ...

7. Roof shingle - Wikipedia

   en.wikipedia.org/wiki/Roof_shingle

   Where slates are particularly heavy, the roof may begin to split apart along the roofline. This usually follows rot developing and weakening the internal timbers, often as a result of poor ventilation within the roof space. An important aspect to slate roofs is the use of a metal flashing which will last as long as the slates. Slate shingles ...