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2. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   The underlayment also sheds any water which penetrates the roof covering from an ordinary leak, a leak from wind-driven rain or snow, wind damage to the roof covering, or ice dams. However, the application of underlays may increase the roof temperature, which is the leading cause of ageing of asphalt shingles. Not installing an underlay may ...

3. Roof coating - Wikipedia

   en.wikipedia.org/wiki/Roof_coating

   Larger roofs with leaks and ponding water issues should be coated by a qualified professional. Additional roof coating products, such as foam or coatings designed for seams, may be required underneath the main coating layers. [citation needed] Supplement coating products are used to reinforce damaged or leak-prone problem areas.

4. Building envelope - Wikipedia

   en.wikipedia.org/wiki/Building_envelope

   Domestic roof construction may also be ventilated to help remove moisture from leakage and condensation. Walls do not get as severe water exposure as roofs but still leak water. Types of wall systems with regard to water penetration are barrier , drainage and surface-sealed walls . [ 5 ]

5. Membrane roofing - Wikipedia

   en.wikipedia.org/wiki/Membrane_roofing

   Membrane roofing is a type of roofing system for buildings, RV's, Ponds and in some cases tanks. It is used to create a watertight covering to protect the interior of a building. Membrane roofs are most commonly made from synthetic rubber, thermoplastic (PVC or similar material), or modified bitumen. Membrane roofs are most commonly used in ...

6. New-build owners claim roof leaks are causing misery - AOL

   www.aol.com/build-owners-claim-roof-leaks...

   Dean says he has found water pooling beneath his roof tiles and stains down the brickwork [BBC] Dean, 41, paid £375,000 for his home which was built in 2015. Each morning he wakes up and worries ...

7. Flashing (weatherproofing) - Wikipedia

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

   In earlier days, birch bark was occasionally used as a flashing material. [7] Most flashing materials today are metal, plastic, rubber, or impregnated paper. [8]Metal flashing materials include lead, aluminium, copper, [1] stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminium, terne-coated copper ...