![]() counter-flashing is used to keep water from penetrating through the penetration. Roofing counter flashing is the metal, usually lead or aluminum counter-flashing installed beneath roof penetrations. counter-flashing should never be used to cover up cracks in either type of material. Counter-flashing should also be installed where two different types of roof materials meet for example, between an asphalt shingle roof and a tiled one. Counter-flashing can be made out of metal or any rigid material such as brick or plastic sheeting. Counterflashes are installed on sloped roofs beneath chimneys and other protrusions like dormer windows. Water can cause serious damage to your roof decking and home structure, so it is important to make sure that your counter flashing is in good conditionĬounterflashing helps to protect the roofing below, typically asphalt shingles or clay tiles, from being damaged by water coming off of the upper layers of the roof. ![]() If you do not have counter flashing installed around your chimney or other roof penetrations, you could be facing expensive repairs down the road. Counter flashing helps to prevent water infiltration by creating a waterproof seal between the roofing material and the penetration. ![]() It is typically installed around chimneys, vents, and other roof penetrations. In this article, we will discuss what counter flashing is and why it is important.Ĭounter flashing is a piece of metal or other material that is installed on top of roofing material, such as shingles, to prevent water from seeping into the roof decking. "We hope that by using the YMCA to demonstrate green roof potential, we can persuade other local buildings to follow them and join the green roof revolution."Ĭambridge is top in the UK outside of London for lower maintenance 'extensive' green roofs.If you are not an experienced roofer you probably do not know why roofing counter flashing is important or what it is. "This will include growing vegetables, keeping bees, learning about biodiversity, and training in new green industries. The Green Roof Project recently relocated a showcase garden at Saxon Court on to the roof of the YMCA building.Ī spokesperson for the project said: "We want residents to enjoy all the benefits of having a living roof. "Since COVID, I've been really keen on this idea that people can have access in urban areas to greenspace at roof level for their well-being.” "But for me, the most important thing is actually they deliver real meaningful wildlife in cities. "Green roofs and what is known as a source control, as a first place for the rain to go and green roofs store that rain temporarily. "Also, we get these flash summer storms and we get local flooding. With aims of becoming carbon neutral by 2030 and carbon negative by 2050, the green roofs are a part of the city council's aim for Milton Keynes to combat climate change and become "the greenest place in the world".ĭusty Gedge, urban climate change officer at Gentian, said: “We're increasingly getting heat waves and green roofs help to cool cities down. 'Intensive' green roofs classify as high maintenance and closely resemble parks and gardens. 'Green roofs' can include high-rise rooftop gardens with beds, pots, and rolled-out green carpets, as well as roofs on smaller buildings such as sheds. Milton Keynes in Buckinghamshire has the UK's second highest number of 'intensive green roofs' outside of London and it is estimated the city could retrofit another six full-size football pitches worth of roofs in the future. A council which has turned rooftops into thriving greeneries is hoping more cities will follow suit.
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