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  • Antonyshyn Roofing Ltd.
    wood grain and is a minimum of 7 16 thick The disadvantage is that when exposed to moisture OSB can expand up to 15 weakening the roof deck and causing shingles to buckle and look unsightly Plywood has a higher tolerance to moisture and won t expand nearly as much as OSB Plywood at 5 8 or thicker can be installed on rafters at 2 centre or less without the use of H clips The disadvantages of using plywood is it s higher cost it s weak spots and having to work with the wood grain creates more waste Boards are found generally on homes built in the 1950 s or older Thick strong and resilient to moisture are there advantages There disadvantages are there availability high cost and there movement under the shingles From the extreme heat to the extreme cold the boards have a tendency to expand and contract causing the shingles to lift and buckle The larger the boards the bigger the movement so 1 X6 boards which were most commonly used move less than 1 X10 boards which were less commonly used It is expensive and time consuming to have your entire roof deck replaced and

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/sheeting.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    as the shingles covering them Felt paper is the next step in completing a job well done Although in the last few years a synthetic version of underlay has become available felt paper is still better than nothing The advantage of felt paper underlay versus synthetic underlay is the cost The disadvantages are that it tears and rips easily during application it seldom goes on perfectly strait and when exposed to moisture can buckle and lift shingles Synthetic underlay costs a little more but definitely reaps the benefits It doesn t tear or rip during application it goes on strait and it s completely waterproof On a low slope application meaning 2 12 and 3 12 pitches 6 of ice and water shield at all eaves and valley s is a minimum code requirement For the remainder of the roof surface it is code to have not 1 but 2 layers of felt or synthetic underlay Although it is not code to have an underlay on a board deck roof we make it mandatory by our standards The first reason is to help flatten out the roof surface so that over time the board lines and imperfections won t be

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/underlay.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    size and design of the house Often we ll need to make changes to older homes because they ve been renovated or have no vents at all It is sometimes necessary to patch and eliminate vents Venting works like a car motor there is an intake and an exhaust To get the hot air to escape there has to be cool air that enters Hot air rises so the top of the roof is where the air escapes At the bottom there is an equal amount of vents where the cool air enters These vents are under the overhang soffit or 3 to 4 from the bottom edge We may use vents instead of soffit venting if there is no overhang on your house or if the outside wall meets under the roof deck and doesn t allow for air passage If you have an uneven balance of soffit to attic ventilation intake to exhaust this will sometimes cause a reverse effect called drafting where air rain and snow can be sucked into the vent potentially causing a leak All shingle manufacturer warranties state that you must have proper roof ventilation or warranty is void Plumbing stacks should be air

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/ventilation.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    but the moist hot air will condensate and freeze to the underside of your roof deck and on your insulation Over time this can permanently damage your rafters roof deck and insulation which will cause mould and structural problems Areas where air leakage commonly occurs is around obstacles that penetrate from the living space into the attic such as chimney s plumbing stacks pot lights bathroom and kitchen exhausts When

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/vapour.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    modern alternative if this is the case If bats or blow in insulation have been damaged by saturation the insulation should be replaced as it has most likely lost R value and will start to grow mould Spray foam although expensive is a good alternative as it sticks takes up little space won t move around and acts as insulation and a vapour barrier in one A certified insulation contractor

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/insulation.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    can do is have your roof cleared of snow as needed by a professional or purchase a roof rake and clear the bottom 6 to 8 before the ice has a chance to form The south slope is usually the worst area because of the sun and some winters are worse than others You ll see and hear of many different products such as heater cords and panels but they

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/temps.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    your flashing without lifting and damaging shingles The age and condition of the house roof siding brick or stucco are all good clues If these areas are in ruff shape it is likely that the flashing is to It is our common practice to make sure you are well informed of the potential condition of the flashing and the possible additional costs Big thick gobs of tar smeared down the sides of stucco siding and brick walls are not professional Tar should be used to tab shingles little dabs in the corners of flashing on nail heads and for emergency leaks only Tar can leak immediately dries up and breaks down in 1 to 5 years It is too often that I see jobs where lots of tar has been used instead of replacing the old flashing This is old practice and doesn t belong in today s field The cost for materials and labour is far too much money to risk having a leak and damaging the inside of your home The cost to have the job done properly is usually more but ends up saving you money over time and looks better Aluminum or galvanized flashing installed properly

    Original URL path: http://www.antonyshynroofing.ca/browse/roofing/flashing.php (2016-04-29)
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  • Antonyshyn Roofing Ltd.
    About Us Roofing Exteriors Products Free Estimate Photo Gallery Contact Us

    Original URL path: http://www.antonyshynroofing.ca/browse/gallery/roofing.php (2016-04-29)
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