Q&A for How to Install Asphalt Shingles

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  • Question
    What are common mistakes people make when installing new shingles?
    David Bitan
    Roofing Contractor & Maintenance Professional
    David Bitan is a roofing professional, licensed contractor, and the owner and founder of Bumble Roofing based in Southern California. With over 12 years of construction industry experience, David specializes in restoring, repairing, and maintaining residential, commercial, and industrial roofs. With over 60 years of combined experience, Bumble Roofing provides easy, friendly services to structures including residential, commercial, industrial, multi-family, and government buildings along with hospitals, hotels, and churches.
    Roofing Contractor & Maintenance Professional
    Expert Answer
  • Question
    Should I put an underlayment underneath my shingles?
    David Bitan
    Roofing Contractor & Maintenance Professional
    David Bitan is a roofing professional, licensed contractor, and the owner and founder of Bumble Roofing based in Southern California. With over 12 years of construction industry experience, David specializes in restoring, repairing, and maintaining residential, commercial, and industrial roofs. With over 60 years of combined experience, Bumble Roofing provides easy, friendly services to structures including residential, commercial, industrial, multi-family, and government buildings along with hospitals, hotels, and churches.
    Roofing Contractor & Maintenance Professional
    Expert Answer
    Underlayments help prevent leaks from getting through your roof, so you should install a layer before you start putting on shingles.
  • Question
    How do I figure out how many shingles to buy?
    David Bitan
    Roofing Contractor & Maintenance Professional
    David Bitan is a roofing professional, licensed contractor, and the owner and founder of Bumble Roofing based in Southern California. With over 12 years of construction industry experience, David specializes in restoring, repairing, and maintaining residential, commercial, and industrial roofs. With over 60 years of combined experience, Bumble Roofing provides easy, friendly services to structures including residential, commercial, industrial, multi-family, and government buildings along with hospitals, hotels, and churches.
    Roofing Contractor & Maintenance Professional
    Expert Answer
    Calculate the area of each section of your roof by multiplying the length by the width. Then, add the area of each section of roof to find out how many total square feet you need.
  • Question
    Can I install shingles on a hot day?
    David Bitan
    Roofing Contractor & Maintenance Professional
    David Bitan is a roofing professional, licensed contractor, and the owner and founder of Bumble Roofing based in Southern California. With over 12 years of construction industry experience, David specializes in restoring, repairing, and maintaining residential, commercial, and industrial roofs. With over 60 years of combined experience, Bumble Roofing provides easy, friendly services to structures including residential, commercial, industrial, multi-family, and government buildings along with hospitals, hotels, and churches.
    Roofing Contractor & Maintenance Professional
    Expert Answer
    Don't try to install your shingles or walk on the roof while it's very hot. This can damage the shingles. If the weather is hot, try working only in the morning while it's cooler.
  • Question
    Does the nail have to go through the plywood when installing shingles?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    Yes, you want to make sure the nails are long enough to penetrate the wood substrate.
  • Question
    Will shingles flatten out after a few days?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    Once the shingles start getting warm and heat up, they will flatten out. This could take many days, but will lay flat eventually.
  • Question
    When is it too cold to shingle a roof?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    The winter months are not good for installing shingles. A good time is late spring/early summer.
  • Question
    Where is the exact spot on the shingle to place the nails?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    Just about 2 inches above the shingle tabs and not in the tar strip.
  • Question
    Is there a certain temperature to have a new roof put on?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    It's good to wait until early summer in colder regions, and year-round in the warmer regions.
  • Question
    Does the plastic tape on the back of shingle need to be removed?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    No, you do not have to remove this black strip. The strip will eventually melt away.
  • Question
    How do I roof over existing shingles?
    Mark Spelman
    Construction Professional
    Mark Spelman is a General Contractor based in Austin, Texas. With over 30 years of construction experience, Mark specializes in constructing interiors, project management, and project estimation. He has been a construction professional since 1987.
    Construction Professional
    Expert Answer
    The key to reroofing is that the existing shingles are removed at the tabs only.
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