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Glossary Terms

Glossary  of Roofing Terms

At Century Roofing Limited, we hope to educate our homeowners on any terms undefined. We’ve compiled a handy list of some of the most common roofing terms so that you can understand every step of the roofing process.

  • Back surfacing

    Fine, granular material added to the backs of shingles to keep them from sticking together.
  • Ballast

    A heavy material that is used as an anchor to hold roof membranes in place.
  • Base flashing

    Roof membrane material that protects the joints between the roof and adjoining walls, or other vertical surfaces, from exposure to water and weather.
  • Base ply

    The lowest ply of roofing material in the roofing system.
  • Base sheet

    Asphalt-coated felt that is used as the first ply in certain roof systems.
  • Batten

    Thin strips of wood used to provide a fixed point to which other roofing materials, like shingles or tiles, can be attached.
  • Bitumen

    A naturally occurring black viscous material made up of decomposed organic materials and hydrocarbons that is used for roof surfacing.
  • Built-up roof membrane

    A multi-layered roof membrane made up of alternating layers of felts, fabrics or mats and bitumen.
  • Butt flashing

    The butt flashing is a metal strip used to keep water from seeping into the upper edges of the membrane base flashing, wall flashing or primary flashing.
  • Butyl

    A rubber-like material that is used as a sealant or adhesive.
  • Butyl tape

    A preformed sealant tape that is used to close joints and seams.

What are people saying about

Century Roofing

Century Roofing will ensure that each client is happy with their new roofing and/or siding project. We encourage our clients to provide us with feedback on their projects.

Here are some kind works that some of our clients have to say about working with our team.

  • I am satisfied with the work carried by Century Roofing. I was kept well informed of all the tasks they... read more

    Brayden Anderson Avatar Brayden Anderson
    9/17/2018

    I had hired Century Roofing for the installation of a new roof at our home in Springbank. They team did... read more

    Lautaro Smith Avatar Lautaro Smith
    10/18/2018
  • We had a fantastic experience with Century Roofing. They took care of all our insurance work after a storm. Any... read more

    Krista Kellock Avatar Krista Kellock
    12/27/2017

    Ethical.respectful.knowledgeable. dependable. And most importantly trustworthy.

    Ted T Avatar Ted T
    2/26/2018
  • Century Roofing did a fantastic job at a very reasonable price. I am very happy that I found them for... read more

    Brick James Avatar Brick James
    9/11/2018

    Excellent professional advice, prompt and solid work

    We had three quotes done for re-roofing our home. Bill’s quote was not just... read more

    Martin Engeler Avatar Martin Engeler
    7/21/2017
  • I am pleased to see the dedication of Century Roofing to provide the best and satisfactory roofing services in Calgary... read more

    Antonio Davis Avatar Antonio Davis
    11/03/2018

    We had Century Roofing out to fix our roof from the 2013 Airdrie hail storm (fixed in August 2014) and... read more

    Nicole Hornett Avatar Nicole Hornett
    8/26/2014
  • Completely satisfied with their work and cost. We used Century Roofing for another home of ours and were very pleased.... read more

    Danielle Miller Avatar Danielle Miller
    9/17/2018

    We experienced a leak in our roof and then we contacted Century Roofing for roof repairs. The staff at Century... read more

    Marco Phillips Avatar Marco Phillips
    11/03/2018

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