longhouse cedar logo

Everything you Need to Know About Soffits and Fascias

Soffits Fascias
Rooftops are a vital part of any structure and good maintenance is integral to prolonging the life of a home. Moreover, homeowners should be familiar with each roof element and the role each area plays in keeping a home safe and structurally sound. Although the terms soffit and fascia are often discussed together, each one retains a separate purpose. Mainly, soffits and fascias increase air ventilation and protect other areas of the home. Fortunately, everything else you need to know about soffits and fascias may be found here.


  • The exterior soffit is the bottom section of the roof overhang. This includes an arch or projecting cornice.
  • Soffits are typically made from aluminum, fibre cement, recycled material, steel, vinyl, or wood.
  • The key function of this area of the roof is to decrease cooling and heating costs. Vented soffits allow for the ideal airflow required to preserve a healthy, breathable home.
  • Another function of soffits is to protect the interior of a building or house.
  • Soffits also guard the exterior of the home from bats, birds, and other small creatures. If they can’t get inside the home, they can’t cause any damage.
  • Without a soffit, a roofing system is unfinished and vulnerable to moisture.
  • Soffits installed inadequately may result in an overheated attic and lead to expensive cooling bills in the summer. During the winter months, rain and snow could accumulate and lead to mold development in the rafters.
  • Aesthetically, soffits cover the ventilation system in the attic and look better.
  • Soffits are designed to be installed from the external wall to fascia boards.
  • When the roof is level with the edge of the outside walls, the fascia itself might contain soffits for venting.
  • Essentially, soffits increase the lifespan of roofing material by guarding the rest of the home from harsh weather.
  • Regular maintenance of soffits is key to making them last longer. Soffits should be inspected often for mold, mildew, holes, warping, peeling, and pests, such as wasp nests. Repairs should be made as soon as possible by the homeowner or a professional.
  • Cleaning is straightforward with a solution of bleach and water applied with a soft brush or broom.


  • The horizontal sections of material that cover the space between the soffit and roof are fascia board. This board runs along the ends of a structure and typically attaches to the gutter system or other exterior elements.
  • Fascias are typically made from wood but may also be made from aluminum, plastic, recycled composite, or vinyl.
  • The main function of fascia is a point of attachment to gutters and drainpipe. Fascias also provide a barrier between the roof edge and the outside of the building.
  • Typically, fascia is installed beneath the roofline and behind the gutters.
  • Aesthetically, fascia creates a smooth appearance to the edge and shelters the roof from severe weather.
  • Although fascia board is not as susceptible to water damage as a soffit, they can unfasten if exposed to water. Moisture rots fascia and requires replacement.
  • Since soffits and fascias work together, maintenance is the same for both.
In any case, soffits and fascias are individual components of the roof with distinct functions. Installing soffits and fascias together helps prevent mold and mildew from occurring and damaging the structure. Knowing the difference between the two and providing regular maintenance saves homeowners from premature, expensive roof replacement. For more information or to have your soffits and fascias looked after give us a call at 250-248-5887 or send us an email at longhousetrading@telus.net.