Basics of Roof Systems

Roofs are considered to be one of the most essential elements of your home. Though roofs are so important, they rarely ever see a good inspection, either by building inspectors during construction or by home inspectors before they sell. Inspectors normally don’t go onto roofs but instead, look at them from the ground, which can be very insufficient.

Know the structure of a Roof

The first way that roofs clear water is the slant they have. The greater the slope of a roof, the faster water will run off. All roofs have a slight slope. Even roofs that are flat have attached decks and gutters that have a slight angle. This normally consists of a 1/4-inch drop every 4 ft for best drainage.

Roof formations vary anywhere from flat roofs as the most inexpensive option. An A-framed gabled roof can be built in a variety of angles to best have water and snow runoff. Homes along the coast use low shapes of the four-sided hip roof that best resists hurricane winds.

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The very top of a roof is called a “ridge”, the base is the “eave”, and sloped edges are called “rakes.” Where two roof planes meet up at an inside corner is a “valley.” Under all of these roof parts is the frame, which is made up of rafters or trusses.

Ventilation and Insulation are so important

One of the most essential factors in roof systems’ durability is proper ventilation. Without the ventilation, heat, and moisture build-up in the attic. This then causes rafters and sheathing to decay, shingles to buckle, and insulation will have no purpose.

With that being said, it is important to never block off places of roof ventilation, like ridge vents or soffit vents even during the winter. Appropriate attic ventilation will help control damage to the roofing structure caused by moisture. You will notice increased roofing material life, less energy consumption, and enhanced comfort levels in the rooms.

Know that roofs are affected also

Sun– Heat and UV rays will make roofing materials decline over time. This can occur faster on the sides facing towards the west or south.

Moss and algae– Moss and algae will grow on moist wood, shingles, and logs. Once it develops, moss adds even more moisture to a roof’s surface, causing it to rot. Trees and bushes should be cut away from homes and buildings to get rid of damp, shaded areas.

Missing or torn shingles– The key to a roof system actually being effective is being fully protected. When shingles are gone or ripped off a roof structure the home or building can expect leaks and issues. The problem is most likely all around the missing shingles. Missing or torn shingles should be replaced as soon as can be!