Guide to Roof Ventilation and its Importance
A lot of homeowners do not fully understand how important roof ventilation is although they know what it is. Good ventilation is critical to the prolonged life of your roof. To know the importance of roof ventilation, one needs to understand what happens when there is no decent air movement in the roof.
Somehow most homeowners are unaware of the problems that will be cause by having an inadequately ventilated roof. Repairing these problems can be quite expensive and it can pose a health risk if not addressed immediately. The problems associate with heat and moisture level build up are many. Here are some reasons why roof ventilation is really important.
When there is heat and moisture below, roofing materials and underlayment can deteriorate, shortening the life of your roofing system.
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Moisture buildup along the underside of the roof causing the decking to become soft and can sag or fall.
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Mold and mildew can grow in moist and warm condition. Metal surfaces like nails, truss plates, and hangers can rust and deteriorate when there is moisture buildup.
Cold air in the vents can warm up because of the heat of the attic. Because of the heat, the A/C will be kept running all the time.
Cold climate can let frost settle on the underside of the roof which comes from moisture in the attic. In the summer, the ceiling can get water stained from the same moisture starting to condense.
Some signs can be seen that tell homeowners that they need to get a roofer in order to handle ventilation problems.
When heat builds up in the attic, it can cause the air in the air conditioning vents to heat up, so, the air conditioning may struggle to cool the house.
Asphalt shingles should last 10 or 20 years or more. If you start seeing curling shingles, it is a sign that the heat below is deteriorating the shingles prematurely.
One other sign is water stains on a solid roof. Ceilings are stained because built up moisture in the attic can condense and drip to the ceiling.
Mold and mildew in the attic means that there is a problem with the ventilation.
Something should be done if there are signs of inadequate roof ventilation. If you fail to address this problem, then expect to have a shortened roof life. It can also encourage the growth of mold and mildew and you can expect your electric bills to increase dramatically.
The best way to correct roof ventilation is through the services of a professional roofer. An understanding of how the roof works even though it may seem easy to get air circulating through the attic is necessary. You can cause major damage if you make a mistake in your ventilation attempts.