Roof Attic Ventilation Extreme hot temperatures can affect roofing shingles negatively when installed incorrectly with the wrong accessories. One important part of the any roofing system is the attic ventilation. Attic ventilation should be taken into consideration when pricing a roof replacement. Yes, it will increase the initial cost of a roof replacement but it will extend the lifespan of a roof by a decade. There is more than just making sure that you home has a power roof vent to ventilate the attic space. Soffit intake is an important part of any roof replacement. For every square inch of soffit intake there should be the same square inches of ridge vent based a formula indicated in the local building code. Some jurisdictions require the 1/300 rule while others require the 1/600 rule. It is the responsibility of the roofing contractor to be familiar with this rules and make sure to apply them when replacing a roof. It does make a difference if the roof is asphalt shingle, metal, slate, cedar shake, or any kind of synthetic roof. For ventilation helps with any type of roof. A good ventilation system will help the entire building envelope. It can help to reduce the cooling cost during the summer while maintain a moisture free environment during the winter. Having said all that about ventilation, it very important not to overdo it. Having too much ventilation in the attic space can create condensation problems caused by harsh changes in temperature. Like everything in life, ventilation must be balanced between the soffit intake and the ridge vent exhaust in combination with the building size and use. Yes, the use of a building is important with calculating the ventilation because a house is not the same as a free standing garage without any insulation. Call us today 910-685-7102 for a free estimate on a roof replacement.
