Why an Attic Should Be Ventilated and Insulated

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Why an Attic Should Be Ventilated and Insulated

attic spaceAn attic should be both ventilated and insulated to keep it colder than the rest of the house. Adding insulation to the attic and allowing cold air to enter it at the same time is a key to creating an energy-efficient house. This can prevent major problems, including rotting roofing materials and ice dams, that could be expensive to repair.

Reasons to Ventilate and Insulate an Attic

Attic ventilation is especially important in cold regions to allow warm, moist air to escape. If the attic is not ventilated, the warm air can cause condensation on the underside of the roof sheathing, which can lead to rot.

Ventilation also reduces the chance of ice dams. They form when warm air from the house escapes through the attic and melts snow on the roof, which then flows down the roof and refreezes in the colder eaves. Ice dams can cause roof leaks and can make gutters fall off the house because of the weight.

Ventilating the attic can keep the house more comfortable in the summer. Ventilation allows natural airflow on hot days so that warm air can exit the attic. This removes moisture and protects the roofing shingles from rot.

Ventilating the attic will not allow cold air into the house in the winter. The living space is insulated at the attic floor to keep cold air out of the rest of the house. Insulation also blocks warm and moist air from entering the attic from the living space in the house below.

Attic ventilation may be required for certain types of roofs. With asphalt shingle roofs, the manufacturer requires the attic to be ventilated. Not doing so will void the warranty.

Types of Attic Vents

A combination of different types of vents can be used to make sure an attic has enough ventilation and airflow. If a house has only small gable-end vents or a ventilator set high in the roof, soffit vents can be added to increase airflow. Soffit vents allow air to enter the attic along the underside of the eaves, which is the lowest part of the roof. Soffit vents work best with a continuous ridge vent.

Get a Quote for Attic Ventilation or Roof Repair

If you have experienced problems with ice dams in the winter or rotted roofing materials, it could be because your attic is not properly vented and insulated. Ventilation and insulation are keys to a long-lasting roof.

Connecticut Shingle Installers has worked on many roofs for homeowners across Connecticut. We know the best ways to ventilate roofs to prevent ice dams and damage caused by condensation. If you need a quote for attic ventilation or roof repair or replacement, contact us today.

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