Proper Attic Insulation And Ventilation

Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents.

Proper attic insulation and ventilation. Proper attic ventilation natural ventilation. To prevent this follow the air sealing and insulation strategies in this guide and make sure the attic is well ventilated using passive vents and natural airflow. A radiant barrier is a high performance product that comes in a foil or spray insulation. The main purpose of attic and roof ventilation is to expel solar heated hot air from the attic to lessen your home s cooling load.

In the last several decades building codes have called for increased attic insulation. By using proper attic insulation and a radiant barrier you can deflect up to 97 percent of the sun s rays. When you use this you are blocking not only the hot summer heat but the cold during the winter months. You can also contact your local municipality to check on building code in your area.

Most experts contend that a well ventilated attic keeps the house more comfortable in summer and guards against moist heated air building up in winter. It may be a bit odd to just add insulation for warmth and then just allow cold air to get into your. Doing the job yourself. At first it may seem odd to add insulation for warmth and then purposely allow cold air to.

For the best results place roof ventilation near the roof s peak and soffit vents in the eaves. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Air flows in through the soffit vents and out through the roof vents. An attic fan is used to cool down a hot attic by taking in cooler air from outside through attic vents.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. Grab a flashlight and inspect your attic during the winter.