Attic Ventilation In The House

It s believed that good ventilation in the attic will help prolong the life of shingles by reducing heat which maintains the shingles quality and durability.

Attic ventilation in the house.

Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. That s how a house breathes. Cedar wood rectangular louver vent. Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation.

Intake vents located at the lowest part of the roof under the eaves allow cool. Soffit vents bring in cool air and roof vents let out warm air. Heat in the attic can roast shingles from below causing them to wear prematurely. Air flows in through the soffit vents and out through the roof vents.

However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. This product measures 16 in. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the manufacturer s warranty.

Use this tool to estimate the ventilation needs for your attic and get a list of broan attic ventilation product that will meet your needs. Attic ventilation estimating tool. Another important element of attic ventilation is protection for the roof s shingle. In other words the entire vent opening doesn t count as vented space.

These simple easy to install vents let cool air come in to replace the hot air in your attic which escapes through either a roof mounted vent or a gable mounted vent. Don t avoid ventilating your attic for fear you re letting cold air into the house. That said air resistance and interference such as vent grates reduces the area of true ventilation. For the best results place roof ventilation near the roof s peak and soffit vents in the eaves.

Get started indoor air quality iaq poor indoor air quality can have a negative effect on your home. Your actual living space is sealed and insulated at the attic floor the attic is outside this envelope. Replacing your bathroom fan range hood or even installing a new fan. Provide ventilation for your chosen location with the provide ventilation for your chosen location with the al s millworks 16 in.

Ventilation can be accomplished using various products and techniques. Most building codes require a ratio of 1 150 ventilation space to attic floor space. Wide and is made of western red cedar. More product details close.

If you see dampness or frost you need better roof ventilation and some attic vents. Grab a flashlight and inspect your attic during the winter.