Attic Fan Vs Adding More Insulation

Affix rigid foam insulation to the attic side of the hatch or door.

Attic fan vs adding more insulation.

Replacing that with a pretty good efficiency new window will bring it up to an r 3 or r 4. I was looking at getting insulation blown in as well as potentially adding an attic fan gable mounted and then i saw some articles online about radiant barriers. Get the basics in your attic right and you will not need to invest in radiant barriers attic fans or more insulation. In the last several decades building codes have called for increased attic insulation.

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. As it turns out because the insulation slows heat from moving down into the living space homes with well insulated attics don t see a significant reduction in their cooling load when they add attic ventilation fans. So the ac was leaking into the attic and the insulation is awful energy bills were high to boot. Instead of spending money on radiant barriers attic fans or levels of insulation above an r 40 investing duct sealing and shade screens would make more sense.

There s a handy chart on the chicago conservation corps blog. If i add an electric solar attic fan to my roof i can help pull out more hot air from the attic and it will be cooler. About attic ventilation natural attic ventilation. Fans can cause increased loss of conditioned air.

However if your soffit vents are dirty or clogged then you will have little to no airflow through the attic. More is not always better. Attic hatch or door. The thought process goes something like this.

At first it may seem odd to add insulation for warmth and then purposely allow cold air to enter the attic through vents but this combination is the key to a durable and energy efficient home. Is it more cost effective to install an attic fan or add additional insulation when the sun shines on your roof the dark shingles assuming that you have a shingled roof collect the. That s not a huge increase in the insulating value of the window especially given the cost to replace. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.

More ventilation is always better. Pull down stair or ladder. Fans fences fireplaces. There are also dissenting voices who say that the benefits of ventilation are.

Adding a storm window brings it to an r 2.