If you live in an older home, you may think that your attic is doing its job if it's insulated. The truth is that condensation in an attic, caused when hot and cold air meet, is a common problem that can cause roof damage if left unchecked. The type of damage includes warped plywood on the roof and splintering rafters. The good news is that these tips can help prevent condensation and keep your older home's roof in great condition.
Tip 1: Have the Proper Insulation Installed
Call your roofing contractor to check the insulation in your home. Have them replace it if it's not up to code or at the suggested R-value for your area. This all depends on the climate and may be different in one portion of the country than in others.
The right insulation helps to keep out both cold and warm air, thus preventing rising warm air from meeting sinking cold air, and vice versa.
Tip 2: Have a Solar Attic Fan Installed
Save your attic from condensation and save money at the same time by having a solar attic fan installed. These fans obtain their energy from the sun and keep your attic cooler by drawing the hot air up and out of the attic. Without some sort of attic fan, your air conditioner and heater has to work harder to cool or warm your home.
The roofer installs the attic fan between the rafters. One portion of the fan is in the attic and the other is on the exterior portion of the roof. They operate on an as-needed basis automatically, so you don't have to worry about turning them on or off.
Tip 3: Have Attic Foam Vents Installed
Many older homes do not have vents in the attic to allow hot or cold air to escape on its own. Roofers install foam vents between the rafters, or you can slide them into place yourself and then staple them to the rafters.
Foam vents work to circulate the air nearest the underside of the roof. With the air circulating, there is less of an opportunity for cool air to mingle with warmer air, creating condensation.
Choose one or more of these tips to prevent condensation in your attic and damage to your roof. Ask your roofer for other ideas on preventing your older attic from creating structural damage to the roof, rafters and other home-stability materials due to condensation. For more information, contact Homestreet Roofing Inc. or a similar company.