Solutions for a space full of hot air
Your attic temperature in summer can climb 10 to 20 degrees hotter than your home, but inadequate ventilation traps heat and pushes temperatures past 130 degrees.
Attic insulation costs average $2,100 for professional installation, and proper insulation keeps excessive heat out during summer while retaining warmth in winter.
Dark-colored roofing materials absorb more heat than lighter options, so choosing metal, slate, or clay roofing helps reflect heat and keeps your attic cooler.
Hiring a local attic fan installation professional provides expert guidance on ventilation solutions and insulation upgrades, keeping your home comfortable and energy-efficient year-round.
Hot air rises, so it makes sense that the hottest part of the house is the attic. The attic is also directly below the roofline, and as the sun beats down, it could heat up the air inside the attic faster. Both of these things are normal occurrences, but if you’re wondering why your attic feels like a sauna, something may be amiss in the ventilation or insulation. Let’s look at three reasons why your attic is so hot and find the solution.
In a perfect world, hot air from outside would enter through the soffit vents below the eaves and then exit through vents at the roof’s peak, but this may not offer enough circulation to adequately vent the attic and cool it down. If there’s not enough ventilation, particularly near the peak of the attic, hot air can get trapped, raising the temperature to 130 degrees or more.
To solve this ventilation issue, you can add more attic vents or even an attic fan to actively draw the air out of the attic. You can hire a local attic fan installation professional, but if you have some DIY skills, you may be able to install an attic fan on your own. Ideally, an attic will have at least 1 square foot of ventilation per 300 square feet of attic space.
The impact of poor ventilation and improper insulation are closely related. A properly insulated attic can help guard against excessive heat. But if the attic isn’t insulated properly, it can cause multiple issues. In the summer months, when the temperatures are hot and the sun is at its most powerful, excess heat can get trapped in the attic creating a stifling environment. These issues are exacerbated when there isn’t enough ventilation to circulate the hot air out of the attic.
Attic insulation serves the dual purpose of keeping heat out in the summer and keeping heat in during the winter. Attic insulation costs an average of $2,100, and you may be able to DIY installation. An attic insulation professional near you, however, will be able to assess your home and recommend the correct amount as well as ensure it’s installed properly.
Darker colors attract heat, so if you have a dark roof, it will be more likely to absorb heat, allowing it to penetrate through the roof and heat up the attic.
If you’re considering re-roofing your home, go with a lighter color roofing material or consider a metal roof, both of which do a better job of reflecting heat than a dark colored roofing material. Natural materials such as slate or clay can also reflect rather than absorb heat, leading to reduced temperatures in the attic.
For a lot of homeowners, the attic is an area for storage, but often, homeowners won’t even use the attic at all, which means you may not be able to tell your attic is too hot until you see some of these signs:
Higher than normal utility bills
Roof damage
Warped wood framing
HVAC damage
If your attic is getting too hot and you’re not sure why, consider hiring a local home energy auditor who can assess the energy efficiency of your home and make recommendations for how to improve. Attics that retain too much heat can tax the home’s HVAC system, so you may also want to contact a HVAC repair pro near you to do a tune-up on your system and make sure it’s working efficiently.
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