What is the best way to keep your attic cool?

Asked By: Carlotta Garma | Last Updated: 31st May, 2020
Category: home and garden home appliances
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To head off these problems, consider these options for bringing your attic's temperature down:
  1. Install electric ventilators and attic fans, which remove hot air from an attic.
  2. Alternatively, install passive vents such as gable, soffit and ridge vents, which are openings in the roof that allow hot air to escape.

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Keeping this in consideration, how can I reduce the heat in my attic?

4 Ways to Reduce Attic Heat in Your Home

  1. Seal spaces around plumbing, recessed lights and vents. Your attic can get as hot as 150 degrees in the summer.
  2. Install adequate insulation. Start by examining the insulation that is already in your attic.
  3. Install gable vents.
  4. Get an attic fan, and have it serviced regularly.

Also Know, does cooling the attic help? Attic ventilation works best in mild to cold climates. In hot, humid climates, ventilation will not keep an attic cool, although air circulation combined with an attic fan can help reduce cooling costs.

Keeping this in view, how can I keep my attic cool in the summer?

How to Cool an Attic

  1. Cover windows.
  2. Install an attic fan.
  3. Install ridge and soffit vents.
  4. Install a mini split.
  5. Use a window AC when the attic is going to be used.
  6. Use a portable AC when the attic is going to be used.

Can you have too much attic ventilation?

More Attic Ventilation is Good Insufficient ventilation can lead to moisture problems during the winter and decreased energy efficiency during the summer but too much ventilation can be just as bad, if not worse.

37 Related Question Answers Found

What is the best way to ventilate an attic?

For the best results, place roof ventilation near the roof's peak and soffit vents in the eaves. Air flows in through the soffit vents and out through the roof vents. Vents come in various styles. We chose rectangular, hooded roofing vents and rectangular soffit vents because they're easy to install.

What happens if your attic gets too hot?

When it's hot outdoors, it's hotter in your attic. A hot attic is bad for several reasons. High temperatures inside your attic shorten the life span of shingles. Excessive heat deteriorates items you store in the attic and can cause moisture problems in your house.

Is a hot attic dangerous?

In the summer, attics can overheat. In fact, it's not uncommon for a 90-degree to translate to temperatures 30 or 40 degrees hotter in the attic. That's dangerous because the extra heat can damage roof tiles and any items you have stored in the attic.

Why is my finished attic so hot?

With enough exhaust vents and intake vents, your attic has breathing room and is better cooled. Another reason your attic is so hot is because of insulation. Not the overabundance, but the lack of insulation in the attic. Make sure you look at your attic's vents and insulation to determine why your attic is so hot.

What temperature should my attic be in summer?


Attics can reach temperatures of 150 to 160 degrees F during a summer day, although outside air temperatures are only 95 to 97 degrees F.

Does opening attic cool house?

Its best if you can arrange a ventilation fan to the attic space or open the window/vents if you have in attic. This will allow to cool down the temperature of air within the attic apace and ultimately will provide better insulation to heat. Your attic acts as an insulation between the terrace and the living room.

How much does it cost to turn an attic into a room?

The average attic renovation cost is $40,000-50,000 to convert it into a living space, such as a bedroom, office, or a bathroom. While finishing an attic is one of the more expensive home improvement projects, it also boasts one of the highest ROI's.

Will an attic fan help cool my upstairs?

The installation of an attic fan will help to move all of that hot air back outside, thereby lowering your attic temperature by up to 60 degrees. With a cooler attic there is less heat overflow into the upstairs of your home. According to atticfans.com an attic fan: Lowers upstairs room temperatures by 10º.

Does attic insulation keep house cooler in summer?

Once you get control of the attic temperature, insulation keeps rooms at a consistent temperature. It keeps the cooler air down where you want it in the summer, and keeps heat from escaping in the winter. But if you control the attic space well, you might not need as much insulation.

Why is my attic cold in the summer?


Many attics contain ductwork that supplies cool air to upstairs rooms during the summer and heated air during the winter. If the joints in your ductwork are not properly sealed, your forced air system can suck attic air into the ducts –air that's either really hot in the summer or really cold in the winter.

Should Attic be same temperature as outside?

Your attic should ideally be the same temperature as the outside air, at least at the roof deck. The ice damming is caused by heat at the ridge melting the snow and having it freeze when it gets to the lower part of the roof, which prevents it from draining.

Can you put AC unit in attic?

Aesthetically and practically speaking, a bulky AC system in a small space like an attic is not only ugly and obtrusive, but will also take up a space and even a sizable amount of elbow room. In terms of energy-use, room air conditioners are not known for efficiency as well. They consume to much energy.

How do I keep heat from going upstairs?

Use negative ventilation to move heated air out of the downstairs and vent it outside. Mount window fans to circulate air out of the house from the downstairs. Open upstairs windows to facilitate the air circulation, and the negative ventilation achieved downstairs will literally pull the upstairs air downward.

How much hotter should the attic be than outside?

Ideal attic temperatures shouldn't be more than 10 to 20 degrees hotter than outside temperatures. If your attic soars above 100 degrees and reaches the 150 mark, its time to consult professionals to ensure your attic is properly vented. High attic temperatures put a huge strain on your air conditioning system.

How can I make my attic livable?


When converting an attic to a living space, it must meet the same building requirements as the other rooms in your home. To meet most building codes your attic should: Have at least 7 feet of vertical clearance in the majority of the room, be a minimum of 7 feet wide and have at least 70 square feet of space available.

How do I put stairs in my attic?

Chalk a line between the two sides to complete the guidelines for the cut.
  1. start cut by lightly tapping blade into drywall. Cut the Square.
  2. attach header board using pneumatic nail gun. Cut and Attach Header Boards.
  3. hoist stair assembly into attic with support board.
  4. extend ladder to floor and add adjustable feet.

How do you seal an attic?

Seal small gaps.
  1. Form an insulation dam. Form an insulation dam to prevent insulation from contacting the flue pipe.
  2. Find attic bypasses. Check for gaps in your attic that facilitate air movement by checking for dirty insulation.
  3. Fill holes with caulk.
  4. Stuff gaps with insulation.