Keep Cool With Roof Ventilation

Posted on: 8 March 2016

Most homes have insulation along the floor of the attic. In this position, the insulation is ideally placed to prevent heat from your attic from entering your home, but it will do nothing to prevent your attic from heating up. If you live in an area that gets a lot of heat during the summer, you should do something to prevent your attic from getting too hot. Proper ventilation is usually the only step you need to take. 

How Hot Can an Attic Get?

Asphalt shingles will absorb more of the sun's energy than most other types of roofing. It is well documented that shingles can reach temperatures of over 150˚. Some of this heat will leak into your attic. A hot attic can cause problems in a couple of different ways. For one, if your hot attic is also humid, it can encourage the growth of mold and cause rotting. To prevent problems, you need to keep your attic the same temperature as the outside air. You might not be aware of how hot your attic is, but that doesn't mean that rot and mold are not present and slowly eating away at your house.

Where Do You Need Ventilation?

To properly vent a roof, you will need the right number and placement of vents. While it would be easy to place vents along the eaves of your house, this will usually not be enough. The best thing about eave vents is that, because they are placed along the underside of your roof, you don't have to worry about leaks. The problem is that hot air rises, so eave vents will not vent enough heat away from your roof. To keep your attic as cool as possible, you will also need to place vents along the ridge line. As long as you correctly install properly designed vents, you should not have to worry about precipitation leaking into your house. As for how many vents you need, you will have to talk to an architect because the number of vents will vary based on the size and shape of your roof. 

Modern homes should be built with correct ventilation, but if you move into an older home, you may need to install vents to keep your attic cool. If you have good carpentry skills, you might be able to handle the job on your own, but most homeowners will have to call a roofer to make sure that the job is done properly. Contact a company like Belgrave Enterprises for more information.