Brisbane Roofing

New Roofs, Roof Replacement, Roof Repairs

Types Of Roof Vents For Metal Roofs

Posted by admin on Tuesday, 23 April 2013

Example of Metal Roof VentilationA well-vented roof can help to keep your home cooler in summer and warmer in winter. It can also help to prevent the build up of moisture in your attic preventing mildew and mold and and acting as a buffer between the outside temperatures and the inside temperatures. Proper ventilation can also make your roofing materials last longer saving you money both through less repair and replacement cost and better energy efficiency.

While some of your roof vents for metal roofs should allow outside air into your attic area, others should let the inside air out. The rule of thumb is that you should have 1 square foot of roofing vent for every 150 square feet of space. Some roof vents for metal roofs should be placed low in the roof such as soffit vents, to allow the outside flow of air in. Others such as ridge vents or off ridge vents allow the air from attic to escape outside. Here are some different types of roof vents for metal roofs.

  • Soffit 
  • Half round
  • Off ridge
  • Ridge
  • Square
  • Whirlybird 
  • Lpvs

Ensure Proper Installation

In order for roof vents of metal roofs to function well and perform like they should you need to take care and insure that they are installed and sealed properly. You also need to make sure that any insulation in your attic does not cover the vents as this will prevent them from functioning properly. This is usually not a problem with newly built homes as the proper vents are put in place when the roof is put on.

However, in some older buildings, there may be a lack of adequate venting and correcting this problem may well help to solve many problems in your home. The best time to correct the problem of too few or improperly placed vents is when you get a new roof placed on your home. 

Powered Ventilation?

Some people decide to go with powered ventilation which is usually a fan that is used to push the air from the attic out and draw outside air in. While this does increase the rate of airflow, you also end up using energy in an effort to save energy. While there are some places and homes that can benefit from having powered ventilation, the average home does just fine without it. 

If you suspect that your home lacks proper air flow to the attic then speak to an expert and find out what is the most cost effective way of changing the situation.


Celebrating Over 17 Years in Business

Jones Roofing, celebrating over 17 years in the Brisbane Metal Roof & Insulation Industry

Contact Us

Jones Roofing

Phone: (07) 3374 3971

PO Box 5123
Kenmore East, QLD 4069