How To Vent A Metal Roof On A House

Advantages of proper roofing ventilation.

How to vent a metal roof on a house.

The safest way of venting a metal roof is installing a roof ridge vent. Hot air beneath the metal needs an escape route near the top of the roof and intake vents at the bottom of the roof. This choice will depend on your customer s aesthetic preferences and or installation location limitations. Although there are many different types of roof vents to choose from ensuring you have the right number of both.

Choose one of the following products to meet the recommended exhaust nfva of 528 square inches. Drill starter holes if needed then scew down the vent with the fasteners in the installation kit. A roof ridge vent is a fixed vent installed on the ridge of a roof to ensure proper air ventilation within the house or building. If you have a hip roof you would either have to replace the existing ridge with a vented one making sure the roofing and sheathing at the peak are cut back so air from the attic can escape through it or mount a power vent fan on the roof itself which would require cutting a hole in the roofing.

Instead the roofers do not install the regular metal roofing over the top of the ridge but leave a gap that runs the ridge s entire length. The installation of roof vents is a crucial part of roof design because it allows for proper attic ventilation which may help prevent condensation and early aging of your roofing materials. The average recouped cost of a metal roof is 85 6 in fact compared to all interior and exterior house renovations installing a quality metal roof offers one of the highest returns on investment. Apply a layer of sealant to the edges of the hole then place the vent into position.

The lower pressure in this vacuum draws air out of the building most often through ridge vents. As long as nothing blocks the airflow between the intake and exit vents the air. Then move into the attic and apply to the underside of the opening and vent. A roof ridge vent is static but doesn t require cutting into the metal roof s middle.

Mechanical or power assisted ventilation helps draw more cubic feet of air into and out of the space per minute. Ridge vents are typically made of metal. Its also important to note that some types of metal roofing systems are considered more premium and desirable than others. Ventsure 4 foot strip heat moisture ridge vent.

The main purpose of a roof ridge vent is to optimize airflow under the roof. 27 lineal feet required.