We are installing an under roof ventilation system with a standing seam metal roof on an older farmhouse in Culpeper VA from the early 1900s.

I recorded a video on-site that I have put a link to below.  I show in the video the under roof ventilation system before the metal roof has been installed, and how we are able to allow the air to flow through the drip edge that we custom make on the job site.  The ventilation panels are about the size of a sheet of plywood and go down on top of a radiant barrier that we install first over the roof deck or skip sheathing.  The Ventilation panels are called Therma-Vent.  These panels allow for the roof to vent air through channels that run vertically up the panels and then the air escapes through a vented ridge cap.

Please take a look at our video and below and contact us for more information about metal roofing and our under roof ventilation system.

AlphaRain.com

540-222-1642

Here is the video that we recorded in Culpeper Virginia about the on-site job where we are installing the roof ventilation system with a metal roof.

https://www.youtube.com/watch?v=X_68aiR1q0E

Blog By Paul Dysart with Alpha Rain Metal Roofing

 

There are 3 ways to transmit heat:

• Direct heat transfer-think of a tea kettle on an open flame
• Convective heat transfer- think of a turkey in an oven where the hot air cooks the turkey
• Radiant heat transfer- think of popcorn in a microwave

Our new Radiant Therma Vent roof ventilation system addresses all three. The Radiant Therma Vent panel acts as a thermal bridge to stop the direct heat transfer. The air ventilation we introduce into the radiant Thema Vent system stops the convective heat transfer by ventilating the hot air out of the ridge and pulling in the cool air from the eave area. This system even vents the hot air from the attic. The use of a Radiant barrier stops the radiant heat transfer. This radiant barrier is so intelligent that in the winter it stops the radiant heat from leaving your house!

This system is only available from Alpha Rain, your metal roof specialist. We will be happy to show you a prototype of this system and actually take apart a portable mockup of a section of roof. We will also show you on a digital photo what your home will look like with a metal roof ventilation system. We can even show you different roof colors so you won’t be guessing what color will look best. See all these new technologies on our website at AlphaRain.com

To vent the roof below the Widow’s Walk we installed a vented J channel. As you can see from the photo there is a plastic mesh between the roof deck and the j channel to allow for the hot air in the attic to escape. We then slide the standing seam roofing panels into the j channel and we trim out the connection between the j channel and the Widow’s Walk with a counter flashing.