Installing a new vent and walking on my metal roof

Guest User
6/8/2002
I have a metal roof on my house that resembles tile. I want to install a new vent for a bathroom exhaust fan. The roof panels are tightly layered such that I don't believe I can slip the flashing of a vent underneath the uphill roof panel. Do I simply use plastic roof patch to insure a leakproof installation. Any tricks? ALSO does anyone have any suggestions for walking on this roof. It requires CAREFUL placement of your foot on the seams....very hard to get around and maintain balance when restricted to walking on the seams only....many panels dented from other careless workers before me. I don't believe the Korkers (shoes) would be adequate to prevent denting. Would stepping on small pieces of plywood possibly covered on the bottom with a traction aid work?
Todd Miller
Classic Products, Inc.
6/8/2002
Not knowing exactly what product you have on your home, it's a little tough to give good advice on the walking issue. Normally, though, I would walk on the areas of the profile which are closest to the roof deck. This, in all likelihood, would not involve the seams. Yes, you could place planks or plywood on the roof. Preferably, use old carpeting or foam insulation or furniture foam underneath the wood. When you walk on the wood, then, your weightload will be dispersed. As for putting in the vent ... this really depends upon the profile of roof you have. Do you know who the manufacturer was? Can you contact them for instructions? Also, you might find it simplest just to get an experienced metal roofing contractor to do the work. In some cases, it might work best to "box in" the vent and actually mount it a little bit above the roof level -- that way you're flashing around an evenly shaped box rather than a vent. Well, let me know how I can help further. Any information on the product that you have on your roof would be very helpful.
Allan Reid
Dura-Loc Roofing Systems, Inc.
2/18/2003
I'M CONFUSED ON SOME OF THE Q & A THAT I HAVE BEEN READING. MY QUESTION IS THAT I'M FIXING TO HAVE VERTICAL PANEL METAL ROOFING INSTALLED OVER MY SHINGLE ROOFING. THE CONTRACTOR STATES THAT HE WILL TAKE OUT THE 4 EXHAUST TURBINS THAT ARE ON THE ROOF NOW, HE STATES THAT I WONT NEED THEM ANYMORE.MY CONCERN IS THAT WILL MY HOME GET TO HOT IN THE SUMMER AND TO COLD IN THE WINTER. I LIVE IN LAKE CHARLES LA. SHOULD THE TURBIN VENTS STAY???
Todd Miller
Classic Products, Inc.
2/18/2003
All attics, unless they are completely sealed with a a vapor barrier and insulation, need to have positive ventilation. The ventilation helps keep the house cooler in the summer and, in northern climates, helps to avoid ice damming in the winter. In all seasons and all climates, it helps to avoid an unhealthy and potentially very damaging buildup of moisture in the attic. Positive ventilation requires intake and exhaust vents. Typical construction design has intake vents in the soffits (overhangs) and then exhaust vents near or in the ridge (peak) of the roof. In some cases, particularly on homes without overhangs, cross ventilation can be achieved somewhat through gable vents and power fans. If your turbines are being removed, the installer needs to do something else to achieve positive ventilation.
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