As a trusted team of roofers servicing Roxborough, PA, Philly Roofing understands the increasing popularity metal roofing has thrust it into the mainstream, positing it as a viable option for residential and commercial applications alike. While there are plenty of benefits of installing metal roofing for your home, we’re here to give some architectural insight, speak plainly about what you can expect, as well as address a few misconceptions.
Metal Roofs Can Be Installed Over Existing Roofs
Provided local building codes allow it; metal roofs can be installed over a roof without having to tear off shingles. While shingle removal is an ideal route, tear-off is messy and raises the job’s cost. A potential problem with this installation method is trapped water vapor. If moisture is caught between the old surface and the new metal roofing, it can build up and cause mold and rot. Our roofers can install a vented metal roof that works to eliminate this issue. Or, installing the metal roofing over furring strips will raise the material and provide a pocket for air ventilation between the layers. It’s crucial to consult local building codes before putting a metal roof over your existing one, as some jurisdictions might require a full tear-off whenever a new roof is installed.
Metal Roofing Isn’t Noisier Than Asphalt
Some think that metal roofing might clang and boom when heavy rain or a bit of hail falls on it. The reality is that when properly installed, metal roofing isn’t any noisier than any other type of roofing. The metal is typically installed over a solid substrate, and the attic and insulation function as a sound barrier as well. When it comes to interior living spaces, people rarely notice an increase in sound levels after a metal roof installation.
Metal Roofs Don’t Attract Lightning
You might suspect that a large metal roof will attract lightning, although this assumption is generally unfounded. According to the National Weather Service, “the presence of metal makes absolutely no difference on where lightning strikes.” The misconception stems from the fact that metal conducts lightning, yet since metal roofs are isolated structural components, there’s no direct path to ground in the design. If metal does get struck by lightning, it’s still less combustible than other conventional roofing materials like wood shakes or shingles.
For information about metal roofing near Newtown, PA, contact Philly Roofing today!