Roofing Installation Articles

#37 – Fasteners and Metal Roofing

May 3, 2017

When investigating a metal roof for your home, you’re likely to hear about exposed fasteners and concealed fasteners. The terms are self-explanatory, but which is better? Some metal roofs are designed so that all of the screw heads are exposed. They are visible and exposed to the weather. Other products are designed with concealed fastening… ( read more )

#33 – Chimneys and Metal Roofing

April 26, 2017

One of the positive benefits of a properly installed metal roof is that it will be flashed in order to be watertight against roof penetrations such as chimneys, skylights, and dormers. Shorter term roofing systems are often just sealed in those areas, with the assumption that the sealant will last as long as the roofing… ( read more )

#31 – Should a Metal Roof be Installed Over Battens?

We frequently are asked whether metal roof should be installed on batten’s or direct to the roof deck. By design, some metal roofs must be installed over battens, some must never be installed over battens, and some can be installed over battens or over solid decking. So first and foremost, it’s critical to choose the… ( read more )

Is OSB Acceptable as Roof Decking for Metal Roofing?

April 3, 2017

Oriented Strand Board, commonly referred to as OSB, is a type of engineered lumber similar to particle board, formed by adding adhesives and then compressing layers of wood strands. OSB is widely used as roof decking material. A homeowner recently wrote and asked me the following regarding OSB roof decking: Q. We are checking into a metal roof and we have a question… ( read more )

#29 – Skylights on Metal Roofing

March 31, 2017

Normal types of protrusions through the roof such as skylights and chimneys do not pose a problem for metal roofs. They need to be flashed and detailed properly and quality metal roofing manufacturers will have instructions to help installers with that. Skylights must be curbed, not flush-mounted with any metal roof. If there are existing… ( read more )

#28 – Minimum Roof Pitch with Metal Roofing

Most residential metal roofs require at least a 3:12 roof pitch and have no maximum roof pitch. That means there is at least 3” of vertical rise to the roof slope for every 12” it goes back horizontally. That is a 14 degree angle. Mechanically seamed standing seam metal roofs, commonly used on large warehouses… ( read more )