Standing Seam Metal Roof Over Shingles
The second way to install a metal roof over a shingle roof is with the use of purlins or battens.
Standing seam metal roof over shingles. Advantages of metal roofs over shingles. Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. Metal roofing types metal is light energy efficient and durable. In contrast steel shingles are small panels installed in horizontal rows much like other shingles.
Mcelroy metal has introduced a method for installing standing seam metal roofing directly over asphalt shingles without a tear off. Complete and separate roofing systems such as standing seam metal roof systems that are designed to transmit the roof loads directly the buildings structural systems and that do not rely on existing roofs and roof coverings for support shall not require the removal of existing roof coverings. This makes it a versatile and appealing product. This framework has three big advantages.
This method has its benefits as well. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles. Disadvantages of metal roofs. Better steel shingle systems like the one shown install over a framework of 2x2s.
The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for their roofing panels and then the metal is installed to the purlins. A contractor can minimize the appearance of edge creep by using lap flashing hemming exposed edges when possible or using a paint pen on visible cut edges. The main challenges when installing a metal roof directly over shingles with no underlayment are clip alignment and abrasion on the underside of panels. Installing metal roofing over shingles is the best solution.
This framework has three big advantages. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. The metal used for the roof can be tin copper aluminum or steel. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
The system is designed around the patent pending 138t shingle recover clip and 138t symmetrical standing seam panel. Better steel shingle systems like the one shown install over a framework of 2x2s. It comes in a variety of formats and designs including shingles standing seam wooden shake and tile. By placing metal roofing over shingles you can save in the labor costs of ripping them off while also preventing them from being thrown into landfills.