Metal Roof Over Shingles Or Not

Once metal roofing was found only on high end architect designed homes.

Metal roof over shingles or not.

Both metal and shingle roofs are great options for your next roofing project. Choosing to install a metal roof this way can save you some dough and garner all of the benefits of a metal roof in the humid climate of florida. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.

I always suggest a layer of underlayment between the old shingles and the metal roof. If it s slightly windy keep the steel downwind from you so a gust of wind doesn t knock you over. Metal roofs generally can run from 120 to 900 per 100 square feet one 10 foot by 10 foot area or a square of material while asphalt shingles will be between 100 and 200 per 100. A metal roof can be installed over a shingle roof but you ll need to make sure the plywood under your shingle roof is in good enough shape to handle a new metal roof over top.

They are available in a variety of colors and textures are low cost and provide a traditional aesthetic. My experience has been over 35 years and tens of thousands of installations of metal roofs over old shingles. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Not that it really impacts your question but most metal roofs today are steel or aluminum.

3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. That s no longer true. Things to know about metal over shingle roof problems.

Asphalt shingles are the most popular roofing material. Metal roof over shingles condensation. Fiberglass core or matting an asphalt coating and a ceramic or stone granule surface give this material its durability. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.

After all you ll be making a significant and long term investment. Also don t go up on the roof if it s windy.