Reroof Over Existing Metal Roof
We can site form several different profiles of standing seam roofs on site in continuous lengths and are a certified installer for the top roofing manufacturer systems.
Reroof over existing metal roof. A mobile home roof over creates a unique opportunity to completely change the look of the home. The use of roof hugger systems allows you add blanket rigid and or reflective insulation between the existing and new roofs. If your roof is in good shape but has some damage to one side from a downed tree or has lost shingles in a wind storm an overlay is worth considering. Yes you can install a metal roof over shingles.
Less labor is needed and there are much smaller refuse fees. A mobile home roof over involves placing a new roof or roofing material over your existing roof. This provides added protection against ice dams. Some roofers install a layer of waterproof shingle underlayment wsu over the existing shingles at the eave end as would be done for a roof laid on bare sheathing.
However installing new flashings including special drip edge flashings made for reroofing will ensure a tight seal and a long life. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. However it is important that you know the weight capacity of your roof and how many layers of shingles are currently on the roof. If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles.
This provides a safer environment for both workers inside the building and the roofers as they install the new roof. Under many circumstances it is possible to install a new metal roof over the top of existing asphalt shingles even if there are two layers of asphalt shingles. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option. There s little to no material removed which can keep costs down.
Single ply roof systems are also lightweight and utilized for retrofits over existing metal roofs figure 2. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. We have safely installed over 1000 roofs. However you ll want to check with your local building department before you make any decisions.
A properly installed layover roof can look and function as well.