There are many factors to consider when making the decision to recover (overlay) or tear off the existing shingle roof.
The benefits of having a roof recovered are that the costs of labor and disposal are much lower. However, there are some requirements that must be met before a roof can even be considered for a recover. If the roof meets these requirements than a tear off is not necessary.
• The roof must only have one layer. The Missouri building codes prohibit having more than 2 layers on the
• The roof must lie flat and cannot have any problems with the decking. It is also important that the roof
structure and rafters are able to withstand the added weight of a second layer of shingles.
Completely tearing a roof off is the best way to assure that if there is any chance of bad decking, it will be corrected. Many roofing professional believe that with a recover, the average life span of the shingle roof is decreased by 10-20%.
A complete tear off of the existing roofing system should be chosen if:
• There are any signs or suspicion of bad decking or soft spongy spots on the roof top.
• The existing roofing is in poor shape.
• The existing roof has more than one layer it must be torn off, as it is a code requirement in Missouri.
• Ice dams are prevalent it is important to have these issues corrected, as ice dams can cause major
damage and costly repairs.
• Incompatible shingles – Installing new shingles over existing shingles that are not flat can cause the roof
to look bumpy and can make it harder for the new shingles to form a seal. An example of this would be
installing a three tab flat shingle over an existing heavier weight architectural shingle. This will cause the
roof to appear bumpy and will show all the ridges.
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St. Louis Area Roofing Contractors proud to offer: GAF Residential Roofing, Commercial & Flat Roofing, Condominium Roofing, Free Roof Estimates, Roof Repairs, and Roof Maintenance. Our services include Shingle Roofing, Flat Roofing, Slate & Tile Roofing, Wood Shake Roofing, Gutters, Windows - Saint Louis, MO Roof Repairs, & Free Roof Estimates, Hail Damage, Hail Storm Damage. PEAK PERFORMANCE Roofing is an installer of the following shingle roofing, flat roofing, tile roofing, and siding manufacturers products: GAF -"Master Elite" Roofing, Owens Corning, Tamko, Certainteed, Performance-Derbigum, Carlisle Rubber Roofing (EPDM) & Carlisle Thermoplastic Roofing (TPO), Davinci Slate Tile, Ludowici Tile, Vande Hey Raleigh Tile, Evergreen Slate, Monier Tile, Alside Siding, Variform, Velux Skylights, James Hardie Siding, and more.
PEAK PERFORMANCE Roofing & Construction serves the following Areas in Missouri: Affton, Arnold, Augusta, Ballwin, Barnhart, Bellefontaine Neighbors, Breckenridge Hills, Brentwood, Bridgeton, Byrnes Mill, Cedar Hill, Chesterfield, Clarkson Valley, Clayton, Concord, Cottleville, Crestwood, Creve Coeur, Crystal City, Dardenne Prairie, De Soto, Defiance, Des Peres, Dittmer, Earth City , Ellisville, Eureka, Fenton, Ferguson, Festus, Fletcher, Florissant, Foristell, Frontenac, Glasgow Village, Glencoe, Glendale, Grantwood Village, Grover, Harvester, Hazelwood, Herculaneum, High Ridge, Hillsboro, House Springs, Huntleigh, Imperial, Jefferson County, Josephville, Kimmswick, Kirkwood, Ladue, Lake St. Louis, Lakeshire, Lemay, Manchester, Maplewood, Marlborough, Maryland Heights, Mehlville, New Melle, Oakland, Oakville, O'Fallon, Olivette, Overland, Pacific, Pevely, Richmond Heights, Rock Hill, Sappington, Shrewsbury, Spanish Lake, St. Ann, St. Charles, St. Charles County, St. George, St. John, St. Louis, St. Louis County, St. Paul, St. Peters, Sunset Hills, Town and Country, Twin Oaks, University City, Valley Park, Warson Woods, Webster Groves, Weldon Spring, Wentzville, West Alton, Westwood Wildwood, Woodson Terrace, and more in St. Lous Area, MO.