Put Shingles Over Old Roof

New shingles in canada are metric.

Put shingles over old roof.

Install a layer of roofing felt over the roof before you begin installing the new shingles. We discuss the nesting method which helps minimize an uneven appear. Damaged decking will need to be repaired before you can install any new shingles. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

The felt should be secured every six inches with nails or staples. Old shingles in north america were in inches. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Manufacturers will still.

You can t do it with wood or slate for example and you should never mix materials such as laying asphalt shingles over cedar shakes. Another reason is curling shingles as you can only install a new layer if the first one is completely flat and level. Installing a new roof over an existing one can only be done if you have shingles because you can only put shingles over shingles. Looks just as good and lasts as long.

Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Although it sounds like a good idea we can assure you the cons heavily outweigh the pros. Has the same manufacturer s warranty. In fact the only pro to a shingle over is it s cheaper and cleaner.

Hence we are mixing sizes and nothing fits perfectly. Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles. March 11 2020 by safe harbor roofing reroofing is the practice that involves installing a new roof over an existing one. As long as it s done right and under the right conditions installing new shingles over old ones can last as long and look just as good as a complete re roof.

Damaged shingles should be removed to check the decking for problems. Step 3 cover the old shingles. In this video i take show how to proper recover an old roof and make it look like it s a single layer check it out you might find useful tips for your new. Installing a new roof over shingles takes less time than tearing off the old roof.

When contemplating a new roof many people hope to simply do a shingle over and avoid the extra cost and mess of tearing off the existing roof and starting from scratch. In this video we provide details on how to install roof shingles over existing shingles. Should old shingles be removed before new installation.