Put Shingles Over Old Roof

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.

Put shingles over old roof.

Looks just as good and lasts as long. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles. But before we get started one thing must be clear.

The trick is to never lay a shingle over the bump of an old shingle but always fill in the flat up to the next shingle and always glue down the shingles on the edge of the roof so that the wind will not catch. 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. We discuss the nesting method which helps minimize an uneven appear. Old shingles in north america were in inches.

The felt should be secured every six inches with nails or staples. It is not possible to mix materials nor to install a new layer over slate or wood tiles. Has the same manufacturer s warranty. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.

Step 3 cover the old shingles. In fact the only pro to a shingle over is it s cheaper and cleaner. Should old shingles be removed before new installation. In this video we provide details on how to install roof shingles over existing shingles.

Damaged decking will need to be repaired before you can install any new shingles. Hence we are mixing sizes and nothing fits perfectly. Installing a new roof over shingles takes less time than tearing off the old roof. Install a layer of roofing felt over the roof before you begin installing the new shingles.

Installing a new roof over an existing one can only be done if you have shingles because you can only put shingles over shingles. 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. Damaged shingles should be removed to check the decking for problems. New shingles in canada are metric.

Although it sounds like a good idea we can assure you the cons heavily outweigh the pros. Manufacturers will still. Another reason is curling shingles as you can only install a new layer if the first one is completely flat and level.