Installing New Roof Over Existing One

Installing a new roof over an existing one can only be done if you have shingles because you can only put shingles over shingles.

Installing new roof over existing one.

This provides a safer environment for both workers inside the building and the roofers as they install the new roof. Roofing over your existing roof is not always possible. Replacing a roof can be expensive but if a roof contains only a small slope it s possible to raise the roof pitch of a house by building a roof over the old one. Sounds simple enough right.

Chances are your roof structure was designed for a dead load of one layer of shingles plus extra for snow and a safety margin. But you must take care to install shingles correctly so they lie flat. Why installing new shingles over old shingles can be good. When you should tear off your roof and start from scratch instead.

You can save. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option a properly installed layover roof can look and function as well. Let s start with the good. When roofing over your existing shingles can be a good idea.

This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles. Please click show more below to know. When you recover your old roof stays and the new roof gets installed on top. By using roof huggers the existing roof can be left in place.

Finally i had time to put the video clips together. Installing new roof shingles over old effectively doubles the weight of the roofing so you have to make sure your roof structure can handle the extra load. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. It is not possible to mix materials nor to install a new layer over slate or wood tiles.

With the existing roof left in place there are typically no leading edge safety issues. Four years after installing my new shingles they re still nice. And a good job involves installing new flashings rather than relying on the existing ones. 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.

Reroof jobs are sometimes done without replacing flashings. With a traditional roof replacement we completely tear off your old roof and install a shiny new one in its place.