New Roof Over Existing Roof

Multiple layers of shingles can make it difficult or impossible for the nails to penetrate.

New roof over existing roof.

Once your roof is back in tip top condition you can start looking at the various roof over options. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. Inspect the condition of your current roof. Your house will probably be worth less.

The roof should be in sound. We do not want to remove the existing roof so we are proposing to build directly over the old roof. When roofing over your existing shingles can be a good idea. The most important part of any roof over is to first come to terms with the state of your roof.

I have finally confirmed that it s allowed in ontario provided the plan passes the building inspector. Let s start with the good. A layer of old deteriorating shingles can make your new roof look bad. You can save money because there s no dump fee for removing your old roofing and there s no need for additional felt paper over the old roof.

The condition of the existing roof is critical. 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. If your existing roof is fairly old there s a good chance the shingles are damaged. Another reason is curling shingles as you can only install a new layer if the first one is completely flat and level.

It is not possible to mix materials nor to install a new layer over slate or wood tiles. The new roof will be a metal roof. Premade trusses will form the skeleton of your new roof above your old roof. Use the guide we.

Why installing new shingles over old shingles can be good. Use premade roof trusses premade roofing trusses will be easier and take less time than installing a stick built roof. The cheapest option would be to leave the old roof in place and place the new rafters over the existing roof. The method of installation varies wildly.

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 you should tear off your roof and start from scratch instead. How to install a roof over an existing roof determine the feasibility. What you need power nailer or roofing hatchet tape measure roofing shovel or flat pry bar hammer drill carpenter s square straight cut tin snips utility knife chalkline broom.