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.
Reroof or new roof.
The process of installing an additional roof covering over a prepared existing roof covering without removing the existing roof covering.
Roof repair or replacement is a costly endeavor.
If your home already has multiple layers of roofing on it you may have to do a whole new roof which is much more expensive because the old roof has to be repaired first.
If your home has any of the following a re roof is necessary.
Existing roofing is in very poor condition.
According to thisismoney a well constructed roof has a 63 roi.
In most cases re roofing is an option if the existing roof is damaged beyond repair.
Reroofing is the process of layering one set of new shingles over a set of existing shingles.
However you don t have to feel overwhelmed or alone.
Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.
The process of recovering or replacing an existing roof covering.
Re roofing will help raise your selling price and sell your house faster.
Homeowners tend to reroof their house if any of the most common problems below apply to them.
If there are only certain sections of your home s roof that need repair you can do a partial re roof.
What are the benefits of re roofing.
Existing roofing has bad decking.
Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles.
For people living in high rain areas it is very important to realize that a damaged roof can cause many problems because of loose tiles and holes in the roof.
A new roof is a great investment that always pays off.
Often the financial aspects of installing a new roof or repairing your existing roof are so overwhelming that a healthy roof may seem like an impossible goal.
It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you.
A roof replacement can be expensive and if the support structures in the roof need to be replaced that will only increase the costs further.
The quote includes pulling a permit removing old roof shingles inspecting sheeting boards and replacing boards at 50 00 per 4 x8 sheet or 5 00 per board foot installing new drip edge replacing metal flashing on chimney electrical mast flashing new pipe flashing installing new baffled ridge vent and disposing of all debris.
The cost of materials alone range from 3 240 to 10 800 depending on the size of your roof.
The total cost to reroof a house with new shingles is between 4 707 to 15 690 which includes old roof removal new roofing materials and professional installation.
But before we get started one thing must be clear.
You can only do a partial re roof so many times before you re likely to get an uneven slope.
In addition most experts will agree that overlay will not last as long as a new roof.
Existing roofing has bad incompatible shingles.