Many pros shingle in a vertical line up the roof because it s much faster.
Putting new shingles on roof.
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.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
The complexity of the roof.
Repair is costlier on a per square foot basis because it is more time consuming to integrate new shingles into a roof here and there than to install them over the entire roof.
The first thing you need to do when figuring out how to put shingles on a roof is to determine which type of roofing shingles you need.
If more than about 35 of your roof is going to need repair due to wind or hail especially if it s already 12 years old the cost effective decision might be to replace it all.
When old shingles are torn off new roofing paper starter shingles ridge vent and moisture barrier are installed.
Ranch homes for example are much easier to roof than tudor or victorian styles.
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.
To start installing shingles line up aluminum drip edge flush with the edge of the roof and make a pencil line at the top on each end of the house.
Chances are your roof structure was designed for a dead load of one layer of shingles plus extra for snow and a safety margin.
Installing new shingles yourself can save considerable time and money and you can follow the same steps they do to achieve the same professional look.
The more peaks valleys skylights and other obstacles the roof has the higher the installation cost will be.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
Using the chalk line snap a line between the two marks to get a straight edge.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Repeat this on both sides of the roof.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
Re doing the shingles on your roof can help keep your house in good shape keeping your family safe and protected from the elements.
Every 5 inches make a new mark until you get to the rop of the roof.
If you need to redo your roof you might be tempted to save some money by having another layer installed over the existing shingles.