Installing roof shingles can be an arduous task and should not be attempted if you dont know what you are doing. It is vital to ensure that you complete adequate roof preparation before installing roof shingles otherwise you are risking the integrity of your new roof. A poorly prepared roof can quickly lead to holes and cracks that will in turn to lead to a leaking roof. Obviously the first part of your roof preparation before installing roof shingles is to rip off the hold or damaged shingles that you are replacing. While it is possible to leave these on if they are showing any signs of damage or wear you should replace them whenever possible.
Secure the roof boards
If you are using the same roof boards without replacing them you really should check each and every one to make sure none of them need replacing. Make sure they are all securely fastened down to prevent any damage to the lining or to the shingles. You also need to make sure there is no debris lying around because this too can cause damage to your new roof. Make sure no nails or other objects are protruding out of the roof.
Installing the drip edge.
Install the drip edge around the eave...