Visit a local hardware store and purchase the things you will need. Invest in quality flashing, counter flashing, shingles or panels, coating layer and roofing tools.
Use a shingle in order to get the look of a roof system before choosing it. Since there is a wide variety of colours and design patterns that you can choose from, experiment a bit and come up with a colour and pattern of your choice.
If you plan to use diversified contours, it would be a good idea to use a panel instead of a shingle. Panels made of copper or steel are less expensive and recyclable as compared to other panel types.
Ensure that the shingle you choose is easy to install and has an aluminium interlocking system because such shingles provide better roof protection.
A possible way to save money on the required materials is to contact a manufacturer or dealer. You might also find installation assistance from the company.
Be sure to purchase metal shingles or panel brands with a proven track record. You might have to initially spend more at the start; however, you will save money in the long run because good quality materials last longer.
Install new metal shingles over the old roof. Be sure to consult the manufacturer to check if that is possible.
To prevent water from leaking into your home, consider attaching starter flashing. In order to attach secure flashing strips to the roof, nail them into the fascia trim-board.
For better drainage and neater overall appearance, the roofing system you install should have hidden gutter channels.