To install aluminum strips on a roof or wall, follow these steps: 1. Measure and mark the area where the strips will be installed. 2. Clean the surface thoroughly to ensure proper adhesion. 3. Cut the aluminum strips to the required length using a hacksaw or tin snips. 4. Apply a bead of construction adhesive along the top edge of the strip. 5. Press the strip firmly into place, starting from one end and working your way along the surface. 6. Use a level to ensure the strip is straight and secure it with nails or screws at regular intervals. 7. Fill any gaps between the strips and the surface with caulk to create a watertight seal. 8. Finish with a coat of paint or sealant to match the surrounding area and protect the aluminum from weathering. Always follow the manufacturer's instructions for the specific adhesive and sealant products you are using.