Patch the roof, using asphalt shingles.

Patching should include the following steps:

• Lift the shingles in the course (row) above the damaged tiles and remove the nails holding the damaged shingle.
• Locate the damaged area of roofing paper (underlayment) and repair it, using roof cement.
• Replace the lowest course of damaged shingles first, ensuring that the existing pattern is not interrupted.
• Lift the ends of the upper course shingles above the patch area to nail the replacement shingles into place.
• Apply dabs of roof cement under each tab to secure the shingle, if replacement shingles are not self-sealing, apply.

Process/Skill Questions:

• What are the relevant safety precautions/procedures for patching a roof, using asphalt shingles?
• What are some conditions that would contribute to shingle deterioration and roofing problems?
• What tools and materials are required for patching an asphalt-shingled roof?