Installing new roofing without removing your old shingles could mean missing soft spots or other signs of deterioration. Installing new material over faulty roofing can cause sagging and necessitate premature repairs.

Roofing projects produce lots of scraps, which means it’s important that your pro has a plan to tidy up, both during and after the job. Be sure your pro picks up smaller items as well. Leaving trash like nails outside of your home can pose a danger to small children and cause flat tires.

Note: Trash containers can crack asphalt and damage your landscaping. Outline the best place for a container before your pro has it delivered.

Storing lumber, hardware and heavy building materials in the wrong place can damage gardens, grass and trees. Highlight sensitive areas and ask how your pro plans to keep them safe. Ask about vehicles in your yard as well. Unexpected traffic can cause ruts and crack walkways and patios.

Roofing replacements and repairs expose the interior of your home to the elements. Failing to protect these areas during inclement weather can cause extensive damage and job delays. Be sure your pro plans to use tarps, plastic sheeting or other waterproofing methods to keep your home safe. Additionally, ask whether your pro will inspect your home during rain or snow to ensure the covering is working.

Drip edges are pieces of aluminum that ensure water runs into your gutters rather than behind them. These are important in avoiding roof rot and issues like fascia deterioration and foundation damage. Drip edges are not always standard in roof repairs or replacements. Ask your pro whether they’re included in your job.