Replacing a roof is no small feat, but you can tackle it yourself with:

• The right tools
• Materials
• A step-by-step guide

This blog post breaks down everything you need to know about DIY roof replacement, from assessing when it’s time to replace your roof to ensuring your safety throughout the process.

Why and When to Replace Your Roof

There are several reasons you might need a new roof. Common indicators that your roof needs replacement include:

• Age: Most asphalt shingle roofs last between 20-25 years. If your roof is nearing this age, it might be time for a replacement.
• Missing or Damaged Shingles: Shingles that are cracked, curled, or missing can compromise the integrity of your roof.
• Leaks: Water damage in your attic or ceiling often signals that your roof is failing.
• Sagging Roof Deck: A sagging roof deck is a sign of serious structural issues and should be addressed immediately.

Tools and Materials You’ll Need

Before you start, gather all necessary tools and materials. Here’s a checklist to help you get started:

Tools

• Ladder
• Roofing shovel or tear-off tool
• Pry bar
• Hammer or roofing nail gun
• Utility knife
• Chalk line
• Tape measure
• Tin snips
• Caulking gun
• Safety harness and roof anchors
• Tarps

Materials

• Roofing shingles
• Roofing nails
• Underlayment (felt or synthetic)
• Drip edge
• Flashing
• Sealant
• Ridge vent or roof vents (if necessary)

Safety First!

Roofing can be dangerous, so always prioritize safety:

• Use a Safety Harness: Secure a safety harness to a stable anchor point on your roof.
• Work with a Buddy: Having someone to assist you can help prevent accidents.
• Check the Weather: Avoid roofing on rainy or windy days.
• Wear Appropriate Gear: Use sturdy shoes with good traction and wear gloves to protect your hands.

9 Step Roof Replacement Guide

Replace your roof like a pro by following these 9 steps.

Step 1: Remove the Old Roof

• Start at the Top: Begin removing shingles from the top of the roof, working your way down.
• Use a Roofing Shovel: A roofing shovel or tear-off tool helps to remove shingles more efficiently.
• Collect Debris in Tarps: Spread tarps around your house to catch falling debris and make cleanup easier.
• Remove Nails and Flashing: Use a pry bar to remove nails and old flashing.

Step 2: Inspect the Roof Deck

• Check for Damage: Inspect the plywood for any signs of rot or damage. Replace any compromised sections.
• Ensure Flat Surface: Make sure the roof deck is smooth and free from protruding nails or screws.

Step 3: Install the Drip Edge

• Place Drip Edge Along the Eaves: Nail the drip edge along the eaves of the roof, ensuring it extends past the edge of the decking.
• Install Along the Rakes: After the underlayment is laid, install the drip edge along the rake edges.

Step 4: Lay the Underlayment

• Roll Out the Underlayment: Starting at the bottom, roll out the underlayment horizontally across the roof.
• Overlap Each Row: Ensure each row overlaps the one below it by at least 6 inches.
• Secure with Nails or Staples: Use roofing nails or staples to secure the underlayment to the roof deck.

Step 5: Install Flashing

• Step Flashing for Valleys: Install step flashing in roof valleys and around chimneys.
• Continuous Flashing for Roof Edges: Use continuous flashing along roof edges to prevent water infiltration.

Step 6: Install the Shingles

• Start at the Bottom: Begin laying shingles at the bottom edge of the roof, working your way up.
• Follow the Chalk Line: Use a chalk line to keep your rows straight.
• Nail Properly: Use four nails per shingle, positioned just below the adhesive strip.
• Stagger Shingle Joints: Stagger the joints in each row to prevent leaks.
• Trim Shingles as Needed: Use tin snips to trim shingles at roof edges and valleys.

Step 7: Install Ridge Cap Shingles

• Cut Ridge Cap Shingles: Cut shingles into sections to create ridge cap shingles.
• Lay Over the Ridge: Lay the ridge cap shingles over the ridge, overlapping each piece.
• Nail Securely: Use roofing nails to secure the ridge cap shingles into place.

Step 8: Install Roof Vents

• Cut Holes for Vents: If necessary, cut holes in the roof deck for vents.
• Install Vent Flashing: Place flashing around the vent openings.
• Secure the Vents: Install the vents and seal around the edges with roofing sealant.

Step 9: Clean Up

• Remove Debris: Clear away all debris and old shingles from the roof and surrounding area.
• Inspect Your Work: Do a final inspection of your work to ensure all shingles are properly installed and there are no loose nails or flashing.

Tips for a Successful DIY Roof Replacement

Want to replace your roof like a roofing contractor would? Follow these rules to work like a well-oiled roofing company.

Plan Ahead

• Order Materials in Advance: Ensure you have all necessary materials before you start.
• Check Local Building Codes: Make sure you comply with any local building codes or regulations.

Work Efficiently

• Start Early: Begin work early in the day to take advantage of cooler temperatures.
• Take Breaks: Stay hydrated and take regular breaks to avoid fatigue.

Maintain Quality

• Use Quality Materials: Invest in high-quality shingles and underlayment for a longer-lasting roof.
• Follow Manufacturer Instructions: Adhere to the installation instructions provided by the manufacturer.

DIY Roofing? Try G Cannon Instead!

Replacing your own roof is a challenging but rewarding project. With careful planning, the right tools, and a step-by-step guide, you can achieve professional results while saving money. Remember to prioritize safety and take your time to ensure a job well done.

If replacing your existing roof is feeling overwhelming, G Cannon Roofing has you covered. Contact us today to learn about roof replacements and more!