Your roof – the guardian against the elements, keeping you safe and dry. But what happens when your trusty shield shows signs of wear? Replacing the entire roof can be a hefty investment. Thankfully, in some cases, you can consider re-roofing over existing shingles – a more budget-friendly option!
This guide equips you with the knowledge to assess your roof’s suitability for a re-roof and walks you through the process, step-by-step. Remember, safety first! If you’re unsure about your abilities, consider consulting a professional roofer.
Is My Roof Ready for a Re-Roof?
Before diving in, it’s crucial to determine if your existing shingles can handle another layer. Here’s what to check:
Shingle Condition: If the existing shingles are curled, cracked, brittle, or have missing granules, a re-roof won’t solve the underlying problem. In such cases, a complete roof replacement might be necessary.
Roof Slope: Steeper roofs (over 4:12 pitch) are generally better suited for re-roofing as water sheds more efficiently. Flatter roofs might require a complete tear-off for optimal drainage.
Number of Existing Layers: Generally, building codes allow for a maximum of two layers of shingles. Check with your local building department to confirm regulations in your area.
Safety First! Gear Up and Prepare
Roofing involves working at heights. Here’s what you’ll need:
Safety Harness: This is non- negotiable. Secure the harness to a stable anchor point.
Sturdy Work Boots: Provide traction and protect your feet.
Fall Protection Gear: Consider using a safety net or guardrails for added security.
Tools: Roofing nails, hammer, utility knife, pry bar, staple gun (optional), and a trash chute.
Materials: New shingles (enough to cover your entire roof), ice and water barrier (for vulnerable areas), and starter strip shingles.
Re-roofing Over Existing Shingles: A Step-by-Step Guide
1. Clear the Roof: Remove all debris like leaves, branches, and any loose shingles.
2. Address Ventilation: Proper ventilation is crucial for preventing moisture buildup under the shingles. Ensure adequate ventilation exists (soffit vents and ridge vents) before proceeding.
3. Install Ice and Water Barrier: In areas prone to ice dams (valleys and eaves), apply an ice and water barrier membrane to prevent water infiltration.
4. Prep the Edges: Install starter strip shingles along the eaves to create a straight edge for the new shingles.
5. Laying the New Shingles: Begin at the bottom edge and work your way up. Overlap each course of shingles according to the manufacturer’s instructions. Secure them with roofing nails.
6. Flashing and Valleys: Pay special attention to flashing around chimneys, vents, and skylights. Use a metal flashing material and sealant to create a watertight barrier. Valleys (where two roof planes meet) also require proper flashing.
7. Hips and Ridges: Install hip and ridge shingles to cover the peak and edges of your roof.
8. Cleaning Up: Once the re-roofing is complete, remove all debris from the roof and surrounding areas. Dispose of old shingles responsibly, following local regulations.
When to Call in the Professionals
- While re-roofing over existing shingles can be a DIY project, consider seeking professional help if:
- You’re unsure about your roof’s condition or local building codes.
- Your roof has complex features like multiple valleys or skylights.
- You’re uncomfortable working at heights.
Bath Planet of St. Louis: Your Trusted Partner in Roofing Renovations
Even with a re-roof, sometimes a complete roof replacement might be necessary in the future. For those situations, Bath Planet of St. Louis can be your trusted partner. They offer a wide range of high-quality roofing materials and expert installation services.
Their experienced professionals will assess your roof’s needs and recommend the best course of action, ensuring a durable and weatherproof roof that protects your home for years to come.
