Why do you need gutter guards on metal roofs?
Metal roofs are fantastic for durability and longevity, but they still direct a significant amount of water and debris into your gutters. Leaves, twigs, pine needles, and even small bits of roof material can accumulate, leading to clogs. These clogs can cause water to overflow, damaging your fascia, siding, landscaping, and even your home’s foundation. Gutter guards are a crucial investment, preventing these issues, reducing maintenance, and protecting your property from water damage.
Types of gutter guards ideal for metal roofing
Micro-mesh
Micro-mesh gutter guards are often considered the top choice for metal roofs due to their extremely fine filtration. They consist of a surgical-grade stainless steel mesh that blocks even tiny particles like shingle grit, pine needles, and pollen while allowing water to flow freely. They are highly effective at preventing clogs and are durable enough to withstand harsh weather conditions, including heavy rain and snow.
Brush / bristle
Brush or bristle gutter guards look like a giant pipe cleaner placed inside your gutters. They are designed to catch larger debris on top while allowing water to pass through the bristles. While easy to install and relatively affordable, they require more frequent cleaning as debris can get caught within the bristles, and finer particles may still pass through.
Screen
Screen gutter guards, typically made from aluminum or plastic, are a common and cost-effective option. They feature small holes or mesh patterns that allow water to enter while blocking larger leaves and debris. However, smaller particles like pine needles and shingle grit can still get through, potentially leading to clogs over time. They are generally easy to install and maintain.
Tools & materials you’ll need
Before you begin, gather these essentials:
- Ladder: Stable and tall enough to safely reach your gutters.
- Work gloves: For protection.
- Safety glasses: To protect your eyes.
- Gutter scoop or trowel: For cleaning out existing debris.
- Leaf blower or garden hose: For final cleaning.
- Measuring tape: For accurate cutting.
- Tin snips or utility knife: Depending on the gutter guard material for cutting.
- Drill with appropriate bits: For attaching clips or fasteners.
- Screws or clips/straps: Specific to your chosen gutter guard type.
- Sealant (silicone caulk): For waterproofing and sealing gaps.
- Gutter guards: The type you’ve chosen for your metal roof.
Step 1: Clean your gutters and roof edge
Thoroughly clean your gutters. Remove all leaves, twigs, dirt, and any other accumulated debris. Ensure downspouts are clear. Use a leaf blower or flush with a garden hose to ensure no small particles remain. Also, clear any debris from the very edge of your metal roof where it meets the gutter. A clean surface is crucial for proper installation and function.
Step 2: Measure and cut the guards
Measure the length of your gutters. Cut the gutter guards to fit these lengths using tin snips for metal or a utility knife for plastic/mesh. For corners, you may need to make specific cuts or use pre-formed corner pieces if available with your chosen system. Always ensure a snug fit to prevent gaps.
Step 3: Attach gutter guards to metal roofing
Using clips vs straps
Most gutter guard systems designed for metal roofs will use clips or straps that slide under the leading edge of the metal roof or attach directly to the fascia.
- Clips: These are usually small, discreet fasteners that secure the gutter guard to the lip of the gutter or the roof edge. They provide a strong, stable attachment.
- Straps: Some systems use straps that wrap around the gutter and secure the guard. These might be more visible but can offer flexibility. Follow the manufacturer’s instructions for your specific product to ensure proper attachment. Secure them firmly, making sure the guard sits flush and stable.
Sealing and waterproofing
Once attached, inspect for any small gaps, especially at seams or corners. Apply a high-quality, weather-resistant silicone sealant to any areas that might allow water or debris to sneak through. This step is crucial for preventing leaks and ensuring that all water is directed into the gutter, not behind it.
Step 4: Check alignment and flow
After installation, perform a final check. Ensure the gutter guards are properly aligned and sitting securely. You can test the flow by running water from a hose onto the roof, observing how it drains into the gutters and through the guards. Look for any areas where water might be pooling on top of the guards or overflowing. Make any necessary adjustments to ensure optimal performance.
Maintenance: cleaning and inspection tips
Even with gutter guards, occasional maintenance is advisable.
- Regular Inspection: Check your gutter guards a few times a year, especially after heavy storms or during peak fall/spring seasons. Look for any accumulated debris on top of the guards, damaged sections, or signs of water bypassing the system.
- Light Cleaning: For micro-mesh or screen guards, a leaf blower or a stiff brush can remove surface debris. Brush guards might need to be removed periodically for a more thorough cleaning of trapped debris.
- Downspout Check: Periodically ensure your downspouts remain clear.
Troubleshooting common issues
- Overflow: If water is still overflowing, check if debris has built up on top of the guards, if the guards are improperly installed (creating gaps), or if the gutter slope is incorrect.
- Leaks: Leaks typically indicate improper sealing at seams or attachment points. Reapply sealant as needed.
- Sagging Guards: Ensure clips/straps are secure and numerous enough to support the guards, especially under snow load.
Hiring vs DIY: Cost comparison
- DIY Cost: Primarily the cost of the gutter guards themselves, plus any tools you need to purchase. This can range from $0.50 to $6.00 per linear foot for materials.
- Professional Installation Cost: Includes materials, labor, and expertise. This typically ranges from $5.00 to $15.00 per linear foot, depending on the type of guard and complexity of the roof.
When it’s best to hire a pro
While DIY installation is possible, hiring a professional is often recommended if:
- You have a multi-story home or a steep metal roof, posing significant safety risks.
- You lack the proper tools or experience working on roofs.
- You want a warranty on both the product and installation.
- You prefer a hassle-free solution and peace of mind knowing the job is done right.