Installing a new roof is a significant investment, and seeing your freshly laid shingles buckle or curl is understandably frustrating. New shingles not laying flat can stem from several issues, ranging from simple installation errors to more complex environmental factors. This comprehensive guide will delve into the common causes, troubleshooting techniques, and solutions to get your roof looking its best.
Why Aren't My New Shingles Laying Flat?
This seemingly simple question has a surprising number of answers. Let's explore the most common culprits:
Improper Installation: This is the most frequent reason. Several mistakes during installation can lead to shingles not adhering properly:
- Nail placement: Nails driven too high or too low can cause shingles to lift at the edges. Incorrect nail spacing also contributes.
- Insufficient nailing: Not using enough nails per shingle weakens its hold and can lead to buckling, especially in windy areas.
- Damaged underlayment: A torn or improperly installed underlayment can create uneven surfaces, leading to shingle irregularities.
- Improper shingle alignment: Overlapping shingles incorrectly can cause bunching and prevent them from laying flat.
- Incorrect starter course: A poorly installed starter course can disrupt the entire shingle layering process.
Environmental Factors: External conditions can also impact shingle adhesion and appearance:
- Extreme Temperatures: Intense heat can cause shingles to expand and potentially buckle, while extreme cold can make them brittle and more prone to cracking.
- High Winds: Strong winds can lift shingles before they've had a chance to fully adhere.
- Moisture: Excessive moisture under the shingles can create a lifting effect, particularly during and after rain.
Defective Shingles: Although less common, faulty manufacturing can result in shingles that simply don't lay flat.
- Warped or curled shingles: Inspect your shingles before and during installation. Any that appear warped or curled should be discarded.
- Shingles not properly cured: Sometimes shingles aren't fully cured before they're shipped, resulting in problems with adhesion.
How Can I Fix Shingles That Aren't Laying Flat?
The solution depends entirely on the root cause.
Addressing Installation Issues:
- Re-nailing: Carefully re-nail any lifting shingles using appropriate nails and ensuring correct placement.
- Replacing damaged shingles: Remove and replace any shingles that are significantly damaged or warped. Make sure to install replacements correctly, paying attention to nail placement and overlap.
- Addressing underlayment issues: If the underlayment is damaged, repair or replace it before attempting to lay any more shingles.
Dealing with Environmental Factors:
There is less direct intervention possible here. Prevention is key – ensuring proper installation to withstand expected wind loads and temperatures is vital.
Dealing with Defective Shingles:
Contact the manufacturer and your roofing contractor. Defective shingles should be covered under warranty.
What if the Problem Persists?
If you've tried the above troubleshooting steps and your shingles still aren't laying flat, it's crucial to contact a qualified roofing professional. They can accurately assess the situation, identify the underlying cause, and provide the necessary repairs or replacements. Ignoring the issue could lead to more significant problems like leaks and premature roof failure.
How long should I wait before shingles lay flat?
Most shingles settle within a few weeks of installation. However, extreme temperature fluctuations might delay this process. If after a month you still notice issues, it is best to consult a roofing professional.
Can I fix this myself, or should I hire a professional?
While minor adjustments like re-nailing might be within a homeowner's capabilities, more extensive issues necessitate professional help. A roofing contractor has the expertise and experience to diagnose the problem accurately and make the necessary repairs to prevent future damage.
Remember, a properly installed roof is essential for protecting your home. Addressing issues with shingles promptly prevents larger, more costly problems down the road. Don't hesitate to consult a professional if you are unsure about handling the situation yourself.
