Installing a new roof is a significant investment, and discovering that your new shingles aren't laying flat can be frustrating. This issue, while potentially concerning, often has straightforward solutions. This comprehensive guide will explore the common causes behind this problem and provide practical steps to remedy the situation. We'll delve into the details, helping you understand why this happens and what you can do to ensure a long-lasting, aesthetically pleasing roof.
Why Aren't My New Shingles Laying Flat?
Several factors can contribute to new shingles not lying flat. Understanding these underlying causes is the first step towards finding an effective solution.
1. Improper Installation:
This is the most common culprit. Even slight errors during installation can lead to curling, buckling, or uneven shingle placement. This includes:
- Incorrect nailing: Using too few nails, placing nails incorrectly (too high or low), or using nails that are too short can all prevent shingles from adhering properly.
- Skipping starter shingles: Starter shingles provide a crucial base for the rest of the shingles, and their omission can cause subsequent layers to lift.
- Uneven underlayment: Wrinkles or creases in the underlayment can transfer to the shingles, causing them to buckle.
- Improper shingle alignment: Failing to align shingles correctly, especially at the edges, can lead to unevenness and lifting.
2. Extreme Temperatures:
Temperature fluctuations, especially during installation or shortly thereafter, can affect shingle flexibility. Extreme heat can cause shingles to expand and curl, while extreme cold can make them brittle and prone to cracking.
3. Moisture Content of the Shingles:
Shingles can absorb moisture from rain or humidity before installation. This added weight and expansion can cause them to lift once they dry and contract.
4. Defective Shingles:
In rare cases, the shingles themselves might be defective. Manufacturing flaws can lead to inconsistencies in material thickness or composition, causing some shingles to curl or buckle more easily.
5. Improper Ventilation:
Poor attic ventilation can lead to excessive heat buildup under the roof, causing shingles to expand and lift. This is especially crucial in hotter climates.
How to Fix New Shingles That Aren't Laying Flat
Addressing the underlying cause is key to a successful repair. Here's a breakdown of potential solutions:
1. Assess the Installation:
Carefully inspect the roof to identify the areas where the shingles are not laying flat. Pay close attention to nailing patterns, underlayment condition, and shingle alignment. If you lack roofing experience, it's best to involve a professional at this stage.
2. Check for Defective Shingles:
Examine the affected shingles for any obvious manufacturing defects. If you find damaged or substandard shingles, contact the manufacturer or supplier for a replacement.
3. Improve Attic Ventilation:
If poor ventilation is suspected, improve attic airflow by installing or upgrading vents. Adequate ventilation will help regulate attic temperature and reduce shingle stress.
4. Consider Environmental Factors:
If the problem is due to extreme temperature fluctuations, there's unfortunately little you can do to directly remedy the situation. However, preventing further damage by minimizing exposure to extreme conditions, particularly heat and direct sunlight, may help reduce further problems.
5. Contact Your Roofing Contractor:
For significant issues or if you're unsure about the cause, contact the roofing contractor who installed the shingles. They should be responsible for rectifying any installation errors. Their expertise and warranty coverage will often be invaluable in such situations. Remember to document the issue with photos.
Can I fix them myself?
Unless you are experienced in roofing repairs, it's generally best to leave the fixing of misaligned shingles to a professional. Incorrectly attempting repairs can worsen the problem and potentially void any warranties on your roofing materials.
This article provides general information and should not be considered professional advice. For any concerns about your roof's condition, always consult a qualified roofing professional. They can assess the situation accurately and recommend the most appropriate course of action.
