08/26/2026
If your asphalt shingles look wrinkled or buckled, the problem is rarely the shingles themselves. π
1. Cheap felt underlayment absorbs moisture from humid air and warps before the roof is even finished. π§
2. Poorly ventilated materials trap hot air in your attic and slowly rot your wood decking from the bottom up.
3. Skipping ice and water shield in the valleys guarantees interior dripping during the first major spring melt.
Learn how hidden underlayment failures ruin a roofing system and what to watch out for.
https://www.advancedroofsystems.com/4-ways-substandard-underlayment-accelerates-asphalt-shingle-failure