Inadequate attic ventilation can also cause your shingle roof to feel spongy or bouncy. Without good attic ventilation your roof gets extremely hot. And that extreme heat can damage both your shingles and the wood decking below them and causing your roof to feel soft when walking on it.
What does a spongy roof mean?
If there are areas of your roof that feel spongy or soft while you are walking on it, it is time to call the professionals. A spongy feelings means that the decking that lays under the roof has suffered damage from moisture and has become weak or rotted.
What are the signs of a bad roof?
10 Warning Signs Your Roof is Failing
- #1. You have several missing or loose shingles. …
- #2. Your shingles are curling, cracking, dry, or blistering. …
- #3. The roof is sagging. …
- #4. There are dark/dirty areas on your roof. …
- #5. You have granules in your gutters. …
- #6. You notice several exposed or loose nail heads. …
- #7. …
Why is my flat roof spongy?
A spongy feel to a flat roof usually indicates significant water ingress into the flat roofing substrate. In particular, this is the underlying decking and insulation. … It is most common on older flat roofs or those that have been poorly installed often with substandard flat roofing materials.
What causes ripples in a roof?
Lack of adequate ventilation could lead to moisture being trapped in the roofing system. The sheath absorbs this moisture causing it to ripple. … Moisture from the house will get in between the panels and absorbed by the felt. The felt with then expand and wrinkle pushing the shingles up causing the rippling effect.
How do you fix a spongy roof?
How to fix it: Unfortunately, the only way to fix this problem is to tear off the entire roof and replace it with thicker decking. You may even need to add additional support between rafters. Since this is such a big job, it’s usually best done when you’re replacing your shingle roof.
How much does it cost to repair a roof leak?
Most homeowners spend between $300 and $1,200 for a roof repair, or an average of $650-$850 per repair call. Typically, a job is to repair leaks. Seal the leak, replace shingles, seal the shingles. If there is a small area and few shingles being repaired, it will likely be on the low end, or as little as $150.
How many years does a roof usually last?
Roofs. Slate, copper and tile roofs can last more than 50 years. Homeowners with wood shake roofs should expect them to last about 30 years, while fiber cement shingles last about 25 years and asphalt shingle/composition roofs last about 20 years, the NAHB found.
How often should you roof your house?
In general, this is the recommended replacement schedule based on the material used: Composition Shingles: 12-20 years. Asphalt Shingles: 15-30 years. Wood Shingles: 20-25 years.
How do you know it’s time for a new roof?
8 Potential Signs That Your Roof May Need To Be Replaced:
- Shingle edges are curled or shingle tabs are cupped.
- Bald spots where granules are missing.
- Cracked shingles.
- Your roof is at least 20 years old; while many shingles today are produced for durability, many factors can accelerate the aging of shingles.
Can you walk on the roof?
Walking on your roof (unless absolutely necessary)
Beyond the potential of falling off, there is the actual damage to the roof that may occur as a result of your walking on it. Walking on your asphalt shingles can leave the shingles bare, dislodge them or create gaps that can increase the potential for leaks.
What is roof soffit?
The soffit is part of the overhang where your roof meets your siding. When rain or snow hits your roof, it runs down, and the overhang allows the water to flow away from your house. The soffit is underneath the overhang, between the roof’s edge and side of your home—the bottom of the triangle, if you will.
What does a wavy roof indicate?
What Makes a Roof Go All Wavy? A wavy roof is rather alarming, and unfortunately there are actually quite a few potential causes. However that pronounced wave will nearly always signify one big thing: your roof is buckling or bulging somewhere, or the materials simply aren’t lying flat.
Why does my new roof look wavy?
When heated by the sun, the strip will cause the shingles to lay down and bond together. It is not uncommon for a new roof to look a bit wavy until this permanent seal is created. This is normally not a problem unless you experience windy conditions that can catch the shingles.
Is it OK to shingle over wet felt?
Do not shingle over wet or damp roof sheathing or damp felt paper. The trapped moisture cannot evaporate when the sun heats the shingle. … Stripping away the old shingles will cost more, but the new roof covering will last longer if it is a single layer.