Could be a few things bad plywood bad framing etc.
Soft spots on roof of house.
If you can tell there s a soft spot on your roof this most likely means that the substrate below the roofing material is damaged and deteriorating.
Without good attic ventilation your roof gets extremely hot.
That dip in the roof with a soft spot indicates that you should have your roof repaired asap.
You can also go into your attic and wrap towels or other means around the spot water could enter including around the vent pipe.
This can be a result of the plywood sheeting becoming wet from rain above or from moisture not being able to escape from below and leading to mold mildew growth on the wood.
The entire roof feels like that.
In actuality this discoloration may be caused by algae growth.
If there is inadequate ventilation the probability of moisture buildup and then mold mildew growth is much higher.
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They are the type with the little stones inbedded in them.
Therefore if you find yourself dealing with soft spots you might want to start by finding any sources of water that are contributing to the problem.
Most roofs have plywood sheeting underneath the roofing tiles or shingles.
Investigating for water leaks.
The house is a ranch.
I bought a house that is about 30yrs old.
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.
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What is a roof soft spot.
Get into the attic and look at the underside of those soft spots.
When i walk on the roof it feels soft kinda spongy.
The roof is about 4yrs.
The shingles look like they are in good shape.
One of the most common questions we receive here at american standard roofing is about roof soft spots usually after a weather change.
Some of the most common causes of soft spots include.
That dip in the roof with a soft spot is indicative of the fact that you should have your roof repaired asap.
For another thing any good repair is going to remove the wood around the rotted area anyway.
Soft spots don t go away they get worst.
For one thing when the roof gets patched nail holes are easy to patch or just ignore if they re covered by new shingles.
What causes soft spots in mobile home floors.
A little about me and what i do.
The reason for these soft spots is that the layer underneath is probably very soaked due to gaps in the shingles cause over time and weather changes and the water is seeping through the sheeting.
Roofing systems are susceptible to algae discoloration it is most readily visible on white or light colored shingles.
These soft spots usually form when the layer underneath gets soaked due to gaps in the shingles.
Over the period of manufacturer s designated roof lifetime of 25 to 30 years that plywood is exposed to heat in the summers heavy rains and the winter weather and cold dampness it brings.
Repeated exposure to moisture.
The roof has about a 35 degree slant to it.