I am a home owner. I had a new roof replaced last yr. Before replacing I had no ridge vent. All I had was a power vent . When they replaced my roof they added a ridge vent and removed me power vent. We had a storm with winds steady at 20 mph gusting to 30. Inside we could here the rafters creeking and a pressure where it felt like the roof was going to lift off. I never had that that problem until they put on my new roof. What can I do? The roofing owner stated that he has never herd of this.any ideas would be greatly appreciated.thank you in advance.
That could cause exactly what you have described.
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There are a myriad of variables involved. The strain on the roof is most affected by the shape and slope(s) of the roof facets versus the speed and direction of the wind, not the size or number of roof vents. The standard (most important) mitigation for high winds are the installation of hurricane ties that firmly connect your truss/rafters to the exterior walls.
I have owned my home for 8 yrs. This never happened. They put a ridge vent in,that I did not have before. They removed my attic vent. I’m worried that when we get another storm,we will loose our roof I have hurricane ties. I live in Florida. I have had past storms and our roof held nicely. This phenomenal pressure is the first time we encountered this.
I feel that I need to have them remove the ridge vent,and put a regular roof top back on . And reinstall my attic fan.
…to hire a ventilation expert to evaluate the actual situation… including WHY did you have a power vent to begin with? A structure with proper ventilation should never need a power assisted vent for what should occur naturally!
Based upon what little (to no) facts you provided about the method of construction and conditions present, my WAG would be you have improper, inadequate and/or failing intake venting, e,g, poor Soffit Venting. The power venting overcame any restrictions by utilizing mechanical force!
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Thank you Jeffrey. I will take your response and run with it. Sounds like the most logical answer. Again,thank you
Lots of things other than the venting could have changed, been damaged, etc. during the roof replacement. I’m very skeptical that a change in ventilation could cause a drastic change but there are lots of unknowns.
I’ve got an air specialist coming tomorrow to see if there is an imbalance.
Power vent was likely required for your roof’s shape.
What roofing material was replaced?