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2 Posts
Hello,
I have a 1.5 story home with 76 linear feet of ridge vent. I don't know if it's the rolled type ridge vent or not but during an energy audit about 6 months the guy told me it was installed correctly. Based on what Ed said in another post that should give me roughly 1368 sq inches of venting (18 sq inches per linear foot). I also have about 85 linear feet of continuous soffit venting. I have attached a picture of it to help. I am not sure of specs on this soffit vent. It is 12" wide, actually only 11" that can pass air.
My problem is on a 95 degree day, like yesterday, the attic reads 130 degrees. It almost broke the thermometer testing it. And when I am up there I can barely see any noticable airflow. Cobwebs hanging from the underside of the roof hardly move in the channels rising from the soffit vents.
I educated myself on attic sealing and insulation and have done all that was recommended during the energy audit. The soffit vents seem clear and the insulation is not blocking airflow up to the ridge vent. I know powered attic fans aren't recommended with ridge vents.
So, basically I am not sure if my intake is anywhere close to what it needs to be and I am not sure how to calculate it. If it is insufficient then how would I fix it?
Thanks for your input.
Bob
I have a 1.5 story home with 76 linear feet of ridge vent. I don't know if it's the rolled type ridge vent or not but during an energy audit about 6 months the guy told me it was installed correctly. Based on what Ed said in another post that should give me roughly 1368 sq inches of venting (18 sq inches per linear foot). I also have about 85 linear feet of continuous soffit venting. I have attached a picture of it to help. I am not sure of specs on this soffit vent. It is 12" wide, actually only 11" that can pass air.
My problem is on a 95 degree day, like yesterday, the attic reads 130 degrees. It almost broke the thermometer testing it. And when I am up there I can barely see any noticable airflow. Cobwebs hanging from the underside of the roof hardly move in the channels rising from the soffit vents.
I educated myself on attic sealing and insulation and have done all that was recommended during the energy audit. The soffit vents seem clear and the insulation is not blocking airflow up to the ridge vent. I know powered attic fans aren't recommended with ridge vents.
So, basically I am not sure if my intake is anywhere close to what it needs to be and I am not sure how to calculate it. If it is insufficient then how would I fix it?
Thanks for your input.
Bob
