Recent content by Richwoods

There is no air intake. I was just saying air can move around behind the foam.

Dark blue is the foam board insulation

The roof insulation does NOT carry into the soffit. Air can flow from behind the foam boards from the ground, all the way to the ridge vent.

The humidity stays low due to the split unit. How low do I need it? Currently 41%

Thanks fellas. I haven't seen any water or wet foam since that one occasion. I've also been keeping my temperature gap from the inside to the outside within 20 degrees. My plan is to add vented soffits and maybe a whirlybird to help get that air flowing. Thoughts on a whirlybird? I'm also...

What is another option besides pulling foam off? Shop is finished.

I'm not sure, that's why I'm here. But I thought by preventing the warm air from contacting the metal roof?

Middle TN. Humidity in the shop stays low. I think it was just a perfect storm that night (could be totally wrong of course). High humidity outside, cold metal, warm air from shop hitting cold metal. I'll check the floor tonight, but I don't think it's the floor. About a year-old concrete with...

Thanks for all the comments and discussion. Here is what I am gathering so far. PLEASE agree/disagree with me. Just trying to fix this. Solutions to eliminate condenation: 1. Add soffit ventilation to hopefully create some airflow from soffits to ridge vent. 2. Remove roof, add vapor barrier...

My original plan was to spray foam. I ran across these foam boards for a great price and decided to save a lot of money. 3inch foam screwed to the perlins. I ordered soffit vents for the entire both sides.

Ridge vent is for ventilation behind the insulation, like an attic. With some soffit ventilation, maybe it would actually work. I wouldn't call it an assumption. Without rain, condensation is the only logically answer to where the water is coming from. It was 20 something outside and 65 in...

split unit heat and air

The ridge vent is above the insulation. There's a 1.5inch gap between insulation and metal roof. One foot overhangs, but the soffits are metal. Condensation was dripping from the ceiling in two spots. Coming through a seam I'm assuming. Split unit for heat/ac

Trying to decide on how to fix a metal roof condensation issue. I have 3inch foam board screwed to the purlins. All seams are spray foamed. Roof ridge vent complete span of roof, 30x40. It got down in the 20s a few weeks back and I left the heat on 65 overnight. Next morning the roof was...