Sorry Chris, I misunderstood and I was answering with my mobile PDA.
It was above freezing today but no more dripping ocurred(at least not when I looked).
I am starting to convince myself that frost on either the roof deck or nails may be it. I think stack affect comes into play here as the sheet rock seems in my garage ceiling are not taped and mudded. There has been excessive frost on the garage door seams and I’m thinking stack affect also pulled moisture laden air through the open ceiling seems and condensed on the deck and nails. Perhaps I have a bypass from the interior that is also contributing to this.
I sure wish I had a IR camera.
If I have time tomorrow I’m going to walk the attic for a closer look and to check for any bypasses. I have a large number of recessed down spot lighting fixtures but from what I could see yesterday they are well buried under blown in insulation.
I inspected the roof last fall (it’s 8 years old with architectural type shingles.
I had a loose shingle on another part of the roof that I nailed back in place. It appears to have been missed when it was nailed and the seal tabs had not adhered. Unrelated issue.
Barry, I’ll take one up the ladder with me tomorrow.