Around 9am this morning, the roofer showed up. Spenser and I went out to chat with him. He said they were going to felt the sunroom to protect it. I mentioned we had 3" of snow sitting on it for the past week. He asked when the roof was going to be finished. I laughed and said I was hoping he could tell me. I asked if he knew when they would be back to finish the shingle installation. He said when it warmed up. He said they needed a couple of days in the 40's. Too bad they did not use yesterday and today!
I called Mike to let him know the roofer was here. Mike said he knew they were going to be there.
The roofer crew worked about an hour and when they had finished, it looked like they used all the scraps of felt they had laying around their shop. It is quite a patch job. Not pretty. Sloppy. At least we now have some protection. I sent a picture to Mike.
When I was talking with Mike, he said he had looked at bathroom ventilators when he was at Home Depot. He said we could get a ventilator to fit under the cupola which would have a capacity of 70 cfm. If we installed two, the total capacity would be 140 cfm. I was shocked! I reminded Mike that, on several occasions, he had suggested we could find a fan with a capacity of 1,300 cfm. Mike denied he ever said that, which is not true. He might have been mistaken, but he did indeed say it. I told Mike I did not believe that one or two 70 cfm fans was not going to be enough. My research indicated we should be looking at something with a capacity of 2,000 cfm or more. This was based on a air turnover rate of 15. Mike wanted to argue about my calculations and/or the need to have that many air turnovers. I would have none of it. I reminded Mike that ventilation and humidity control has been a primary concern to us since the start of the project. We are resolute with respect to ensuring this is properly addressed.
Previously, in a February 12 email, I had suggested that we discuss this issue with Frank (HVAC). To this suggestion, Mike had stated he did not believe we needed Frank's involvement. Today, we ended the conversation with my promise to send Mike my calculations of the sunroom volume and Mike's promise to discuss the matter with Frank. I subsequently scanned and sent my calculations to Mike. I also copied Tyler (architect) so he could comment if he wished. I also noted in today's email that in my February 12 email, I had solicited Tyler's opinion on the amount of ventilation we might need and that Tyler did not respond to that request. Shortly thereafter, Tyler sent a note reminding me that he did respond to my email of February 12. This was true, but he did not answer my request for his professional opinion on the amount of ventilation he needed. This evening, Tyler responded: "I am afraid I would have to defer to Frank as the expert on mechanical ventilation requirements. An architect’s brain can only hold so much."
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