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  1. Replies
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    Final Configuration

    Here's where we ended up:

    1. 3" closed cell foam on roof down to 2nd floor plates
    2. Ultra-Aire dehumidifier
    3. New supply ducts with 3" R-8 insulation (was cheaper than just reinsulating...
  2. Replies
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    857

    I am dealing with the premier contractor in the...

    I am dealing with the premier contractor in the area. Their manual D program was on one computer that crashed, so they no longer have the capability to do it. I am not doing this installation...
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    857

    Hello again. My two credos for this summer: ...

    Hello again. My two credos for this summer:

    Experience: What you get when you don't get what you thought you were going to get in the first place.

    Research: It's what I am doing when I...
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    3,209

    Abso-posi-tutely. They foamed from the ridge...

    Abso-posi-tutely. They foamed from the ridge down on to the knee walls right down to the wall plates. They either stuffed fiberglass or stapled felt across any voids and foamed over it. 3" closed...
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    Carnak: That's funny. Reminds me of the guy...

    Carnak:

    That's funny. Reminds me of the guy who said: when you ask someone a yes or no question and the answer is long winded or anything OTHER than yes, the answer is NO. Like when they ask...
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    Carnak: We decided to replace the supplies......

    Carnak:

    We decided to replace the supplies... and maybe even the returns. That's why I was seeking manual D info... to make sure when they are replaced they are properly sized. I really didn't...
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    3,209

    I am the not so proud owner of two of those...

    I am the not so proud owner of two of those Signature stats from Lennox via Invensys. One had to be replaced out of the box because it fed 24 volts to the compressor circuit whether the thermostat...
  8. Replies
    71
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    10,397

    Welcome to South Carolina! Where the most...

    Welcome to South Carolina! Where the most popular bumper sticker is: "We don't care HOW you did it up North!"

    Anyway, when it comes to 50,000 amps, or whatever lightning is, you'd probably need...
  9. Replies
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    10,397

    Thank you. Most of the wiring in the attic...

    Thank you.

    Most of the wiring in the attic along the bottom of the roof rafters is for a few light bulbs and utility outlets, but I did extend a circuit for the new dehumidifier, which is about 12...
  10. Replies
    71
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    10,397

    cem-bsee: Yes, our attic is now sealed from...

    cem-bsee:

    Yes, our attic is now sealed from the ridge down to the 2x6 plates with 3" of closed cell polyurethane foam. Where we had overhangs, there were knee walls from the outside wall up to...
  11. Replies
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    10,397

    Thanks for the input, but I researched this as...

    Thanks for the input, but I researched this as thoroughly as possible before foaming. I called Elk, the manufacturer of our shingles, and they have what I will term a "letter of acceptance" to...
  12. Replies
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    10,397

    Greetings all. We've come a long way since I...

    Greetings all. We've come a long way since I started this thread in June. Last Friday they finished the closed cell foam on our roof. We went with 3" and I have high hopes. A 30 pint dehumidifier...
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    Absolutely agree. You may not see any references...

    Absolutely agree. You may not see any references to class A chimney on the pipe or cap, but if there is a manufacturer's name, like Majestic or Superior, etc, they make their own pipe to fit their...
  14. Replies
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    1,888

    coolwhip: Yes, I have visited both sites. We...

    coolwhip:

    Yes, I have visited both sites. We have narrowed the field to Nutone ILFK250 and Fantech REG140. The Nutone has higher cfm's, but only one year warranty. The Fantech, has lower cfm's,...
  15. Replies
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    1,888

    Thanks for the input. The steam shower is...

    Thanks for the input. The steam shower is enclosed and only the steam or humid air in the case of a shower escapes when you open the door or the glass panel at the top of the door. The return for...
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    This is a large master bath with whirlpool bath...

    This is a large master bath with whirlpool bath and steam shower. At just over 200 square feet, it has a vaulted ceiling running from 8' to 9'-6". I was going by the 8 turns per hour general...
  17. Replies
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    1,888

    While prepping to foam our roof to solve a...

    While prepping to foam our roof to solve a condensation problem with our ducts in the attic, we discovered our builder never connected a duct to the bath fan. It has been blowing the humid air into...
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    Sorry folks.... this re-post was a mistake.... we...

    Sorry folks.... this re-post was a mistake.... we already went down this road....
  19. Replies
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    We just replaced two heat pumps. House new in...

    We just replaced two heat pumps. House new in 98, but salt air destroyed condenser fins. We had upstairs and downstairs systems with 3 1/2 ton condensers and 4 ton air handlers 12 SEER.

    I...
  20. Replies
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    Here's my update: Today they started application...

    Here's my update:
    Today they started application of 3" of closed cell foam on the roof to seal out the heat and humidity. They expect a two or three day job to complete. Here are yesterday's attic...
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    teddy bear: Thanks for the response. Wonder...

    teddy bear:

    Thanks for the response. Wonder if it would be worthwhile to install a one way damper in the 16" supply duct. That would solve the backflow problem and probably wouldn't bother the...
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    I agree with previous reply that most vented logs...

    I agree with previous reply that most vented logs do not put out much heat, but they most often look a lot better than the unvented. You will have to keep your damper open while burning.

    If you...
  23. Replies
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    10,397

    At 2 lb density it is my understanding the R...

    At 2 lb density it is my understanding the R value is 7 per inch. They will be spraying 2 1/2" +/- 1/2". Should have the job done within 3 weeks.
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    Thanks mjballweg. Your installation is...

    Thanks mjballweg.

    Your installation is somewhat similar to mine: 38,000 btus downstairs and 3 tons upstairs. AFter the roof is foamed, if the lennox units can't do the dehumidification job I will...
  25. Replies
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    10,397

    Most all of the foam contractors in this area are...

    Most all of the foam contractors in this area are using the 2 pound foam. One was using 1.9, but no one above 2.
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