This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment I dunno. I would guess that my shop is pretty airtight - concrete block = walls, sheetrock ceiling (w/foil/fiberglass insulation), several = well-sealed windows and a double-door. Even in the summer it takes a = couple days to fill the reservoir on my dehumidifier and the unit runs = less than half the time. I know that is not real specific, but it should provide a general = picture. Are you trying to regulate shop humidity? Tell me about your = shop. Terry Farrell ----- Original Message -----=20 From: David Love=20 To: 'Pianotech'=20 Sent: Thursday, November 04, 2004 6:49 PM Subject: RE: Moistureproofing shop - now stage box Terry: =20 How air tight is your shop? And, generally speaking, how air tight = does it need to be for the dehumidifier to be effective? =20 David Love davidlovepianos@comcast.net=20 -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On = Behalf Of Farrell Sent: Thursday, November 04, 2004 3:37 AM To: Pianotech Subject: Re: Moistureproofing shop - now stage box =20 Hi Bob, =20 It doesn't take a whole lot to get humidity under control. My shop is = a 1,000 square-foot stand-alone concrete block building with a concrete = floor. The only thing I did was to paint the outside with a paint that = is advertised to have moisture-inhibiting properties (not likely to do = much good on your metal walls) and use a Sears-type basement = dehumidifier. My shop easily stays down below 50% RH year 'round. =20 What type of insulation did you use in your walls? If you used a = foil-backed fiberglass roll stuff, you should be just fine - the foil = will do a pretty good job of stopping moisture migration (not to mention = your metal walls!). =20 I would check the function of your dehumidifier. I had to replace my = original one recently because it started icing over, was running all the = time and barely produced water. With the new one it barely runs and = produces a bucket of water every couple days. One thing I have found is = to make sure you get a dehumidifier with an electronic humidistat. The = dial type seem to wander all over regulating operation of the unit. The = electronic ones seem to keep RH pretty darn consistent. The other thing = I do is to keep a small fan running in the area of the dehumidifier - I = keep an air flow over the dehumidifier and pointing out into the shop. = That way the humidistat on the unit has exposure to representative shop = RH and it spreads the dried air out into the shop real well when the = unit goes on. =20 Terry Farrell =20 ----- Original Message -----=20 From: "Bob Hull" <hullfam5@yahoo.com> To: "Pianotech" <pianotech@ptg.org> Sent: Thursday, November 04, 2004 1:28 AM Subject: Moistureproofing shop - now stage box =20 > I appreciate the reply, Gordon. >=20 > My concrete floor does have a layer of plastic > sheeting under it, if I remember right. What type- I > don't know. =20 >=20 > I have seen moisture still come up through some small > cracks and the concrete will look damp around that > crack. But, overall I don't think I have a big > problem. I'm still getting the inside walls sheathed > with plywood when time allows. The building is a > metal building that began as a horse barn. I added a > ceiling, interior framing and insulation. I've just > used the localized approach of multiple dehumidifier > bars and blankets draped for drying out soundboards > and this seems to do okay. =20 >=20 > I think next spring an additional or new dehumidifier > unit will be in order. =20 >=20 >=20 > I'm outa here for the day.=20 >=20 > Bob H. =20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/2e/77/cc/76/attachment.htm ---------------------- multipart/alternative attachment--
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