roof is 8/12 pitch30' longhas a ridge vent and three soffit ventsheavy frost collects than melts on nice days causing water to pool in the attichave 8quot; of expandable foam insulation and a layer of a foil quot;spacequot; blanket.
Contractor who is also a musician says: Either practice pads or ALL of the below: No Windows Extra Heavy Sound-proof capable (studio quality door) as the only opening in the room Lay down Concrete floor with a riser floor above it that is dampened 1 inch thick gypsum board on walls and ceilings covered with foam padding designed to dampen and silence and then about 100 other things that would've had to have been planned PRIOR TO BUILDING THE ROOM
You almost certainly do not have an effective vapor barrier on the warm side of your ceiling (before the insulation)Without a vapor barrier on the warm side, water vapor in the air will go through your insulation and continue travelling until it meets the cold part of your roofThe water well then condense out of the vapor and form frost which will melt when the weather warms and 'rain' back through your ceilingPlacing a vapor barrier on the cold side (above the insulation) will cause the frost to form there instead of on the roof but you will still have the same problemVapor is very insidious; it will pass through solid wood, tar paper, drywall and insulation as if they weren't thereOnly a vapor barrier can stop itPlastic and steel are vapor barriers50 years as home builder/contractor25 years in NW MontanaHave encountered this problem many times and have solved it every time with a vapor barrier.
You almost certainly do not have an effective vapor barrier on the warm side of your ceiling (before the insulation)Without a vapor barrier on the warm side, water vapor in the air will go through your insulation and continue travelling until it meets the cold part of your roofThe water well then condense out of the vapor and form frost which will melt when the weather warms and 'rain' back through your ceilingPlacing a vapor barrier on the cold side (above the insulation) will cause the frost to form there instead of on the roof but you will still have the same problemVapor is very insidious; it will pass through solid wood, tar paper, drywall and insulation as if they weren't thereOnly a vapor barrier can stop itPlastic and steel are vapor barriers50 years as home builder/contractor25 years in NW MontanaHave encountered this problem many times and have solved it every time with a vapor barrier.
