SimonMoers
2017-01-23 09:32:42
- #1
Hello everyone,
we are currently having problems with moisture. Our structure is 2.5 stories with a hipped roof. Living space only on the ground floor and first floor with wooden beam ceilings and chipboards, roof is cold. Two months ago, the screed was poured and also plastered. Then everything just stood for a while because we only got the electricity two weeks ago and could only then start heating and drying the building. My thought was that we first need to insulate the upper floor briefly (collar beam area with glass wool and a vapor barrier), then heat and dry. We have now done that and also carried out a screed drying program (partly at 45 degrees). Cross-ventilation, building drying, and heating have been running 24 hours a day for the past 10 days. Yesterday the shock: water on the vapor barrier foil on the interior walls at the seams. We removed the sheets; of course, everything was completely wet, took down the wool, and this morning it was dry again. But light mold had already started. What is best to do now? Apparently, the moisture from the plaster on the walls sneaked past the vapor barrier through the hollow bricks and condensed on the chipboards.
Is there a protective option for the chipboards and collar beams on the ceiling that can be applied?
What do you think, was this just a one-time moisture event due to the drying out of the screed and the wall plaster?
The vapor barrier was certainly tight; I installed it myself 100%. I really don’t understand how so much water could have gotten there so quickly, it was only a few days.
Is there a rule of thumb that says it can’t mold at temperature x and humidity y?
How can you dry and close the ceiling at the same time, after all, the foil is now open? Does it help to drill air holes from the attic through the chipboards and artificially heat the roof truss with a construction dryer and heaters so that it is no longer so cold there and condensation does not occur below??
we are currently having problems with moisture. Our structure is 2.5 stories with a hipped roof. Living space only on the ground floor and first floor with wooden beam ceilings and chipboards, roof is cold. Two months ago, the screed was poured and also plastered. Then everything just stood for a while because we only got the electricity two weeks ago and could only then start heating and drying the building. My thought was that we first need to insulate the upper floor briefly (collar beam area with glass wool and a vapor barrier), then heat and dry. We have now done that and also carried out a screed drying program (partly at 45 degrees). Cross-ventilation, building drying, and heating have been running 24 hours a day for the past 10 days. Yesterday the shock: water on the vapor barrier foil on the interior walls at the seams. We removed the sheets; of course, everything was completely wet, took down the wool, and this morning it was dry again. But light mold had already started. What is best to do now? Apparently, the moisture from the plaster on the walls sneaked past the vapor barrier through the hollow bricks and condensed on the chipboards.
Is there a protective option for the chipboards and collar beams on the ceiling that can be applied?
What do you think, was this just a one-time moisture event due to the drying out of the screed and the wall plaster?
The vapor barrier was certainly tight; I installed it myself 100%. I really don’t understand how so much water could have gotten there so quickly, it was only a few days.
Is there a rule of thumb that says it can’t mold at temperature x and humidity y?
How can you dry and close the ceiling at the same time, after all, the foil is now open? Does it help to drill air holes from the attic through the chipboards and artificially heat the roof truss with a construction dryer and heaters so that it is no longer so cold there and condensation does not occur below??