H
Holster
We had a 50mm anhydrite screed down over a DPM around 100 days ago. For the first 50 days the conditions were far from ideal for drying @1mm/day (early Feb, definitely no where near 20 degrees air temp, fresh plaster throughout, room open to elements). After around 50 days we comissioned the UFH as recommended, and this has been running along with a dehumidifier for a few weeks now.
The floor wasn't sanded after 7 days, but was sanded with an STR around 70 days in.
We've done a RH floor box test and also a multiple tramex tests. Unfortunately the readings still appear to be too high. The driest part of the floor is where the floor prep machine has taken the scree down to white colour with a rough "sandpaper" like feel. This currently reads 1.0 on the tramex and 58% RH. The rest of the floor is pink/brown in colour with a very smooth-to-touch feel. Readings on this part of the floor are consistantly around 3.0 on the tramex everywhere (87%RH on the one section I measured).
So... In summary, the UFH has been on for around 3-4 weeks during good weather, with 1.5 weeks in combination with a dehumidifier.
When you remove the laitance, what sort of texture should you be left with? I'm wondering if the laintance has been baked on by the UFH, and we've only actually properly removed it in one place (where it's more white and rough to the touch).
Any advice would be gratefully received! We're getting desperate now!
The floor wasn't sanded after 7 days, but was sanded with an STR around 70 days in.
We've done a RH floor box test and also a multiple tramex tests. Unfortunately the readings still appear to be too high. The driest part of the floor is where the floor prep machine has taken the scree down to white colour with a rough "sandpaper" like feel. This currently reads 1.0 on the tramex and 58% RH. The rest of the floor is pink/brown in colour with a very smooth-to-touch feel. Readings on this part of the floor are consistantly around 3.0 on the tramex everywhere (87%RH on the one section I measured).
So... In summary, the UFH has been on for around 3-4 weeks during good weather, with 1.5 weeks in combination with a dehumidifier.
When you remove the laitance, what sort of texture should you be left with? I'm wondering if the laintance has been baked on by the UFH, and we've only actually properly removed it in one place (where it's more white and rough to the touch).
Any advice would be gratefully received! We're getting desperate now!
