Hello everyone,
Our timber frame house interior was finished with Fermacell boards attached to the installation layer using staples. After the joint filling (Q3 level), these staples can still clearly be felt as indentations when running your hand over the surface and, of course, are also visible as small slits. Now there is uncertainty about whether this corresponds to the definition of a Q3 joint filling, and we also worry that these marks will remain visible afterward. The company applying the wallpaper has withdrawn and insists that at Q3 everything - including the staples - must be completely smooth. The joint filler disagrees. We would appreciate clear statements or helpful links on this. Thanks in advance!
Our timber frame house interior was finished with Fermacell boards attached to the installation layer using staples. After the joint filling (Q3 level), these staples can still clearly be felt as indentations when running your hand over the surface and, of course, are also visible as small slits. Now there is uncertainty about whether this corresponds to the definition of a Q3 joint filling, and we also worry that these marks will remain visible afterward. The company applying the wallpaper has withdrawn and insists that at Q3 everything - including the staples - must be completely smooth. The joint filler disagrees. We would appreciate clear statements or helpful links on this. Thanks in advance!
Hello Mycraft,
Thank you for your reply. It’s not as if I forced you to answer.
But regarding that: yes, there is a lot of information available. Especially standards on quality levels. However, these are formulated so generally that unfortunately they don’t help me much! But if you have a link that specifically answers my question...
Thank you for your reply. It’s not as if I forced you to answer.
But regarding that: yes, there is a lot of information available. Especially standards on quality levels. However, these are formulated so generally that unfortunately they don’t help me much! But if you have a link that specifically answers my question...
Well, I would say... pictures speak louder than a thousand words, so please show your walls.
Otherwise, this information was found within 2 seconds:
"Under certain circumstances, the filled surface may need to be sanded. Even at quality level Q3, joint marks can appear under raking light. However, these marks are less noticeable compared to standard filling at quality level Q2.
For fillings done according to quality level Q3, the increased requirements concerning flatness tolerances according to DIN 18202, Table 3, Line 7 should be contractually agreed upon."
Source:
Filling quality level Q3
Otherwise, this information was found within 2 seconds:
"Under certain circumstances, the filled surface may need to be sanded. Even at quality level Q3, joint marks can appear under raking light. However, these marks are less noticeable compared to standard filling at quality level Q2.
For fillings done according to quality level Q3, the increased requirements concerning flatness tolerances according to DIN 18202, Table 3, Line 7 should be contractually agreed upon."
Source:
Filling quality level Q3
blockhauspower14 Dec 2013 18:01There is a clear definition of quality levels.
Q1: filling joints and screw holes.
Q2: same as Q1, with wider filling of joints, about 30cm (12 inches).
Q3: same as Q2, plus thoroughly smoothing the entire surface to close the pores.
Q4: same as Q3, with an additional 2-3mm (0.08-0.12 inches) thick layer of filler applied over the whole surface.
With Q3, no marks should be visible under raking light, and this level is sufficient for wallpapering with non-woven (fleece) wallpaper.
Best regards
Q1: filling joints and screw holes.
Q2: same as Q1, with wider filling of joints, about 30cm (12 inches).
Q3: same as Q2, plus thoroughly smoothing the entire surface to close the pores.
Q4: same as Q3, with an additional 2-3mm (0.08-0.12 inches) thick layer of filler applied over the whole surface.
With Q3, no marks should be visible under raking light, and this level is sufficient for wallpapering with non-woven (fleece) wallpaper.
Best regards
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