Hello everyone,
The windows were installed by the window installer, and after I was somewhat surprised by the quality of the work, I had an inspector sent out who identified several defects.
Unfortunately, I only have a negative example from my construction site. So my question is: what does a proper airtight tape installation look like? The inspector said it should be sealed airtight on the inside reveal. Does that mean the tape runs continuously on each side and lies completely flat against the wall?
Here’s more or less what it looks like in my case:
The good thing is that the installer understands that this is not acceptable. How to correct this without removing all the windows again (some were installed using a crane) is something we will try to clarify tomorrow on site. Would it be an option to add another overlapping layer of tape?
I would appreciate any advice.
The windows were installed by the window installer, and after I was somewhat surprised by the quality of the work, I had an inspector sent out who identified several defects.
Unfortunately, I only have a negative example from my construction site. So my question is: what does a proper airtight tape installation look like? The inspector said it should be sealed airtight on the inside reveal. Does that mean the tape runs continuously on each side and lies completely flat against the wall?
Here’s more or less what it looks like in my case:
The good thing is that the installer understands that this is not acceptable. How to correct this without removing all the windows again (some were installed using a crane) is something we will try to clarify tomorrow on site. Would it be an option to add another overlapping layer of tape?
I would appreciate any advice.
xMisterDx schrieb:
You have an expert. Why pay them if you have to ask for the proper repair on an online forum? The expert’s opinion is more that he evaluates the execution according to the state of the art. Finding a solution is the responsibility of the trade that messed it up.
He simply wasn’t sure whether it could be reworked like that. Scraping away the foam and applying a second layer came up as a basis for discussion with the window installer.
xMisterDx schrieb:
From what I know:
You stick the sealing tape onto the frame, there it is self-adhesive. Then a thick bead is applied onto the reveal, for example an adhesive from Illbruck, and the sealing tape is pressed into it. If you have handled a cartridge like that, you can already tell by the nozzle that a fairly thick layer of adhesive has to be applied; it has nothing to do with the 3mm (1/8 inch) gaps you know from silicone.
Masonry is not a perfectly even surface, so how should a self-adhesive tape ever be airtight there? At best, it compensates for 0.1mm (0.004 inch), if even that. Yes, the sealing tape is definitely self-adhesive even in the reveal area. It is the Greenteq Plena Top, which also has adhesive “reveal surfaces.”
I hope the inventor had a reason for that... but I’m not very familiar with it.
xMisterDx schrieb:
There is no place for foam there. You mean in this reveal area, correct? Yes, I agree with that.
Is the excess foam usually trimmed beforehand, or are some better able to control the amount when foaming?