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Old 01-16-2008, 08:04 PM   #1 (permalink)
Fix2Relax
Junior Member

 
Join Date: Jan 2008
Location: Gaithersburg, MD
Posts: 4
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Hairline Crack in Granite--Old Installation

I recently discovered a hairline fissure in our 3cm Rosa Beta granite. Yes, it is in front of the sink, and No, it was not rodded. I am comfortable though that it was installed properly about 18 months ago and it may be due to some settlement or seasonal movement of the cabinets, and floor joists. Further, when I put a straight edge across the damaged area, there is a slight "hump" so I know that there is some deformation taking place.

The overall piece is extremely large and there is nothing to be gained by doing anything but on onsite repair. Right now the fissure is about one inch long, starts at the counter edge and does not appear to be of any consequential depth. Both sides of the fissure are even and there is only an extremely slight discontinuity that one can find only be looking carefully with the light glancing off the surface. The overhang is about 1-1/2 inch, the remaining front rail is fine and is supported by the cabinet edge and the undermount sink rim. I assume the bottom side of the stone is under compression due to the "hump", and assuming there is no further movement, all things should hopefully remain static.

How should I monitor this? I am comfortable that the installation was done properly although I was annoyed that they did not "rod". Despite that, the shimming, handling and seams were done extraordinarily well and I don't think calling back the installer after 18 months is going to help.

If the fissure deepens or lengthens, is the preferred repair to widen it to a suitable depth and use an epoxy filler. Luckily Rosa Beta is easy to work since it's coloration is so variable that, if it is finished well, it will not show.

Please--no "I told you so's on the rodding" Not sure that this would have ocurred anyway.

Thanks for reading.

David
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