One likely culprit is the improper installation of the unit itself.
Gap between granite countertop and wall.
I m not so upset where it will be covered by tile backsplash but on the wall that will be painted the granite place told me to have my husband caulk the area with painters caulk.
If this is granite i would have a granite fabricator cut pieces to be installed as a backsplash piece.
Cut 1 2 sheet rock to size set the bottom edge of the rock down into the metal track and secure sheet rock.
If the granite is not secured yet we typically cut a notch in the sheetrock to allow the tight corner to slide into the wall thus closing the gap.
When a gap breaks out between a countertop and the wall there are innumerable ways that this could ve occurred.
Measure a stick of wood or plastic quarter round or cove trim molding to the length of the countertop and mark it.
Good luck with your project.
You ll need a drill with a no.
Place a sleek metal chrome u shaped track along the top edge of the back splash.
There are a couple options to fix this problem.
If the countertop is already set you can float out the wall with drywall mud prior to installing your tile backsplash.
When a countertop unit is installed you want to ensure that whoever is installing or has installed the unit has done so correctly.
Cut the molding at the pencil mark with a hand saw.
Measure the length of the countertop.
2 phillips bit a flat pry bar wood shims and a hammer.
In a few places of my newly installed granite there is a 1 4 inch gap between where the wall meets the granite.
Close the gap between counter and wall if the gap between the countertop and backsplash is more than 3 8 inch it s generally too wide to fill and is best handled with trim but you can try to close the gap to give yourself the caulk option.