Granite Works of Waverly NY
Granite Works LLC
133 William Donnelly Parkway
Waverly, New York 14892
Phone: 607-565-7012
info@nygraniteworks.com
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Seam Expectation & Clarification

Seams

Countertop Seam Education

Product education is very important to having a successful project. One big topic is seams. It is important to have realistic expectations of seams in natural stone or a quartz countertop. Ideally a seam in the countertop should not be the first thing you notice when you walk into the room, however, this does depend on your focus. A great seam will be something you can still both see and feel, but may not be strikingly noticeable. It is best to look at samples of seams in both a natural stone countertop as well as quartz. It is very important to keep several points in mind.

Color & Movement
Some stone colors are much better at hiding seams then others. A stone with movement add another layer of challenge. It is important to keep this in mind as you select your countertop color.

Joint (Seam) Widths:
Joint width varies slightly depending on the material composition. Some materials hold a sharper cut and seam tighter. The joint width does not include the dimension of an arris on the stone edge. When an arris is used, the perceived joint width may be greater than the actual width due to the seam filler occupying the width of the arris. An arris (small chamfer on the edge - approximately 1/16" x 1/16") can be used to eliminate chips resulting from the diamond cutting of the stone.

Lippage:
The term lippage, as used in the stone industry, is the planar offset of the finished surfaces of two adjacent stone units. Due to the relatively tight seams used in countertop installations, even minor amounts of lippage are noticeable. Lippage may be unavoidable due to permanent warp in the slab stock. There should be no detectable lippage at the front edge of the countertop.

Exposed Edges:
Exposed Edges of adjacent stone slabs must be matched in thickness and properly installed so that neither the top nor bottom surface edge exceeds lippage tolerances.

Veining:
When using materials with obvious movement, all materials shall be installed with vein running in the same direction unless otherwise specified. For materials with very active movement, it should be expected that the result of your seam may contain a vein that flows into the seam and then stops. If your material selection has high movement and active veining it is suggested that you consider purchasing the Digital Layout Countertop Investment option. With this service, we involve you digitally via email to assist in visualizing how your countertops will be cut. This allows you to discuss countertop visual pattern flow goals.

Industry standards from the Marble Institute of America can be found in the Homeowners Guide to Countertop Installation.

Safety & Seam Requirements
Seam location and frequency is influenced by the available stock of the selected material, home access, worker safety & optimizing for install success. Seam location is also placed with consideration of the least vulnerable area for breakage. There tends to be some controversy as to whether seams should be placed in the center of a sink or in the center of a cook top cut out. Granite Works, LLC, is open to discussion on seam placement and we will give our best recommendation for seam placement.

During installation, typically, our first attempt to fit the seam together is not perfect. It may take a few attempts to dry fit and remove the tops from the home to adjust as needed. This process could require multiple attempts to achieve an acceptable fit. No need to worry, this is a normal procedure.

We thank you for taking the time to read this document and allowing us to educate you on Countertop Seams. We are excited for you to enjoy your new countertop!

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