Plastic deck board with separated drainage channel and hold down surface

摘要

The present invention provides a plastic panel assembly such as a plastic deck formed by at least first and second plastic boards. These boards are secured at an interlocked joint of the boards. Both of the boards have the same construction with each board comprising a main body portion having first and second edge regions to opposite sides of the board. The first edge region has a top surface which is a continuation of the top surface of the main body portion of the board. The first edge region also has a first locking part. The second edge region has a bottom surface which is a continuation of the bottom surface of the main body portion of the board and also has a second locking part. The interlocked joint between the boards is formed by engagement of the first locking part of the first edge region of the first board with the second locking part of the second edge region of the second board. The assembly further includes both a moisture drainage channel and a mechanical fastener receiving surface which are separated from one another at the interlocked joint. At least one of the locking parts is provided with a sealing strip to seal the interlocked joint and reduce friction on abutting surfaces.