ProVia has expanded the company’s siding lineup with the addition of Harbor Mill™ polypropylene Shake and Shingle Siding, providing a superior cladding option for building professionals.

Remodelers, builders and architects can now offer homeowners the rustic look of traditional rough-sawn shingle and staggered hand-split shake, minus the expense and high maintenance of cedar.

To preserve this authentic look, both profiles are modeled after hand-picked cedar pieces using highly accurate laser scanning to ensure the finest details and textures are carried over into each Harbor Mill Shake and Shingle. The result is a product that not only looks ultra-realistic but has the versatility and ease of maintenance that ProVia siding products are known for.

Engineered for Easy Installation

But this siding is more than just a pretty façade. Harbor Mill was designed with the installer in mind, incorporating built-in features that aid in a more efficient, hassle-free installation. In addition to the rigid, lightweight profile that makes it easier to handle, Harbor Mill panels include:

Drop Guard (A)—Secures the panel in position while the installer fastens it to the wall. This hands-free advantage results in a straighter set-up, and less effort for the installer.

Continuous Lock (B)—Anchors each panel together, providing stability and durability.

Alignment Guide (C)—Prevents the panel from unlocking from the overlapping panel while leaving room for expansion and contraction.

Stagger Pattern Marks (D)—Indicate the order in which the panels are cut to maintain a proper stagger pattern. 

Matching Corners (E)—Ensure a seamless look with coordinating shake or shingle grain patterns.

Seam Lock (reverse side)—Makes joint overlaps effectively invisible, even to the trained eye. The result is a smooth, seamless appearance with great curb appeal.

These details make it easier to position and fasten the siding panels—a huge advantage when you’re 20 feet high on a ladder at the jobsite! Learn more about Harbor Mill Polypropylene Shake and Shingle Siding.

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