Siding Specifications

Best Siding for Vancouver WA, & the PNW
High Performance Homes exclusively installs James Hardie fiber cement siding as part of complete exterior systems designed around coordinated components rather than individual materials applied independently. The products we use are selected for long-term durability in Vancouver and Pacific Northwest conditions, including consistent exposure to rain, moisture, and seasonal temperature changes.

Siding Parts: What They Are and What We Use

High Performance Homes installs James Hardie siding as part of a complete exterior assembly, with siding, trim, soffit, and moisture-management components working together across the home.

Fiber cement siding boards

James Hardie fiber cement siding forms the primary exterior cladding across the home’s exterior walls. The boards are designed for long-term durability and resistance to moisture exposure common in the Pacific Northwest.

Trim components

Used around edges, windows, doors, corners, and transitions to create finished detailing throughout the siding layout.

Soffit components

Installed beneath roof overhangs to complete the exterior and help protect the area between the eaves and exterior walls.

Flashing components

Used around openings, joints, and penetrations to help manage water at vulnerable areas of the exterior.

Weather-resistive barrier

Installed beneath the siding as part of the exterior wall assembly to provide an additional layer of moisture management.

James Hardie Siding Styles and Profiles

James Hardie fiber cement siding is available in several profiles that provide different exterior styles while maintaining the durability and performance of fiber cement.

Hardie® Plank

Horizontal lap siding available in smooth and wood-grain textures for a range of traditional and contemporary exteriors.

Hardie® Panel

Vertical siding panels that can be used alone or paired with trim battens to create a board-and-batten appearance.

Hardie® Shingle

Shingle-style fiber cement siding available in straight and staggered edge profiles for added texture and architectural detail.

Hardie® Artisan® Siding

A thicker siding collection available in profiles including lap, shiplap, square channel, and V-groove for more pronounced architectural detailing.

Multiple James Hardie profiles can also be combined across the same exterior to create contrast between different areas of the home.

Material Composition

James Hardie is one of the most widely recognized fiber cement siding manufacturers in the country and is known for producing siding products designed for long-term durability in Pacific Northwest conditions. High Performance Homes exclusively uses James Hardie fiber cement siding for all siding installations.

James Hardie siding is manufactured from a composite of:

Portland cement

Provides strength and structural durability across exterior wall surfaces.

Sand

Helps create dimensional stability and consistency throughout the siding boards.

Cellulose fibers

Reinforces the material while supporting long-term performance and flexibility.

These materials are formed into rigid boards under controlled manufacturing conditions before being cured, finished, and prepared for installation. Consistent manufacturing standards help ensure uniform board sizing, finish quality, and long-term product reliability.

Siding Layer Structure

Siding functions as part of a larger exterior wall assembly rather than as a standalone surface. A typical assembly may include:
Fiber cement exterior cladding
Weather-resistive barrier
Structural sheathing
Wall framing
Together, these layers create the exterior wall system, with the siding providing the finished outer surface and the underlying components supporting structural and moisture-management needs.

Dimensional Characteristics

James Hardie siding is manufactured in standardized board and panel formats, with dimensions determined by the selected product and profile.

Common structural characteristics include:

Overlapping lap installation patterns

Defined exposure widths per profile type

Modular board and panel dimensions for field layout

Factory-formed edges for joint alignment

Dimensions vary depending on the James Hardie product selected and the design configuration.

Finish Types

Fiber cement siding may be installed with a factory-applied ColorPlus® Technology finish or as primed siding intended for field painting.

ColorPlus® finishes are applied and cured during manufacturing to create a consistent finish designed to resist fading, chipping, and cracking over time. Primed products provide greater flexibility when a custom field-applied paint color is preferred.

ColorPlus®

Factory-Applied Finish

Primed

Field-Finished Boards

Siding Compatibility

Siding is designed for integration with standard residential construction assemblies, including:

Wood-framed wall systems

Engineered structural wall systems

Standard window and door assemblies

Conventional roofing and trim interfaces

Compatibility is based on manufacturer-defined installation requirements.

Product Standards

James Hardie fiber cement siding is manufactured under controlled specifications that define:

Material composition consistency

Board formation and curing processes

Finish application standards

Dimensional tolerances for installation

These standards govern how components are produced and assembled into siding.

Frequently Asked Questions

The way components are combined influences how the exterior handles moisture, movement, and long-term exposure. Properly coordinated siding reduce weak points across the exterior.

Yes. Layout and detailing can influence how often maintenance is needed and how the exterior performs over time.

Yes. Compatibility between components is guided by manufacturer requirements and design tolerances.

Not always. Some siding includes additional accessory elements depending on design requirements and exterior complexity.

Start Your Exterior Project

When it comes to siding, the details behind how it’s built and configured matter just as much as the finished look, from the materials used to the way everything is put together. You can also learn more about our materials, installation process, and warranty coverage.

Request an estimate today to get started with High Performance Homes.

Request an On-site FREE Estimate

A real person will receive this and contact you to arrange a convenient time for you to meet with us.

1
2
Secure Icon and Trusted Icon.