Diana Ln Lexington Foundation & Rough Framing

A 12-inch thick foundation wall was crucial for this Lexington home because it ensures long-term structural stability and load-bearing capacity. The thicker wall distributes weight more effectively, especially since this design uses a BCI 11-7/8″ joist system to create open spans without additional supports. The foundation transfers loads from the framing (including 2×6 walls and beams) directly into the ground, preventing settling or cracking over time.

Key benefits of this approach include:

• Enhanced durability against soil pressure and seasonal shifts.
• Better support for the open-concept design with fewer interior load-bearing walls.
• Long-term cost savings by minimizing future foundation repairs.

This extra-thick foundation is a hallmark of Millhawlk’s commitment to building homes that last, even in regions with variable weather conditions.

The BCI (Boehringer Collateral I-joist) 11-7/8″ joist system was selected for its ability to span wider distances without requiring intermediate supports, which is ideal for open floor plans. Unlike traditional solid lumber joists, these engineered I-joists are lightweight yet incredibly strong, reducing the risk of sagging or deflection over time.

Advantages of this system include:

• Greater design flexibility for vaulted ceilings and large rooms.
• Faster installation due to pre-manufactured precision.
• Improved energy efficiency since HVAC and plumbing can easily run through the open-web design.

By using BCI joists, Millhawlk maximized both structural integrity and aesthetic appeal, allowing for features like the cathedral ceiling in the primary suite.

AdvanTech’s 3/4″ tongue-and-groove subflooring was chosen for its exceptional moisture resistance and stiffness, preventing squeaks and warping over decades of use. Unlike standard plywood, AdvanTech uses proprietary resins that repel water, making it ideal for humid climates or spills.

Homeowners gain:

• Quiet floors – The tight interlocking design minimizes movement.
• Stronger foundations for tile, hardwood, or other finishes.
• Warranty protection – Many competitors lack AdvanTech’s 500-day exposure guarantee.

Millhawlk prioritizes materials that add value, and AdvanTech ensures this home’s floors remain stable and silent for years.

Zip System sheathing integrates a moisture-resistant barrier directly into the panels, eliminating the need for separate house wrap. This innovation provides superior protection against air and water infiltration, which is critical in Lexington’s climate.

Key advantages include:

• Time savings – No need to install a secondary weather barrier.
• Enhanced durability – The airtight seal reduces risk of mold or rot.
• Energy efficiency – Fewer drafts mean lower heating/cooling costs.

Traditional OSB with house wrap requires more labor and can leave gaps if improperly installed. Zip System’s seamless coverage aligns with Millhawlk’s standards for high-performance, low-maintenance homes.

Millhawlk’s Station Process streamlines rough framing by dividing the job site into organized “bays,” where framing components are pre-assembled before installation. This method reduces clutter, minimizes errors, and accelerates construction—evidenced by this home’s framing being completed in just three weeks.

The process stands out because:

• Workflow efficiency – Crews move systematically, avoiding bottlenecks.
• Safety improvements – Fewer tripping hazards and better tool management.
• Higher precision – Pre-cut and labeled materials reduce waste.

Traditional framing often involves on-site measuring and cutting, which can slow progress. The Station Process ensures consistency, speed, and a smoother inspection pass—key reasons why this home’s framing had zero issues.