top of page
BamCore Official Logo

Why Your Home Is Wasting 25% of Its Heating and Cooling Budget—Psst, It's Your Framing Factor

  • Writer: Tobe Sheldon
    Tobe Sheldon
  • Jun 18
  • 8 min read

(And How to Fix It During Construction)


If you're planning to build a new home, you have a once-in-a-lifetime opportunity to avoid a costly mistake that affects millions of homeowners. Most people unknowingly design homes that throw money out the window every month on energy bills. The culprit isn't your HVAC system or windows—it's hiding inside your walls, and once your home is built, it's virtually impossible to fix.


Traditional home construction methods create a hidden inefficiency that forces your heating and cooling system to work up to 25% harder than necessary, costing you hundreds of dollars annually while making your home less comfortable. The problem lies in something called "framing factor"—a construction industry term that measures how much of your wall space is occupied by wooden studs instead of insulation.


Here's the critical point: Your framing choice is permanent. 

Unlike upgrading appliances, replacing windows, or adding insulation, your home's structural framework is locked in place the moment construction is complete. This makes the framing decision one of the most important—and irreversible—choices you'll make during the building process.


Recent innovations in construction technology are finally addressing this century-old inefficiency, offering solutions that can cut material usage by up to 75% while dramatically improving your home's energy performance. At the forefront of this revolution is BamCore, whose Prime.24 and DuoShear framing systems are redefining what's possible in modern building practices.


What You Can Change Later vs. What You Can't

When building a new home, you'll make hundreds of decisions—from flooring materials to light fixtures. Most of these choices can be changed later, albeit with varying degrees of expense and effort. Your framing system is different. It's the skeleton of your home, and once the walls are up and finished, it becomes permanently inaccessible.


Easily Changeable Components:

  • Appliances (5-15 year replacement cycles)

  • HVAC equipment (15-20 year lifespan)

  • Windows and doors (with significant renovation)

  • Insulation (in accessible areas like attics)

  • Interior finishes and fixtures


Permanently Fixed Components:

  • Structural framing (lifetime of the home - 50-100+ years)

  • Foundation systems

  • Basic electrical and plumbing rough-in locations


This permanency makes your framing choice uniquely critical. While you might upgrade your HVAC system twice over 30 years, your framing system will remain unchanged for the entire life of your home.


The Lifetime Cost of Poor Framing Factor Decisions

Traditional wood-framed walls typically have framing factors ranging from 15% to 27%, meaning up to more than a quarter of your wall area consists of wood studs rather than insulation. This high framing factor creates permanent inefficiencies that compound over decades:


  1. Energy waste that never stops: Wood conducts heat 400 times better than insulation, creating pathways for energy loss that persist for the life of the home

  2. Oversized HVAC systems: Higher heating and cooling loads require larger, more expensive equipment

  3. Reduced comfort: Thermal bridging creates cold spots and drafts that no amount of later upgrades can fully eliminate


Studies by ASHRAE and other building science organizations have found that the average American home has a framing factor of approximately 25%. Over a 30-year period, this inefficiency can cost homeowners thousands of dollars in unnecessary energy bills—money that could have been saved with a better initial framing choice.


Comparison of high thermal bridging and loose building envelope of stud framing versus low thermal bridging and tight building envelope of BamCore framing.

BamCore's Prime.24: Redefining Framing Efficiency

For new home construction, BamCore's Prime.24 framing system represents a fundamental shift in construction methodology, offering a solution that dramatically reduces framing factor while enhancing structural performance.


Material Reduction Through Innovative Design

The Prime.24 system achieves an impressively low framing factor of just 10.9%, less than half that of conventional framing. This remarkable reduction is possible through BamCore's innovative approach to wall assembly:

  • Engineered panels: The system uses custom-prefabricated panels that provide superior load-bearing capacity without requiring the dense network of studs found in traditional framing.

  • Strategic stud placement: With studs placed 24 inches on center (compared to the standard 16 inches), the system minimizes thermal bridging while maintaining structural integrity.

  • Integrated strength: The entire wall assembly works together to distribute loads more efficiently, eliminating the need for excessive framing members.



Graph showing reduced lumber requirements for Prime.24 when compared to 2x4 and 2x6 stud construction.

Dramatic Lumber Reduction: The Prime.24 system's low framing factor translates directly into substantial lumber savings per wall section. While traditional 2x4 framing at 16 inches on center requires approximately 1.49 board feet per linear foot, and 2x6 framing requires 2.24 board feet per linear foot, the Prime.24 system significantly reduces these requirements through its engineered panel design that eliminates the majority of conventional studs. This reduction in nominal board feet per wall means builders can achieve superior structural performance while using a fraction of the lumber typically required for traditional stick-built construction.


The result is a wall system that uses significantly less lumber while providing more than double the load-bearing capacity of traditional 2×4 framing—up to 9,080 pounds per linear foot. This strength-to-material ratio represents a quantum leap in framing efficiency.


Thermal Performance That Lasts a Lifetime

Beyond material reduction, the Prime.24 system's low framing factor delivers substantial thermal performance improvements:

  • Permanently reduced thermal bridging: Fewer studs interrupting the insulation layer means heat transfer through walls is minimized for life

  • Higher effective R-value: The system can achieve R-values up to 22.7, outperforming traditional framing methods permanently

  • Future-proof building envelope: The tight construction creates efficiency that improves over time as energy costs rise


DuoShear: The Ultimate One-Time Investment in Efficiency

For those building new homes who want maximum long-term efficiency, BamCore's DuoShear framing system takes material efficiency to the highest level possible.


Unprecedented Framing Factor Reduction

The DuoShear system achieves a remarkably low framing factor of just 6.67%, representing a reduction of approximately 75% compared to conventional framing. This extraordinary efficiency is made possible through:

  • Dual-panel design: The system consists of two parallel runs of panels—one inside and one outside—creating a nearly hollow building envelope that eliminates the need for traditional studs

  • Structural panel strength: Each panel is engineered to distribute loads across its entire surface, allowing the entire wall to function as a structural element

  • Precision manufacturing: Custom prefabrication ensures optimal material usage with minimal waste



Graph showing a reduction in lumber requirements and thermal bridges when compared to 2x4 and 2x6 construction

Maximum Lumber Efficiency: The DuoShear system represents the pinnacle of lumber efficiency in wall construction, requiring minimal nominal board feet per wall compared to traditional methods. The system's 6.67% framing factor means that conventional lumber requirements are reduced by approximately 75%, as the dual-panel design eliminates the need for the extensive network of studs, headers, and blocking required in traditional framing. This dramatic reduction in board feet per linear foot of wall makes DuoShear one of the most material-efficient framing systems available, delivering exceptional structural performance while using a fraction of the lumber typically consumed in conventional construction.


With a vertical load-bearing capacity of 9,080 to 11,210 pounds per linear foot, the DuoShear system delivers more than twice the strength of traditional 2×6 stud framing while using a fraction of the material.


Elimination of Additional Materials

Beyond framing factor reduction, the DuoShear system offers additional material savings that further enhance its sustainability profile:

  • No exterior wall OSB required: Unlike traditional construction, which typically requires OSB sheathing on exterior walls, the DuoShear system eliminates this need entirely, as the panels themselves provide the necessary structural support and sheathing.

  • Reduced interior finishing materials: The system can reduce or eliminate the need for certain interior finishing materials, further decreasing the overall material footprint.


The Construction Window: Making the Right Choice When It Matters


Pre-Construction: Your Only Opportunity

During the design and planning phase, you have complete freedom to choose any framing system. This is when the decision is easiest and least expensive to make. Key considerations for new construction include:

Design Flexibility: Both Prime.24 and DuoShear systems can accommodate standard architectural plans with minimal modifications, making the transition from traditional framing straightforward.

Cost-Benefit Analysis: While advanced framing systems may have higher upfront costs, the lifetime energy savings, reduced HVAC sizing requirements, and construction efficiency often result in net positive returns.


During Construction: Last Chance for Optimization

Once construction begins, your options become limited to the chosen framing system. However, you can still optimize within that choice:

  • Ensure proper installation techniques to maximize thermal performance

  • Coordinate with insulation contractors to take full advantage of reduced thermal bridging

  • Plan HVAC sizing based on improved building envelope performance


Post-Construction: Living with Your Decision

Once walls are closed up and finished, your framing choice becomes a permanent feature. The only ways to change it would involve:

  • Complete demolition and reconstruction (cost-prohibitive)

  • Major renovations that expose framing (limited to specific areas)

  • Working around the existing inefficiencies with band-aid solutions

This permanency makes the initial choice critical for long-term satisfaction and efficiency.


Comparative Analysis: The Lifetime Impact of Your Choice

Framing System


Framing Factor

30-Year Energy Impact

Material Efficiency

Changeability

Traditional 2×4/2×6 (16" o.c.)

23-27%

Baseline energy costs

Standard material use

Permanent

Advanced 2×6 (24" o.c.)

15-20%

~15% energy savings

~25% material reduction

Permanent

BamCore Prime.24

10.9%

~35% energy savings

~60% material reduction

Permanent

BamCore DuoShear

6.67%

~45% energy savings

~75% material reduction

Permanent

This comparison illustrates how your one-time framing choice creates permanent differences in both energy performance and material efficiency that compound over decades.


Right-Sizing Your HVAC: A Permanent Benefit

One of the most significant advantages of choosing advanced framing during construction is the opportunity to permanently right-size your HVAC equipment. A tighter, more thermally efficient building envelope reduces heating and cooling loads, allowing for:

  • Smaller heat pump or HVAC system sizing: Potentially reducing equipment costs by 20-30%

  • Lower energy consumption: Reduced loads mean lower operating costs for life

  • Enhanced comfort: More consistent temperatures and improved humidity control

  • Future-proofing: Better performance as energy costs rise over time


Traditional homes often require oversized HVAC systems to compensate for thermal bridging and air leakage. With BamCore's systems, you can install smaller, more efficient equipment that operates more effectively throughout its lifetime.


Construction Efficiency: Getting It Right the First Time

Beyond long-term performance, BamCore's systems offer construction advantages that only matter during the building phase:

Accelerated Timeline

Both Prime.24 and DuoShear systems are designed for rapid assembly:

  • Pre-cut openings for doors, windows, and utilities eliminate on-site cutting

  • Color-coded installation maps guide rapid, accurate assembly

  • Sequential panel delivery eliminates guesswork and improves workflow

These efficiencies can reduce framing time by up to 50%, accelerating project timelines and reducing labor costs—benefits that only apply during construction.


Minimized Waste

Traditional framing methods generate substantial waste, with an estimated 8,000 pounds of construction waste for a typical 2,000-square-foot home. BamCore's systems dramatically reduce this through precision prefabrication and optimized material usage—waste reduction that only matters during the building process.


Making the Decision: Your Action Plan for New Construction


For Homeowners Planning to Build

  1. Research early: Investigate framing options during the design phase when changes are easiest

  2. Find qualified builders: Seek contractors experienced with advanced framing and innovative solutions or willing to learn

  3. Calculate lifetime costs: Consider energy savings and HVAC sizing benefits over 20-30 years

  4. Compare total value: Balance upfront costs against permanent efficiency gains

  5. Consider resale value: Energy-efficient homes increase buyer desirability


For Builders and Developers

  1. Educate clients: Help homeowners understand the permanency of framing decisions

  2. Offer options: Present traditional and advanced framing with lifecycle cost comparisons

  3. Market the benefits: Position advanced framing as a premium, permanent upgrade


Conclusion: Your One Chance to Build It Right

BamCore's Prime.24 and DuoShear framing systems represent more than just construction innovations—they're permanent solutions to fundamental problems in traditional building methods. By dramatically reducing framing factors to 10.9% and 6.67% respectively, these systems create lifetime value that begins the day you move in and continues for decades.

The critical insight for anyone building a new home is that your framing choice is irreversible. Unlike appliances, flooring, or even windows, your structural framework becomes a permanent part of your home's DNA. This makes the decision to invest in innovative advanced framing systems not just smart, but essential for anyone serious about long-term efficiency and comfort.


Every month you live in your new home, you'll either benefit from the foresight to choose efficient framing, or pay the price for accepting traditional methods. The choice is yours, but you only get one chance to make it. Choose wisely—your future self will thank you for the next 50 years.



Comentarios


bottom of page