Engineered Floor Trusses
Benefits of Engineered Floor Trusses
Open Gaps for Utilities: Engineered floor trusses create open gaps that allow for easy installation of heating, air, and other mechanical systems.
Structural Integrity: Unlike TGI joists, which have limitations and can’t accommodate large ducts, engineered trusses can fit larger ducts without compromising the structure.
Framer Friendly: They provide more surface area for gluing the subfloor, making the installation process easier for framers.
Installation Process
Before Installation: Keith shows the site before the trusses are installed, explaining the planning involved.
Mid-Stage: He revisits the site when it’s 98% framed, highlighting the benefits of having open web access for duct systems.
Specific Challenges and Solutions
Space Management: Keith discusses the importance of planning for mechanical systems' space requirements. He prefers engineered trusses to avoid weakening the structure by cutting through TGI joists.
Heating and Airflow: In colder climates, having heat come from below and push up is advantageous. Keith aims to integrate heating and air systems within the middle floor.
Final Installation and Benefits
Completion: Keith shows the completed installation, where all mechanical, electrical, plumbing, and heating systems fit neatly within the truss structure.
Avoiding Structural Damage: He emphasizes that cutting large holes in TGI joists can compromise structural integrity, which engineered trusses avoid.
Efficient Use of Space: The mechanical systems are strategically placed to avoid dropping ceiling heights unnecessarily, maintaining an open architectural feel.
Mechanical Room and Design Tips
Conditioned Space: Keith places the mechanical room within the insulated envelope of the home for efficiency.
Strategic Placement: He highlights the importance of placing mechanical rooms above laundry rooms to minimize the impact on the home's design and maximize space efficiency.
Functional Design: The design allows for easy integration of ductwork and other systems without sacrificing the structural integrity or aesthetic appeal of the home.
Conclusion
Keith concludes by emphasizing the advantages of engineered floor trusses in home building. He points out the cost savings, structural benefits, and improved design flexibility they offer.