BTF is a SMALL Architectural & Mechanical HVAC design firm: Specializing in space, energy & resource efficient homes

Putting your mind at ease: 

In our background we’ve seen firsthand the flawed stock plans sold online. We’ve seen furniture drawn half its size to make rooms ‘look big’

We’ve seen plans where the roof lines - are not  constructable

And plans where the stairways between floors, don’t even line up. 

You won’t have that from us. We’ve gone above and beyond to develop our plans to be contractor friendly and up to par! Our plans meet more than just the IRC. We’ve designed our plans to meet all of these:

At BTF we work to meet the newest available versions of the following codes & standards: 

• International Energy Conservation Codes (IECC)
• International Residential Code (IRC)
• American Society of Heating Refrigeration and Air Conditioning Engineers Standard on Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings (ASHRAE 62.2)
• U.S. Environmental Protection Agency Indoor (EPA) AirPLUS
• Vermont Residential Building Energy Standard (RBES)
• U.S. Department of Energy (DOE) - National Renewable Energy Laboratory (NREL) House Simulation Protocols 
• National Program Requirements of Energy Star Certified Homes
• U.S. Department of Energy (DOE) - Zero Energy Ready Home National Requirements
• U.S. Environmental Protection Agency (EPA) Solar Photovoltaic Specification, Checklist & Guide

The newest versions of these codes, standards & requirements, exceed many local & sate codes currently in place. However - we recommend you refer to your local building authority.  

Note: Our plans are designed for cold climates. 

None of our Net Zero or HVAC plans are designed for construction in the following states:  Alabama, Arkansas, District of Columbia, Delaware, Florida , Georgia, Hawaii, Kentucky, Louisiana, Mississippi, Oklahoma, South Carolina, Tennessee, Texas, Virginia