For Typical Works, a high-performance home is defined by maximal efficiency in material and energy usage, carbon-neutral lifetime footprint, affordability, and longevity. Post-Coal is our proof of concept.
It features what we are calling a Tight Frame structure.
This uses significantly fewer resources than traditional framing. Taking advantage of dimensional efficiencies, the 4' on-center post spacing reduces waste and accelerates construction.
The Tight Frame structure was erected, sheathed, and weatherproofed in two weeks by a four-person crew. Plywood acts as both exterior sheathing and the interior finish.
This home joins a Tight Frame structure with a PERSIST envelope.
Using Whole Site Life-cycle Assessment, we balance the carbon footprint required to build the house, offset with carbon credits, and harvest on-site renewable energy. This home will achieve the International Living Future Institute's Zero Carbon and Zero Energy certifications.
How does a Tight Frame compare?
A Tight Frame structure uses 77% fewer pieces.
In a 4' bay:
· Standard framing requires 30 members, a 25% framing factor.
· Advanced framing requires 20 members, a 22% framing factor.
· Tight Framing uses only 7 members, a 15% framing factor.
This building method is deconstructable and reusable. Screws, not nails, are used wherever possible. Standard lumber or mass timber are joined with simple off-the-shelf connections.
The reduction of interior finish material (no drywall) lowers costs and reduces scope, but also shrinks the carbon footprint: 1.9 tons (360kg CO2e) of drywall carbon emissions saved.
Tight Frame + PERSIST isn't like any other building method out there:
· No eave or rake overhang needed.
· No thermal bridges.
· No leaks or gaps.
· No interior finish required.
Post-Coal will be a testament to just how far we’ve come from coal mining to a post-carbon future.
Climate Zone: 5B
Winter Design Temperature: -5° F
Ground Snow Load: 130 psf
Wind Design Speed: 110 mph
Seismic Design Category: C
Frost Depth: 24"
Termite Hazard: Slight to Moderate