Kirsten Dirksen
Sinking monolithic ferro-cement shells beneath the frost line locks ambient baselines near 58 degrees Fahrenheit, eliminating draft-driven heat loss during sub-zero Canadian freezes.
AI-assisted summary of Underground dome house of the family who led geese to fly home — original source. Check the original for full context.
Source published:
Key ideas
- Paula and the late Bill Lishman constructed a 2,600-square-foot underground dome residence in Ontario, cutting off a glacial moraine ridge and covering ferro-cement domes with 12 to 14 inches of soil below the frost line. (0:14)
- By leveraging the earth's thermal inertia, the structure maintains a constant soil baseline of 58 to 59 degrees Fahrenheit, effortlessly moderating ambient outdoor temperature swings that exceed 100 degrees Fahrenheit across seasons. (3:23)
- To solve cold-air loss common in standard front-opening refrigerators, Bill engineered a cylindrical, foot-actuated pop-up fridge that lifts vertically out of the kitchen counter using compressed air while trapping heavy cold air in the shaft. (6:34)
- Interior walls are finished with crushed white marble dust troweled over ferro-cement to reflect natural sunlight streaming through circular overhead skylights, disproving the notion that earth-sheltered living must be dark. (3:23)
Detailed notes
## Background Published on August 17, 2019, by Kirsten Dirksen on YouTube, this video explores the earth-sheltered home of Paula and the late Bill Lishman. According to the page description, the couple moved underground to escape harsh Canadian winters by excavating a hilltop, erecting ferro-cement domes covered with soil, and pioneering unconventional domestic solutions like pop-up refrigeration and bird-migration techniques that inspired the film 'Fly Away Home.'
## TL;DR Paula Lishman leads an in-depth tour through her 2,600-square-foot earth-integrated dome house, demonstrating how living below the frost line harnesses thermal mass to keep the interior comfortable through extreme Canadian seasonal shifts. The home utilizes curved ferro-cement construction finished with reflective powdered marble and overhead skylights, creating brightly illuminated, cave-like spaces without flat walls or conventional retail furnishings. Alongside structural engineering insights, the tour highlights innovative custom fixtures like a pneumatic pop-up refrigerator and built-in storage alcoves. Paula also reflects on her family's creative pursuits, including her pioneering knitted fur business and the late Bill Lishman's renowned ultralight flights guiding migratory birds.
## Atmosphere & style The video carries an intimate, serene, and gently wondrous tone, driven by Paula Lishman's relaxed, conversational hospitality as she leads the camera through both wild grassy mounds and bright, cavernous interiors. It feels like an organic blend of pragmatic architecture lesson, tactile craft exhibition, and personal retrospective honoring a life spent rethinking convention alongside an eccentric polymath partner. The atmosphere is buoyant yet deeply grounded, evoking the quiet warmth of a subterranean sanctuary hidden in plain sight beneath a rolling Ontario hillside.
## Bulletin - [00:14](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=14s) Paula and the late Bill Lishman constructed a 2,600-square-foot underground dome residence in Ontario, cutting off a glacial moraine ridge and covering ferro-cement domes with 12 to 14 inches of soil below the frost line. - [03:23](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=203s) By leveraging the earth's thermal inertia, the structure maintains a constant soil baseline of 58 to 59 degrees Fahrenheit, effortlessly moderating ambient outdoor temperature swings that exceed 100 degrees Fahrenheit across seasons. - [06:34](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=394s) To solve cold-air loss common in standard front-opening refrigerators, Bill engineered a cylindrical, foot-actuated pop-up fridge that lifts vertically out of the kitchen counter using compressed air while trapping heavy cold air in the shaft. - [03:23](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=203s) Interior walls are finished with crushed white marble dust troweled over ferro-cement to reflect natural sunlight streaming through circular overhead skylights, disproving the notion that earth-sheltered living must be dark.
## Key takeaways - [00:14](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=14s) The house is characterized as 'earth-integrated' rather than an underground bunker because natural skylights and landscape connections eliminate the dark, enclosed feel of a basement. - [00:14](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=14s) The property is located along a scenic glacial terminal moraine, chosen through topographical surveys for its sweeping, unobstructed views. - [00:14](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=14s) Curved ferro-cement domes mimic the natural compressive strength of an eggshell, easily bearing deep soil layers and foot traffic across the roof. - [03:23](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=203s) Building beneath the shallow frost line dampens Ontario's brutal 100-degree Fahrenheit seasonal climate swings, requiring only a modest temperature lift from radiant floor heating during extreme winter freezes. - [03:23](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=203s) The thin-shell structure was built using a steel armature, expanded metal diamond lath, and 2 to 4 inches of blown structural concrete sealed with an exterior rubber waterproofing membrane. - [03:23](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=203s) Coating interior concrete walls with natural powdered white marble dust amplifies sunlight entering through overhead circular skylights, providing bright ambient illumination throughout the day. - [06:34](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=394s) Standard store-bought furniture and appliances do not fit curved architecture, necessitating custom-built contour shelving and unique integrated appliances. - [06:34](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=394s) Bill Lishman redesigned domestic refrigeration with a pneumatic pop-up carousel that keeps cold air pooled at the bottom of the counter cavity rather than dumping it onto the floor. - [08:57](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=537s) The above-ground glass dining room acts as an entrance pavilion that can be thermally sealed off from the earth-sheltered domes during winter to conserve heating energy. - [08:57](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=537s) A modular outdoor dining dome was intentionally engineered to under 100 square feet to bypass municipal building permit requirements. - [12:41](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=761s) Paula Lishman established a global fashion enterprise as the 'beaver weaver,' pioneering a double-sided knit fur fabric from continuous yarn sliced from beaver pelts. - [14:04](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=844s) Interstitial voids between intersecting circular dome modules were preserved and transformed into indestructible concrete bathroom closets and linen nooks rather than backfilled with gravel. - [15:32](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=932s) Monolithic ferro-cement construction eliminates drafts, seams, and convective heat loss, keeping the underground rooms cool in 31 °C summer heat without conventional air conditioning. - [18:40](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=1120s) Bill Lishman's aviation work imprinting Canada geese onto ultralight aircraft led to 'Operation Migration' and inspired the 1996 Hollywood film Fly Away Home. - [20:34](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=1234s) Conventional rectilinear appliances, including laundry units and secondary freezers, are tucked away into a separate service chamber to maintain the aesthetic integrity of the curved living space.
## Detailed walkthrough ### [00:14](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=14s) Earth-Integrated Architecture on the Moraine
Walking across what appears to be an ordinary grassy hillside, Paula Lishman points out that passersby have no idea a home is hidden beneath their feet unless they know precisely where to look for an entrance. Rather than calling it an underground bunker, she insists on the term "earth-integrated," explaining: “We call this house earth integrated rather than underground as underground connotes dark and no lights and this one is integrated into the earth.” Unlike conventional builders who shove a standard square box into the side of a hill, their home was created by cutting off the top of the ridge, constructing an interconnected cluster of domes, and backfilling dirt across the roofline. Sunk twelve to fourteen inches below the surface, the structure rests safely underneath the local frost line.
Walking across the turf directly over the living quarters feels surreal, like stepping on the curved top of an enormous eggshell. The compressive strength of the dome shape is immense; Paula notes that an intact egg cannot easily be crushed in one's hand, allowing dozens of people to gather safely on the roof. As they walk, glass skylight turrets emerge from the sod like birdcages, offering direct vertical views down into the furnished rooms below. The property itself sits on a scenic terminal moraine—the dramatic ridge formed by the final push of prehistoric glaciers. After being expropriated from their previous location, Paula’s parents searched topographical maps along this high ridge to find land with unmatched sweeping views. Her father encouraged Bill and Paula to acquire the extraordinary property, pointing out its potential even though it seemed beyond their financial reach at the time. Tall wind ventilator cowls stand across the grass, catching ambient breezes to draw fresh outside air through the buried living spaces.
- **Moraine setting**: Situated along a glacial terminal moraine chosen specifically via topographical surveys for its unobstructed sightlines. - **Structural strength**: The curved domes mimic the engineering of an eggshell, effortlessly supporting deep soil and foot traffic above. - **Natural ventilation**: Exterior roof-mounted wind cowls catch passing gusts to cycle fresh air through the submerged rooms.
```mermaid flowchart TD accTitle: Earth-Integrated Dome Cross-Section accDescr: Diagram illustrating the layer structure and environmental regulation of the earth-integrated dome house. subgraph Exterior["Above Ground"] A["Wind Ventilators & Skylights"] B["Soil & Grass Layer (12–14 in / Past Frost Line)"] end subgraph Shell["Dome Structure"] C["Waterproof Rubber Membrane"] D["Ferro-Cement Shell (2–4 in Concrete & Expanded Metal)"] E["White Powdered Marble Troweled Finish"] end subgraph Interior["Living Space"] F["Naturally Lit Living Areas (Constant 58–59°F Soil Anchor)"] G["In-Floor Radiant Heating (Warmth Rises Smoothly)"] end
A --> B B --> C C --> D D --> E E --> F G --> F ```
---
[03:23](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=203s) Ferro-Cement Construction and Natural Illumination
The impetus to burrow underground came directly from the grueling Canadian cold. Prior to building the dome home, Paula and Bill lived in a small, poorly insulated prefabricated A-frame chalet situated just down the driveway. Paula recalls that during sub-zero winters, the only thing in the entire cabin that ever got warm was the electric hydrometer spinning furiously on the wall as heaters struggled to combat drafts. Desperate for a thermal refuge, Bill made a definitive decision: “Bill said we gotta get underground.” By moving below the shallow frost line, the structure takes full advantage of the earth’s steady thermal inertia, remaining at a stable 58 to 59 degrees Fahrenheit year-round. In the height of summer, the house feels wonderfully cool, while during brutal 40-below winter freezes, heating requires only raising the temperature a modest differential from roughly 60 degrees up to comfortable room temperature.
Inside, the interior feels lofty, calming, and remarkably airy rather than subterranean. Instead of the confining corners of a box, the high, cathedral-like vaults encourage an upright, expansive posture. To form the thin yet robust structural shell, Bill and his family assembled a steel armature, wrapped it in expanded metal diamond lath, and applied sprayed concrete to create thin, rigid ferro-cement walls measuring just two to four inches thick. To maximize illumination, the raw concrete interior was troweled with a slurry of crushed natural white marble dust mixed with adhesive, yielding a luminous, light-reflecting skin. Large circular skylights positioned overhead flood the rooms with clean, direct sunlight. Paula notes that skylights are far more luminous than vertical exterior windows because they face directly toward the open sky rather than relying on angled, reflected daylight. A flexible rubber membrane seals the exterior concrete domes beneath the soil, and radiant hydronic loops embedded in the floor keep walking surfaces cozy in winter without the noise, blowing dust, or drafty fans of forced-air systems.
- **Ferro-cement method**: Steel framing clad in expanded metal mesh and covered with two to four inches of blown structural concrete. - **Luminous finish**: A hand-troweled paste of natural powdered marble dust gives the curved interior surfaces an ambient, reflective glow. - **Hydronic radiant floors**: Heating coils cast directly into the masonry eliminate forced-air blowers and uneven thermal stratification.
---
[06:34](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=394s) Reimagining Furniture and the Pneumatic Pop-Up Fridge
Living inside spherical architecture requires throwing out conventional ideas about retail furniture and appliances. Because there are no vertical flat surfaces, standard store-bought bookcases and cabinetry simply cannot fit. Every shelf and storage ledge had to be custom built into the contour of the walls, beginning with broad, deep shelving along the floor and tapering to narrow ledges higher up where the wall curls inward. Rather than wedging an ordinary rectangular refrigerator into the graceful curves, Bill rethought refrigeration from basic physics. Since conventional refrigerators were conceived during the icebox era, they retain an inherent design flaw: cool air is dense and sinks, meaning that every time a conventional front-facing door swings open, the chilled air dumps out across the floor, forcing the motor to cycle endlessly to regain temperature.
Bill addressed this by embedding an insulated, top-opening vertical cylinder flush into the kitchen counter. To access food, the user depresses a pneumatic foot valve, prompting a quiet surge of compressed air to smoothly elevate the entire round carousel out of the counter surface. Paula demonstrates the mechanism: “This way you can lift up the contents and the cold air stays down there.” Because heavy cold air pools at the bottom of the sunken shaft, the chilled air does not escape while the food is raised. The narrow, tiered design also prevents condiments from getting stranded in deep dark corners, ending the frustrating ritual of kneeling down to peer into the back of an icebox. The cylindrical cavity is lined with external cooling coils that rarely accumulate frost, supported by an air compressor that periodically recharges its tank once a day. Beside the pop-up fridge, Bill integrated clean work openings into the counter, including dedicated recessed chutes for direct food-prep composting and waste disposal.
- **Pneumatic carousel**: A foot-actuated compressed-air piston lifts the circular shelves straight out of the countertop, keeping the pool of cold air trapped inside the shaft. - **Ergonomic access**: Tiered vertical shelving provides 360-degree visibility, eliminating forgotten items hidden at the back of standard shelves. - **Integrated food prep**: Flush countertop ports allow vegetable peelings to drop directly down into an internal compost collector.
---
[08:57](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=537s) Modular Domes, Community Concepts, and Seasonal Zoning
Adjacent to the kitchen, a multi-purpose dome once used as a guest room is being occupied by Paula and Bill's son, Jordy. On the wall hangs an architectural concept poster Bill designed for sustainable sub-Arctic living: an integrated circular collective featuring 36 individual private housing units surrounding a sheltered one-acre communal indoor biosphere. Bill also applied modular geometric efficiency to their own outdoor dining dome, purposefully sizing it under the local 100-square-foot regulatory threshold so it could be erected without cumbersome municipal building permits. The screened-in dining circular enclosure is a summer favorite where a round dining table allows everyone to face one another, converse, and pass food effortlessly.
The main interior living room incorporates an organic, semi-circular modular sofa positioned near a specialized metal hearth that radiates warmth through the dome during winter. The central fireplace was thoughtfully designed to unclick and lift out entirely in the summer, freeing up the polished floor for large family dances and gatherings. Connected to the main living area is an expansive dining pavilion that functions as the home’s primary entrance foyer. Because this large dome features full-height exterior glass looking out across the landscape, the family manages seasonal energy consumption by physically zoning the home: “Christmas when people are coming we'll get the fire going in here and but if we don't have to heat it then it just saves a bunch of energy because that's plenty of living space on the other side.” By sealing an insulated door between this sun-exposed pavilion and the buried domes, they cut off heat loss during deep freezes. Paula observes that despite being earth-integrated, the home never feels cut off from nature; skylights and sightlines through connecting doors ensure that every room except the bathroom enjoys an open vista of the outdoors.
- **Permit-exempt dining dome**: Engineered to just under 100 square feet to bypass municipal permit requirements while offering a screened bug-free summer room. - **Removable living room fireplace**: Disconnects and stores away in warmer months to open up the central dome into an open dance floor. - **Seasonal thermal zoning**: The above-ground glass dining room can be isolated from the buried living quarters with heavy closing doors to conserve heat all winter long.
[12:41](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=761s) Knitted Fur and the "Beaver Weaver"
Paula Lishman explains the origin of her pioneering textile technique, which turns fur into a double-sided knit fabric. Growing up in Goose Bay, Labrador, she was accustomed to extreme cold where people routinely wore animal hides with the fur facing inward against their skin for genuine warmth. When she later encountered someone sporting a traditional luxury fur coat, she was baffled: “So when I saw a lady with a fur coat with a fur on the outside, I said to my brother, ‘At least get a coat on inside out.’” That realization inspired her to begin slicing pelts into continuous yarn and knitting with fur and leather, creating garments that are fuzzy and soft on both the inside and outside.
She focuses primarily on Canadian beaver pelts, affectionately dubbing herself the “beaver weaver.” For Paula, beaver represents an abundant, natural, and renewable Canadian resource that also yields the softest possible yarn. During the height of her commercial enterprise, her studio exported garments worldwide, culminating in major national acclaim. She points out a versatile crocheted "hands-free shawl" that can be worn while washing dishes or driving, wrapped into a voluminous coat collar, draped as a slender scarf, or pulled up over the head as a hood.
- Paula won the Canadian Woman Entrepreneur of the Year Award in 1995 for International Competitiveness for bringing substantial export revenue into the country. - In winter, outside temperatures in the area plummet to −20 °C or −25 °C (−4 °F to −13 °F), while the interior remains comfortable thanks to in-floor radiant heating.
[14:04](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=844s) Sculpting the Ferro-Cement Bathroom and Built-in Storage
As Paula walks through the master bathroom, she recounts Bill’s eccentric drafting methods. He designed the home by simply drawing circles on a sheet of paper without fully anticipating the physical dimensions of the finished rooms. Originally, Bill had planned to pack all the leftover voids between the intersecting circular domes with loose gravel to stabilize the earth backfill. Paula promptly vetoed the idea to solve a practical domestic need, asking him: “I mean, are you kidding, where am I gonna put all my towels?” Those odd interstitial alcoves were instead preserved and hollowed out, creating uniquely contoured nooks that serve as linen closets and general storage throughout the house.
The construction of the bathroom fixtures is entirely organic and integrated into the shell. The bathtub, shower stall, and vanity cupboards were framed out of heavy wire and steel rebar, sheeted with expanded metal lath, hand-troweled in structural concrete, and finished with crushed white marble plaster. The surfaces are practically indestructible; Paula jokes that unlike standard Gyproc drywall, punching these walls would instantly break your hand. Maintenance is minimal: because dust is naturally drawn toward hot incandescent light fixtures, they only need to wash around the light recesses once a year using a sponge and TSP (trisodium phosphate).
```mermaid flowchart TD accTitle: Dome Interstice Repurposing Flow accDescr: Flowchart illustrating how negative spaces between circular domes were converted from gravel backfill into integrated domestic storage. subgraph Framing ["1. Shell Geometry"] A["Circular Dome Layout"] --> B["Intersecting Voids"] end subgraph PlanChange ["2. Design Modification"] B -->|"Bill's plan"| C["Backfill with Gravel"] B -->|"Paula's intervention"| D["Preserve Negative Spaces"] end subgraph FitOut ["3. Ferro-Cement Finish"] D --> E["Wire Armature & Expanded Metal"] E --> F["Troweled Concrete & Marble Plaster"] F --> G["Indestructible Cabinets & Towel Storage"] end ```
[15:32](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=932s) Bedrooms, Natural Lighting, and Cave-Like Comfort
Moving into the adjacent sleeping quarters, Paula points out stacked mattresses that can be rearranged depending on how many overnight guests arrive, alongside built-in wardrobes sculpted directly into the walls. The family’s living arrangements shifted over time: their two older sons helped construct the underground dwelling while living in the property's original wooden chalet. By the time the underground domes were ready for occupancy, the boys were already teenagers, so their parents left them to enjoy their independence in the chalet while their younger daughter, Carmen—born eleven years after the eldest—grew up underground in this dome room with an adjustable suspended swing.
Even when outdoor summer temperatures spike to 31 °C (88 °F), the subterranean structure remains naturally chilled without air conditioning because it sits well beneath the top foot of soil. In the winter, the radiant heating system only needs to raise the indoor ambient temperature by 16 to 18 degrees Celsius, and because the ferro-cement shell is completely monolithic, there are zero drafts or leaky seams to steal warmth. Paula reflects on how the circular skylights wash the curved white plaster with pure overhead sunlight: “It’s caves, but it’s bright caves—you think of as dark, but it shelters you in such a way, there he’s for you, it’s like going back to the womb.” The circular light beams track across the floors and walls as the sun moves, occasionally hitting the television screen directly at certain hours of the afternoon.
- A draft-free building envelope prevents the massive convective heat loss typical of traditional houses with leaky windows and vents. - White marble dust walls and light carpets maximize illumination, allowing the interior to stay bright throughout the day without turning on electric lamps. - Paula's dog Cassie occasionally interrupts the tour, bounding into the bedrooms seeking attention.
[18:40](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=1120s) Father Goose, Ultralights, and Bill's Inventions
The conversation turns to the late Bill Lishman’s remarkable second life as an aviator and conservationist. After taking up ultralight flying, Bill realized he missed company in the sky and began imprinting Canada geese to fly alongside his open-air wing. That experiment led to teaching the birds custom migration routes across the Great Lakes, a triumph dramatized in the 1996 Columbia Pictures feature *Fly Away Home*. Wildlife biologists soon contacted him to ask if the same technique could rescue the critically endangered Whooping Crane by establishing a migratory flock along the eastern flyway of North America.
Paula affectionately describes her husband as a polymath: “He was a Leonardo—I mean, the man could build anything, fly anything, drive anything, build anything.” When Apollo astronauts walked on the Moon, an inspired Bill secured a bank loan to construct a full-scale replica of the Apollo Lunar Module on their property, intending to turn it into an eccentric guest suite. Paula's thriving fur business provided the financial stability to indulge such creative engineering whims, forming what she saw as a harmonious creative partnership: while she sculpted soft, tactile beaver textiles, Bill spent his days outside pounding steel over an anvil.
- Bill fabricated monumental public art, including an 86-foot centerpiece tower for the Land Transportation Plaza at Expo 86 in Vancouver. - He also crafted an expressive metal self-portrait bust that was featured in an IMAX film, designed to look up in mock horror. - His pioneering bird-led flights earned him the moniker "Father Goose" throughout the global aviation and conservation communities.
[20:34](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=1234s) The Landscape, Earth Integration, and Living Out of the Box
Stepping outside onto the hillside, the underground house completely vanishes into the rolling landscape. The exterior of the mounds is overgrown with wild vetch, broad grasses, and sprawling wild grapevine from which Paula harvests fruit every autumn to make homemade jelly. The only visible clues that a 2,600-square-foot house exists beneath the sod are the circular acrylic skylight bubbles and a small chimney ventilator poking out of the meadow. Next to the earth-covered roof stands the old rustic chalet where the family originally lived, flanked by a home heating oil tank decorated with a mural by Cadence that commemorates Bill flying alongside geese opposite Paula's craft as the "Beaver Weaver."
```mermaid flowchart LR accTitle: Earth-Sheltered Temperature Stabilization accDescr: Diagram showing how burying the house beneath the frost line dampens 100-degree ambient seasonal swings into a steady baseline temperature. subgraph ExteriorSwings ["Surface Environment"] A["Summer High: 31°C / ~90°F"] B["Winter Low: -25°C / -13°F"] end subgraph GroundMass ["Earth Berm (Below Frost Line)"] C["Constant Baseline Soil Temperature"] end subgraph InteriorExperience ["Earth-Integrated Domes"] D["Summer: Naturally Chilled (No A/C)"] E["Winter: Modest Radiant Lift (Zero Drafts)"] end A --> C B --> C C --> D C --> E ```
Paula leads the way into her garden workshop, located just a few paces from the buried home. A dedicated service doorway allows her to slip straight from the vegetable patches into the mudroom and bathroom without tracking dirt inside. To preserve the pure curvilinear aesthetic of the primary living domes, all conventional rectangular equipment—the washer, clothes dryer, utility panels, and a backup refrigerator-freezer—is concealed inside a discrete utility chamber. Paula emphasizes that the structure is not a dreary basement but an "earth-integrated" sanctuary that effortlessly tames the wild 100-degree Fahrenheit seasonal climate swings of Ontario: “It’s just the feeling of this different shape, getting out of the box, and really, you know, the advantages in this country where the temperature can vary, you know, easily 100 degrees Fahrenheit from the hottest day to the coldest day, and but once you’re below the frost line there's constant temperature and it's very easy to deal with.”
## Notable quotes > [00:14](https://www.youtube.com/watch?v=RoGuvvzHY1A&t=14s) We call this house earth integrated rather than underground as underground connotes dark and no lights and this one is integrated into the earth. — Paula Lishman
## Mentioned Paula Lishman, Bill Lishman, Jordy Lishman, Carmen Lishman, Cassie, Cadence, Fly Away Home, Operation Migration, Expo 86, Columbia Pictures, Apollo Lunar Module
## Video description Paula and Bill Lishman spent many winters in a poorly-insulated A-frame cabin before realizing they needed to go underground to use the earth’s energy to stay warm, so they knocked the top off a hill, dropped in ferro-cement domes, and covered it up again with dirt.
Thanks to skylights cut into every dome and the white-powdered marble that covers the interior, their earth-sheltered home is naturally well-lit despite being below the frost line.
Fifteen feet below ground, the soil temperature remains about equal to the annual average temperature of the area’s surface air so earth-sheltered homes use sod’s constant temperature to stay warmer in winter and cooler in summer.
Bill Lishman believed in rethinking not just the conventional home, but also how we live. He reimagined his home’s refrigerator by building a round appliance that pops up out of the countertop so the heavier cool air stays inside when opened (via compressed air).
In 1986, Bill Lishman began training Canada Geese to follow his ultralight aircraft and to "teach" the birds migration routes to avoid a threatened extinction. His work on "Operation Migration" brought him popular recognition with the 1996 movie Fly Away Home starring Jeff Daniels.
Paula Lishman also believes in rethinking convention. In 1979 she began her fashion label reinventing the fur trade by using spun fur to knit her clothing.
http://www.paulalishman.com
On *faircompanies https://faircompanies.com/videos/underground_dome_home_family_led_geese_fly_home/
[Source](https://www.youtube.com/watch?v=RoGuvvzHY1A)