This week we’re talking about building for longevity — what actually makes a house last 20 years versus 500. We compare modern American stick framing, European masonry, traditional stone, and natural building methods like cob, rammed earth, and straw bale, and why water, airtightness, climate, and skill matter more than the material itself.

In this episode:

• Why old buildings are still standing and modern ones often aren’t
• How American stick framing works, and how it has changed
• Tight houses, moisture, mold, and the “Ziploc bag” problem
• HRVs, wood stoves, negative pressure, and indoor air quality
• Rain screens vs older tar-paper-and-siding assemblies
• Repairability vs 25-year wall warranties
• Speed, year-round building, and the trades skills gap
• Why buildings fail as systems, not as single products
• Modern European masonry and brick-as-rainscreen construction
• Dry-in time, cost, and US vs UK labor
• Brick veneer problems, window upgrades, and out-of-plumb stone walls
• Maintenance: masonry vs wood siding
• Long-lasting roofs: slate, clay tile, and standing seam
• Traditional stone, field stone, and lost mason knowledge
• Laying stone on its natural bed, and orienting wood the way it grew
• Natural building / “hippie building”: cob, rammed earth, straw bale, earthships, earthbags, and papercrete
• Thermal mass, overhangs, drainage, and climate-specific design
• Permitting, insurance, and hybrid builds
• Question of the week: the tool you most regret buying
• Tip of the week: spend money on tools that need to be precise

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Welcome to the Greenhill Forge Podcast, with Eric from the Greenhill Forge YouTube channel, and my buddy Amal, a fellow builder of many trades.

In this podcast we’ll talk about where the real world meets experiments in alternative energy, wood heating, metal fabrication, off-grid engineering and self sufficiency, so expect discussions about workshops, tools, fabrication, building, homesteading, and what it actually takes to make those dreams real.

We’ll answer a question each week, so send yours to us at https://forms.gle/zNzKTtjDnBEupLBQA

WATCH the podcast on Youtube at https://www.youtube.com/@GreenhillPod

LISTEN on all your favorite podcast platforms.

See you next week!

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CHAPTERS

00:00:00 Intro: Building for longevity

00:02:22 Modern American stick framing

00:05:16 Tight houses, moisture, and the “Ziploc bag” problem

00:11:04 Wood stoves, negative pressure, and indoor air

00:14:38 Rain screens: how wall assemblies actually last

00:19:16 25-year warranties vs easy repairs

00:22:19 Speed, seasons, and the skills gap

00:24:06 Buildings are systems, not products

00:25:33 Modern European masonry

00:27:01 Dry-in time, cost, and labor

00:31:26 Brick veneer, repairs, and out-of-plumb walls

00:37:01 Low maintenance vs hard to get right

00:42:11 Roofs that last: slate, clay, and standing seam

00:49:19 Traditional stone, field stone, and lost knowledge

00:52:32 Natural bed, grain, and why orientation matters

00:55:34 Hippie building

00:56:56 Cob: Devon tradition vs modern cob

01:00:42 Climate, skill, and how natural building fails

01:05:03 Good feet, good hats, and keeping water off

01:06:16 Thermal mass: desert gift, cold-climate problem

01:08:49 Rammed earth

01:14:22 Straw bale, earthships, earthbags, and papercrete

01:18:16 You will never build a perfectly watertight house

01:19:42 Permits, insurance, and hybrid builds

01:23:10 Question of the week: the tool you most regret buying

01:28:47 Tip of the week