Founding · $37
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Roman concrete, $3 waterproofing, and foundations — four complete builds, taken all the way to real dimensions, modern materials, and step-by-step you can actually attempt.
Built on primary sources — MIT (Science Advances, 2023), the US National Park Service, and the building code — not folklore.
“You do not show exactly from A to Z how to build your own that anybody can do… it's just an interesting tale.” — a viewer, in the comments. It's the note we get most. So we built the guide that answers it.
The technique is fascinating, the history is real — and then it ends, exactly where the actual building would start. You are handed a story and left to reverse-engineer a blueprint.
"Mix lime and ash" — but never the ratios, the water dose, or the cure. You're left guessing at the one thing that decides if it works.
Where do you buy volcanic ash in 2026? What's the substitute, and what's it called at the yard? The tutorials never say.
Quicklime burns. Trenches collapse. Footings need engineers. The fun videos skip all of it — and that's where people actually get hurt.
Roman concrete heals its own cracks. A stone trench defeats frost without a drop of poured footing. Lime lets a wall breathe so it never spalls. This book takes four of them all the way to buildable — the principle, the quantities, the sourcing, the safety, and how each meets code.
Four complete chapters — Roman concrete & foundations. Each one, A-to-Z.
The hot-mix technique MIT decoded in 2023 — and how to make it.
Opus signinum: lime + crushed pottery that sets underwater.
The rubble trench that beats frost heave — 40-60% cheaper.
Where to bear the load, and the mortar that flexes instead of cracking.
Own diagrams, real quantities, honest limits — not a wall of text. This is what "buildable" looks like.
Every chapter takes one technique through all six layers. This is the part the free videos never reach.
The real problem it solves — usually water or heat — so you can adapt it, not just copy it.
Ratios, doses, dimensions — as honest ranges to test, never a fake "magic number."
The 2026 substitute for each ancient ingredient — and exactly what to ask for at the yard.
The kit and the build order, start to finish — what to do, in the sequence you do it.
The real hazards the videos skip — caustic lime, silica dust, trench collapse — and how to not get hurt.
How the method maps to the building code, and how owner-builders actually get it approved.
These methods worked for two thousand years without the internet. So does this book.
A file you own. Not a stream, not a login, not a platform.
Made to be printed, shelved, and taken to the job site.
When the video tutorial can't load, the book still opens.
One purchase. Volume II updates included — free, forever.
Real comments from the channel — the demand this book was built from.
"Please recommend an ebook with all the subjects you have posted. So many I'd love to try and share with my grandchildren."
a viewer, on YouTube"I plan on building my house this way. I had to do the research myself."
a viewer, on YouTube"This is not history, this is a blueprint. Us moderns could really learn a lot."
a viewer, on YouTubeA book that pretends every old method works everywhere would get someone hurt. This one won't.
Volume I is complete and yours the moment you buy. Volume II — walls, shelter, heat, fuel — ships to you free as it's written, and founding readers get a say in what's finished first.
Roman Concrete & Foundations. Four complete builds, A-to-Z.
Founding price · goes to $47 at launch
Comparable build books sell for $50+ — and still skip the how. Secure checkout & instant delivery by Gumroad.
At checkout you can add the optional print-on-site Worksheets pack — checklists, batch logs & spec cards for every build.
No-questions refund — I'd rather have your trust than your $37. And founding readers keep every Volume II chapter free, whatever happens to the price.
Not a stranger with a course — the channel you already watch.
The YouTube channel about techniques that outlast — millions of views on Roman concrete, ancient foundations, and the engineering behind buildings that refuse to fall down. This book exists because the comment section kept asking for one thing the videos couldn't carry: the full build. Researched against primary sources, written to be used, and honest where honesty costs us a sale.
Founding pricing won't last, and Volume II only gets more valuable. Start with the four builds that everything else stands on.
Get my copy — $37Instant download · Yours forever · No-questions refund · Volume II free as it ships