Notes from Site

LeDeuxions · twenty years of building things, and the parts that keep going wrong · 한국어로 보기

Most of what fails in a building was decided somewhere nobody can see any more. These are the ones I have had to open back up and explain — to owners, to builders, and a few times to myself.

I Stopped Asking the LLM First

A tiny AI that answers from a table, and calls a model only when it can't decide. You don't recalculate the structure every time someone opens a door.

Your Living Room Is Sized for a TV Nobody Watches Together

The formula was viewing distance for one shared screen. That household does not exist any more.

한국어

What a Seismic Rating Actually Promises You

Not that the building stands. That it falls slowly enough for you to walk out.

한국어

Why West-Facing Rooms Stay Hot After Dark

The wall absorbed it all afternoon and gives it back all night. Curtains stop the light, not the heat.

한국어

A Radiant Barrier With No Air Gap Is Just Foil

The spec sheet says leave 5mm. On site it gets installed at zero, and nobody can check it afterwards.

한국어

Waterproof Concrete Admixture Doesn't Waterproof Concrete

The admixture was there when the concrete was mixed. The crack showed up years later. Not the same place.

한국어

Water Is Coming Up Through Your Basement Floor. Here's Why.

It is not a leak from above. Groundwater pushes up under the slab, and the fix is not a coat of sealant.

한국어

점검 보고서에 캐드 도면 넣을 때 글자가 뭉개지는 이유 (한국어)

캡처는 픽셀이고 도면은 좌표입니다. 좌표를 픽셀로 바꿔서 붙이고 있는 것이 문제입니다.


Written from jobs I worked on, not from a manual.
Small tools I built for everyday work — pdf300.com
And a few things to play with — ledeuxions.com/games