- 1 hour ago
Those curious features on old American barns weren’t just decoration—they were practical solutions to everyday problems, from damp hay and muddy doorways to rodents and fire. Elias Yoder, a Lancaster County farmer, explains how the bank barn’s hillside layout, forebay overhang, ridge cupola, gable vents, and opposing doors all served a purpose.
Explore traditional barn design, Pennsylvania farming history, hayloft ventilation, Dutch doors, hay forks, corn cribs, and the simple engineering behind historic farm buildings. This narrated history and home-building guide is for anyone interested in old barns, rural architecture, agricultural heritage, or practical ways people once managed airflow, moisture, and pests without modern equipment.
Explore traditional barn design, Pennsylvania farming history, hayloft ventilation, Dutch doors, hay forks, corn cribs, and the simple engineering behind historic farm buildings. This narrated history and home-building guide is for anyone interested in old barns, rural architecture, agricultural heritage, or practical ways people once managed airflow, moisture, and pests without modern equipment.
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00:00Drive past an old barn and you will see a dozen things on it that look like decoration.
00:05The little tower on the ridge, the slats in the gable, the roof that sticks out over nothing,
00:11the painted circles.
00:13Not one of them is decoration.
00:16Every single one is solving a problem, and most of those problems would kill you or ruin
00:22you if they were not solved.
00:24People look at these buildings and say, they do not build them like this anymore because
00:30nobody takes the trouble.
00:31That is not the reason.
00:34They do not build them like this anymore because we solved the same problems with electricity
00:40and we forgot the problems ever existed.
00:44I am Elias Yoder.
00:46I farm in Lancaster County, Pennsylvania, and the barn I work in every day was raised before
00:52the Civil War.
00:53And before you tell me you do not own a barn, stay with me because you own a piece of
00:59one.
01:00You have a shed, or a garage, or an attic, or a crawl space.
01:06Every one of those is an unheated building full of stored things, and every problem on this
01:13list is a problem your shed has too.
01:17Damp that cannot get out, wood sitting where water collects, rodents going up something,
01:24warm air with nowhere to go.
01:26The old people solved all of it without a fan or a dehumidifier anywhere, and the solutions
01:34are sitting out there in plain sight on buildings you drive past every week without looking at
01:40them properly.
01:42Fifteen of them, and I will tell you what each one is actually for.
01:47I gathered the whole of it into a book at EliasYoder.com.
01:51The book is the long version.
01:54If you want it, it is there.
01:56I will not mention it again.
01:59My grandfather taught me what a barn is for in a way I have never forgotten, and it took
02:04him two weeks.
02:06I was fourteen, and we got hay in ahead of a storm that was coming, and some of it went
02:12up into the mow greener than it should have.
02:14Everybody knew it.
02:16Nobody had a better choice.
02:18That night he took me up the ladder into the mow, and had me push my bare arm down into
02:24the hay, right up past the elbow, and asked me what I felt.
02:28It was cool.
02:30Then he had me do it again every night for two weeks.
02:34Same spot, same depth, arm in up to the elbow.
02:39If it ever comes up warm, he said, you come and get me, and you do not wait until morning.
02:45Because hay that goes in damp does not just spoil.
02:50It heats.
02:51The damp feeds something living in there, and that gives off heat, and the hay is packed
02:57too tight to let the heat out, and if it goes far enough, it will take fire on its own
03:03in
03:03the middle of the stack with nobody near it.
03:06That is the thing an old barn is built around.
03:09Not the animals.
03:10Not the wagons.
03:12The hay.
03:12The hay.
03:13And the fact that the hay is trying to burn your barn down.
03:17And when he had got that into me, he walked me out into the yard and pointed up at the
03:22cupola, and he said the thing I have come back to a thousand times since.
03:27Nothing on an old barn is there to be looked at.
03:311.
03:32It is built into a hill.
03:33A Pennsylvania barn sits in a bank, so there are two ground floors and no stairs in the
03:40whole arrangement.
03:41A loaded wagon drives in at the top.
03:44The animals live underneath.
03:46And everything heavy you need to move, the hay and the grain and the bedding, moves downward,
03:53which it will do by itself if you let it.
03:552.
03:57The forebay.
03:58That is the upper floor hanging out past the wall below it on the downhill side, which
04:03looks like a mistake until you stand under it in the rain.
04:07It shelters the stable doors and the strip of ground where the animals come out, keeps
04:12the weather off the lower wall, and gives the stock a dry place to stand.
04:17On a proper one, it is five or six feet of overhang, and it is the mark of this region.
04:23The form came over with Swiss and German families, and it stuck here because it suits this weather,
04:29and that is worth saying plainly.
04:31A barn is not a style somebody chose.
04:35It is an answer that traveled with people and then got adjusted by the first few winters.
04:41And there is a second thing the forebay does that nobody mentions.
04:44The stocks stand under it in rain and in summer sun, which means the ground immediately outside
04:50the stable door stays dry and firm instead of turning to the mud hole it would otherwise be.
04:56A dry doorway is not a small thing when you are moving animals through it twice a day for a
05:02hundred years.
05:043.
05:05The cupola.
05:06The little tower on the ridge with the slats in it.
05:09That is the chimney for the whole building.
05:12Warm, damp air coming off the hay rises and goes out of there, which pulls fresh air in at the
05:18eaves below,
05:19and that air moving through the mow is the thing standing between you and the fire I just described.
05:26It is not a weather vane stand.
05:28It is a vent, and if yours is shut or screened over with no gap, it is doing nothing.
05:35And the reason it sits at the very top is that it has to.
05:39Warm air will only leave a building at the highest point there is.
05:44Put your opening halfway up the roof, and the air above it sits there and stays wet.
05:50So the cupola goes on the ridge, and the inlets go down at the eaves,
05:54and the height between the two is what makes the whole thing pull.
05:58That same arrangement is what a roof ridge vent is doing on your house right now,
06:04and it was worked out on barns long before anybody sold it in a box.
06:104.
06:11The slats in the gable end.
06:14Same job, lower down.
06:16Louvers angled to shed rain while letting air through.
06:20A barn is trying to breathe from the bottom to the top at all times,
06:25and every one of these openings is part of that.
06:295.
06:31The two big doors facing each other.
06:34Look at an old barn, and the main doors are directly opposite one another across the floor.
06:40That is not symmetry.
06:42Open both, and you have made a wind tunnel of the center bay,
06:46and that is the threshing floor, where grain was beaten out and then tossed in the air
06:52so the draft carried the chaff away and let the grain fall.
06:57The building is a machine for separating two things using only the wind.
07:02And the floor itself is the giveaway.
07:05It is the widest, heaviest, tightest boards in the whole building,
07:10laid close so not a grain of wheat goes through a crack,
07:14and worn smooth in the middle by a century and a half of work.
07:18If you are ever in an old barn, look down.
07:22The floor will tell you what that bay was for before anybody tells you.
07:276.
07:29The hay hood.
07:30The little roof jutting out from the peak of the gable over the big door.
07:35Under it runs the track and the pulley for the hay fork.
07:39That hood exists to keep rain off the rope and the ironwork,
07:43because a wet rope rots and a rusted trolley seizes,
07:48and both of those stop your harvest dead.
07:517.
07:52The track in the ridge.
07:54Run your eye along the underside of the peak inside,
07:58and there is a steel rail with a trolley on it.
08:01A fork on that rail lifts a quarter of a wagon load at once
08:05and runs it the length of the barn before dropping it.
08:09Two men and a horse did what twenty men with pitchforks would have done.
08:14That is the most machinery an old barn has in it,
08:18and it has no engine anywhere.
08:21The way it works is worth knowing.
08:23The fork goes down into the load on the wagon and is set.
08:28A horse at the far end of the barn walks away from the building,
08:32and the rope over the pulley lifts the whole bite of hay straight up to the peak.
08:37It hits the carrier, locks into the trolley, and then runs along the rail to wherever you want it.
08:44A boy pulls a trip rope, and the fork opens and the hay drops.
08:49One horse, one boy on the trip rope, one man on the wagon.
08:54The horse never enters the barn, and the men never climb.
08:59That is the whole design, and it is the reason a barn needs that enormous clear space in the peak,
09:06with nothing in the way of it.
09:098. Doors Cut in Half
09:11A Dutch door, the top opening on its own.
09:16Open the top, and the stall gets light and air while the animal stays where it is.
09:21In winter, you shut the bottom and leave the top open an hour a day,
09:26because stale wet air in a closed stable is harder on a horse than cold air is.
09:339. The Whitewash
09:36Lime and water, and it is doing three jobs at once for almost nothing.
09:41It is mildly caustic, so it discourages what grows on damp wood.
09:46It keeps insects off, and it turns a dark building light,
09:52which matters more than people think when you are working at five in the morning with a lantern.
09:57It also has to be redone every few years, which is exactly why it mostly is not anymore.
10:04A thing that needs doing again loses to a thing that is sold as permanent every time,
10:12whether or not the permanent one is better.
10:15And it is worth knowing that the recipe was free.
10:19Lime, water, and often salt or a little tallow to make it stick.
10:25That is why every barn and every milk house and every cellar wall in this county was white.
10:32Not taste, price.
10:3610. Stone below, timber above
10:41The bottom of a barn is stone, because that is where the wet and the manure and the ground are,
10:47and stone does not care.
10:50Above that it is timber, because timber is lighter and a man can work it.
10:56And the line where those two meet is the single most important piece of wood
11:01in the whole building, and it is the one nobody ever looks at.
11:06It is called the sill.
11:09It is the timber lying flat on top of the stone, and every post, every stud, and every pound of
11:17that barn is standing on it.
11:20The builders knew exactly what they had there, which is why the stone was brought up a good height off
11:26the ground first,
11:27and why the sill was the biggest and best piece of oak on the place, and why there is a
11:33drip course,
11:34or a projecting stone under it, throwing water clear of that line.
11:40Rot in a sill is slow, hidden, and expensive beyond anything else that happens to a building.
11:48I have a video coming on that one, and I will leave it there.
11:5311. The Corn Crib Leans Outward
11:57A crib for ear corn is narrow, so air can pass right through it, and the walls are slatted for
12:05the same reason.
12:06But look at the shape. The walls lean out as they go up, wider at the top than the bottom.
12:14That is, so rain running down the outside of the slats is thrown clear instead of running inward onto the
12:22corn.
12:23And the width is a rule, not a preference. A crib is narrow, four or five feet through, and rarely
12:31more,
12:32because air has to reach the middle of it. Build one twice that wide, and the corn in the center
12:39never dries,
12:41and you lose the middle of your crop to mold while the outside looks perfect.
12:46Every dimension on that building is set by how far air will travel through ear corn, which is not very
12:55far.
12:5612. The Stones Under the Granary
13:01Mushroom-shaped stones holding a grain building up off the ground, wide cap on a narrow stem.
13:09A rat can climb the stem. A rat cannot get round the overhanging cap.
13:16That is the entire device, and it works perfectly, and it needs nothing.
13:21No bait, no trap, no checking, no replacing, no poison anywhere near your grain or your animals.
13:31You will see the same idea done in sheet metal on newer buildings. A cone collar round a post.
13:39It is the same geometry, and it works for the same reason, and the stone ones have been doing it
13:46since before anybody had sheet metal to bend.
13:5013. Lightning Rods
13:53On the Barn Before the House
13:55People find that strange, and it is not strange at all.
14:00The house has people in it who can get out.
14:04The barn has the whole year's feed in it and a hundred tons of dry hay,
14:10and if it goes, you have lost the winter and most likely the stock too.
14:16So the barn got the rods first because the barn was the thing that could not be replaced.
14:22And a barn is a good target besides.
14:26It is the tallest thing for a distance, it stands alone in the open, and it is full of dry
14:32material.
14:33If you have an outbuilding that fits that description and no rods on it, that is worth a conversation with
14:41somebody who fits them, because the sum involved is small against what is inside.
14:4814. The holes left for the birds
14:52Those small openings high in the gable are not damage. Somebody cut them.
15:00Barn swallows and barn owls were invited in and kept, because a pair of swallows takes insects out of the
15:09air all day over your stock, and an owl works the grain floor all night.
15:15No poison, no traps, no cost, and nothing to buy.
15:21A pair of swallows raising young will take an enormous quantity of flying insects out of the air over a
15:28barnyard in a season.
15:29And flies on stock are not a nuisance, they are a drag on the animal's condition.
15:35And a barn owl hunting a grain floor every night does a job no trap line will match.
15:41That is why the openings are there, and why nobody ever boarded them up.
15:47The birds were not tolerated. They were staff.
15:5315. And the painted stars
15:56This is the one everybody asks about, and I am going to give you the dull answer, because it is
16:02the true one.
16:04Those are decoration. They are called barn stars, and in this part of the country, people have painted them for
16:11generations, because they are handsome, and because their father did.
16:16The business about them being magic charms to keep witches off, that was mostly made up in the last hundred
16:23years, and a good deal of it was made up for visitors who wanted the story to be better than
16:28paint.
16:29And I want to be careful here, because a thing being decoration is not a thing being worthless.
16:36People painted them because a plain red wall is a plain red wall, and a man is allowed to like
16:43the look of his own barn.
16:44That is a real reason. It is simply not a secret one. I tell you that for a reason. It
16:52is the one thing on the whole building that really is just for looking at, and people are certain it
16:58must have a hidden purpose.
17:01Meanwhile, they drive straight past the cupola, which is the only thing up there actually keeping the barn from burning
17:07down, and they take that one for an ornament.
17:11We have it exactly backwards, and we have it backwards because somebody told us a better story about the paint
17:18than anybody ever told us about the vent.
17:21Which is the thing I would have you take away from all of this. An old barn looks like craftsmanship
17:27and sentiment, and it is neither.
17:30It is a building made by people who could not call anybody, could not buy their way out of a
17:36problem, and had exactly one chance a year to get the hay in.
17:40Every curious thing on it is a constraint that somebody solved with a saw. And that is why they all
17:47look alike without anybody enforcing it.
17:50Nobody wrote a style guide for these buildings. Men solving the same weather with the same materials and the same
17:58shortage of money arrive at the same answers,
18:01and what we now call a regional style is really just the shape a problem leaves behind when enough people
18:08solve it properly.
18:10If you ever get the chance to stand inside one and look up at the joints, there is one more
18:16thing to see, and almost nobody is told to look for it.
18:19Cut into the timbers where they meet, you will find Roman numerals. One, two, three, and then the strange ones
18:29that are four strokes and a crossbar rather than letters,
18:32because a man with a chisel does not want to be cutting curves. Those marks are there because the whole
18:39frame was laid out and cut on the ground over the winter,
18:42every joint fitted to its own partner, and no two quite alike, and then it was all taken apart again
18:49and stacked.
18:51And then on one day the neighbors came, and it went up, and those numbers were how forty men who
18:57had not cut the joints knew which beam went where.
19:01So the building is a kit, cut by one or two men over months, assembled by the whole township in
19:08a day.
19:09That is what a barn raising actually was. Not a social occasion with a building happening at it.
19:16A piece of engineering that depended on a community turning up, which is a thing I have said about winter
19:22on this channel,
19:23and it turns out it was true of the walls as well. And nobody tells you this, and there is
19:29no scheme in it either.
19:31It is only that the romance sells, and the engineering does not.
19:36A man can sell you a print of a hex sign, and a bus tour, and a coffee table book
19:41about vanishing craftsmanship.
19:44Nobody can sell you the fact that the little tower on the roof is a chimney, because once you know
19:49it you are done.
19:50There is nothing to buy. And the knowing took forty seconds.
19:54Nothing on an old barn is there to be looked at.
19:58So tell me something in the comments. Is there an old barn near you, and what is the one thing
20:04on it you have never been able to work out?
20:08Describe it, and I will tell you what it is for, because there is almost always an answer, and it
20:13is almost always dull and practical.
20:17And tell me what part of the country you are in while you are there, because a barn in Pennsylvania
20:22and a barn in Texas were solving different weather entirely.
20:28Next time I am going under the house to the sill plate, which is that line I mentioned where stone
20:34meets timber.
20:35On a barn it is the piece that decides whether the building stands another century.
20:40On your house it is the piece your whole wall is standing on. And I have put it off too
20:47long.
20:48I am Elias Yoder. I farm in Lancaster County, Pennsylvania.
20:54Those buildings were not made by better men than us. They were made by men with fewer ways out, and
21:01that is why every board on them is doing a job.
21:06The people who built this country with their hands knew that, and we are only just starting to remember it.
21:13You can artists on this wall, but of course looking atipples.