About 1.5 meters away from the wall, Su Yan drew a rectangle seven meters long and two meters wide with a wooden stick, and then drew a larger rectangle 20 centimeters apart from the outside of the rectangle to wrap the relatively small rectangle.

The place between the two rectangles is the location of the foundation, and Su Yan ordered the people to dig out the soil where the foundation is to be buried, so that the depth of the foundation is at least thirty centimeters.

After digging the foundation pit, the tribesmen smeared the adobe bricks with clay and stacked them on top of each other until the outline of a house was built.

It is worth noting that Su Yan still uses the length of adobe bricks as the width of the house wall, compared with the width of the adobe brick as the width of the house wall, in winter, the former has a better insulation effect because of the large thickness.

Just like the cave inhabited by a snake tribe, the thinnest part of the cave wall should exceed the length of the adobe bricks, and the entrance of the cave is blocked by a large stone, and the impact of the cold winter on the inside of the cave is not too great, at least the tribesmen will not freeze to death if they lie on the haystack wearing animal skins.

Houses are slightly less insulated than caves, but there will be stoves built in the houses, which will increase the heat, and for ordinary people, it may be better to live in a house than in a cave.

Su Yan commanded ten tribesmen to build the first house of the snake tribe out of adobe bricks, while the other (adult) tribesmen were still doing fishing and hunting, and the rest of the day was spent making adobe bricks.

In addition, Su Yan also asked the leader to take the hunting party outside to find some materials needed to build a house, including wooden poles with thick arms, wooden sticks with thick fingers, wide leaves, weeds, etc.

All kinds of materials brought back by the hunting party have to be treated, the trunk has to be stripped of small branches, and the leaves and weeds have to be dried for a certain period of time.

Inadvertently, Su Yan actually saw a good thing in the weeds drying in the open field-Vasson, which made Su Yan almost jump up with joy.

As a traditional Chinese medicine practitioner, Su Yan is all too familiar with Vashon.

Vashon, also known as tile flower, to the sky, is a biennial herbaceous plant of the genus Sedum Covasson, widely distributed in various places.

Vashon leaves alternate, thorny, linear to lanceolate, raceme-compact, compact, can be pyramidal 20 cm wide; peduncle up to 1 cm long, sepals oblong, petals red, lanceolate-elliptic, anthers purple; Nearly square, follicles oblong, beak thin, small ovate most, flowering in August-September, fruiting in September-October.

In summer and autumn, the flowers are harvested when they bloom, and the roots and impurities are removed, and they are dried in the sun to obtain useful parts.

The main effects of Vashon are to cool blood, stop bleeding, detoxify, acupoint sores, treat vomiting blood, epistaxis, bloody dysentery, hepatitis, malaria, hot shower, hemorrhoids, eczema, carbuncle poison, boils, soup burns, etc.

Depending on the situation, it can be taken orally or topically.

In modern times, the value of Vashon is average, but in the primitive era, the value of Vashon has increased countless times at once, and it can be called a sacred object.

Su Yan carefully picked up Vashon from the weeds, and before dinner in the evening, Su Yan showed Vashon to the leader and other members of the hunting team, so that the next time they went out, they must pay attention to looking for Vashon's traces, and after finding Vashon, they must not pick it now, and wait until Vashon blooms.

The leader and the rest of the hunting party took Vashon to heart, and prepared to look for him the next time he went out.

It's like collecting stones along the way, and finding Vashon is not a hassle for the hunting party.

Finding Vashon unexpectedly was definitely good news for Su Yan, but it was very helpless to think of another thing he asked the hunting team to look for—rattan.

It's not that the hunting team didn't find the rattan, but some of the rattans they found were not qualified, either too fine or not tough, and could not be used for weaving rattan cards, Su Yan could only let the hunting team find the right rattan, and the sooner they found the right rattan, they could equip the hunting team with rattan cards that could resist the sharp claws of wild beasts.

The construction of the house continues, and after the four walls of the house have been built, the next thing to do is not to go up to the roof, but to build a stove inside the house.

The furnace is boxy, the bottom surface can be directly in contact with the ground without brickwork, and the other five sides are made of bricks, with three openings, one on the top, one on the front and one on the back.

The opening is the largest, so you can add firewood and grass to the stove when it is not burning, and after the stove is burning, you can put large pottery on top to boil water, or you can take animal meat and fish and put it on top for barbecue.

The opening on the front is specially used to add firewood and grass, even after the stove is burned, you can add firewood and grass from time to time, and you must prepare an adobe brick, if there is smoke coming out of this opening, you can use the adobe to cover it.

The opening at the back is for the purpose of ventilation, and a smoke pipe is built for the stove with adobe bricks, which extends all the way to the outside of the house, so that when the stove is burning, there is not much smoke in the house, and most of the smoke is discharged from the smoke pipe to the outside of the house.

Soon, the smoke pipe was built, and the most important thing was to build the roof, if the roof was not up to standard, it leaked when it rained, and the wind was ventilated in winter, and the people of the snake tribe would not want to live in this house even if they were crowded in the cave.

Two tools are required to build the roof – a ladder and a stool.

The ladder and stool had already been taken out by Su Yan when the wall was being built, and it was very simple to make.

The ladder is mainly two wooden poles that are at least as thick as an adult's arm and a thick wooden pole that is the width of an adult's shoulder, the long wooden poles are placed in parallel, and the short wooden poles are fixed on the long wooden poles with grass ropes at a certain distance, and a ladder is quickly made.

The stool made by Su Yan is composed of five thick wooden poles, the four wooden poles are divided into two groups of crosses and fixed with ropes, and finally the remaining thick wooden poles are erected on these two sets of wooden poles, like a grill, which is a very simple stool, but it is also applicable.

With ladders and stools, the people could easily attach wooden poles to the front and back walls, and then tie finger-thick sticks to the wooden poles to make a roof frame.

On the roof frame, two layers of wide leaves are spread, then a thick layer of hay, then two layers of wide leaves, and finally earth bricks are pressed on top to prevent the leaves from being blown away when the wind is strong.

Another piece of animal skin was brought to block the vacancy of the house, and a standard house inhabited by ordinary people was built.

On the third day after the house was built, Su Yan asked several clansmen to splash water on the roof with pottery bowls, from morning to night, for three consecutive days, and only a few drops of water seeped through the house at most.

Su Yan understands that this house is qualified and can be used for living, and he doesn't know how well it will be insulated in winter, but in the rainy season, the house basically won't leak.

The next step is to build houses on a large scale.

[Don't delve into things about Chinese medicine, Heng Yi is not a doctor, all this part of the content is found from the Internet]