Doomsday: Unlimited upgrades to the shelter

Chapter 172 Overall Renovation of Shelter
At first, he didn't dare to use much force, he just bumped it lightly on the ground, and lifted the end that was in contact with the ground to see that there were no traces, scratches or scratches at all.

So, he boldly waved the glass and threw it to the ground.

There was only a dull banging sound, and it even bounced up and down several times, but the glass still had no damage, no scratches, no cracks. Anyway, it looked no different from new glass to the naked eye.

But Xie Yannan realized another problem. If all the shelters were covered with this kind of glass, the air in the entire Basin Valley would not be well circulated, oxygen would be insufficient, or even a state of hypoxia.

He frowned, and suddenly thought of something called a reverse osmosis membrane that he had learned about before. The design principle is very simple, that is, to set the size of the permeable molecules to prevent some things from passing through.

For example, water molecules are much larger than air molecules, so the size of air molecules can be directly used as the limit value, and air can pass through, but water cannot.

But this thing is a bit high-tech, and I don't know if it is in the system.

Xie Yannan checked it carefully, and found that the system had this thing, and was really stunned for a moment.

That’s easy to do. The membrane doesn’t need a large area to be installed on the diamond glass, and countless small holes are created. Each hole has a thickness of one or two millimeters.

Of course, such fine craftsmanship can only be completed through a system.

The diamond glass covering the surrounding mountain of the shelter is intended to be in an arc shape. The arc shape is filled with dense ventilation holes that can be used to exchange air, but rainwater cannot penetrate because it is a large molecule.

[The system has automatically turned on the smart mode]

[According to the glass cover: 2000 points]

[Requirement: Follow the host's uploaded idea drawing to make a dark transfer, and the whole fight is seamless]

[Additional requirements: Make 2 breathable holes, and install reverse osmosis membranes in the holes]

[Material fee: 2000 points]

【Labor cost: 5000 points】

【Do you need to upgrade】

【Yes】

[System points have been updated, there are 29101 points]

I didn't expect the labor cost to be so expensive, but the amount of the project is indeed huge, not to mention the drilling of [-] air holes, and the perfect installation of reverse osmosis.

This was the biggest thing Xie Yannan felt that he had done today, and then he hurried back to install the floor, thinking that he would no longer have to walk on that crumbling concrete floor, he suddenly felt a little excited for no reason.

But these things can only be done through the system.

Although the colors of these floors are not the same, he still wants to unify the colors. The bedrooms are all in warm colors, the corridors are in cool colors, and the rest of the floors are random.

After making this plan, Xie Yannan activated the system with his thoughts.

[The system has automatically turned on the smart mode]

【Services】

[Laying floor tiles: upload drawings according to the host]

【Paying object: basement】

【Labor cost: 2000 points】

【Do you need to upgrade】

【Yes】

[System points have been updated, there are 27101 points]

Although the floor tiles are all 80*80, the area involved is very large, covering the entire area of ​​the basement, so Xie Yannan waited for a long time.

Fortunately, the overall effect is good.

Xie Yannan walked around casually. The bedroom had his favorite light blue floor, and he didn't care much about other places.

But there is another problem. Bathrooms and kitchens must have wall tiles.

Otherwise, the walls will always be made of cement and latex paint, and it will be extremely ugly once water vapor penetrates.

But what was pulled back were all floor tiles, which had to be cut into 80*40 specifications before they could be perfectly attached to the wall.

Xie Yannan himself studied architecture, and he knew that if the area of ​​the bricks is too large and the bonding area is too small, it is easy to cause the wall bricks to fall.

[The system has automatically turned on the smart mode]

【Services】

[Floor tile cutting: according to the host drawing]

[Laying wall tiles: according to the host’s drawings]

【Service fee: 3000 points】

[System points have been updated, there are 24101 points]

[System upgrade...]

You must know that there is a master bedroom in the basement, Zeng Rui, Ma Wu, Qin Xiaocheng, and Xiaoxiao have a total of five bathrooms, and a public kitchen. This processing fee is nothing at all.

It's just that the lights above the head don't have those strange shapes, but Xie Yannan's simple energy-saving lamps are formed after phosphor powder processing.

Xie Yannan lay on the bed and rested for a while before the system issued a completion notification.

He walked into the bathroom and took a look. Sure enough, the tiles fit well no matter from the ground or the wall, which was obviously a higher grade than the cement floor and the cement wall.

The next thing is the walls. Now the walls are all made of cement. Since we have taken so much paint, we should use all of them to scrape a layer of paint on the walls and ceilings of the rooms except the kitchen and bathroom.

The color is still creamy white.Xie Yannan always prefers to be more concise.

He plans to make Xiaoxiao's room pink, as a little girl, there is always something pink.

The rest is subject to stock availability.

[The system has automatically turned on the smart mode]

【Services】

[Paint the wall: operate according to the host drawing]

【Service fee: 5000 points】

【Whether to upgrade】

【Yes】

[System points have been updated, there are 19101 points]

[System upgrade...]

The amount of these upgrades today should be the largest amount of work for the system so far. Xie Yannan is very worried that the system will suddenly lose his temper and go on strike and quit.

Fortunately, although these wall painting tasks were relatively slow, the system never reported an error.

Xie Yannan has another bold idea.

Because the refuges are all natural barriers piled up by the surrounding mountains, Xie Yannan wants to make a concrete slope around the mountain, so that the defense of the entire refuge will be stronger.

This time, a lot of cement was recovered in the system.

If possible, you can also put a layer of cement on the ground of the basin, except of course for planting and pond locations.

Satisfy the slope around the shelter first, and then the ground, Xie Yannan thought of it and immediately started to do it.

[The system has automatically turned on the smart mode]

【Services】

[Reinforced Cement: According to the Host’s Idea Drawing]

[Service fee required: 5000 points]

【Do you need reinforcement】

【Yes】

[System points have been updated, there are 14101 points]

[System upgrade...]

Before Xie Yannan did all this, he had already confirmed that there was no one else on the ground of the shelter.After starting the system, I hurried back to the basement to avoid conflict with the concrete floor being paved.

This time it will definitely take a long time to process, but Xie Yannan is not too worried.

(End of this chapter)