From Jinyuewan Community, it only took Lin Zeng half an hour to drive to the First Central Primary School in Qinghe City. The electric car flexibly traveled through the streets and alleys, except for the time of waiting for the traffic light, Lin Zeng almost galloped all the way.

He parked the electric car at the electric car parking spot next to the school entrance. Use a pack of facial tissues to wipe off the sweat from your face.

The sweltering city is like a steamer, which makes Lin Zeng, who has recently become accustomed to the cool climate of the suburbs, not very adaptable.

After cleaning up, Lin Zeng took out the Wen Jiàn clip placed in the front basket of the electric car.

The content of the text is the plan that Lin Zeng has written down carefully in the past few days, and it has been kept in his mobile phone. Half an hour ago, I just printed the manuscript in the Jinyuewan community.

Walking to the doorman's window at the entrance of the school, a uniformed security guard was flipping through a daily newspaper.

"Hello, security master, I am looking for Principal Chen, and I have made an appointment before. ”

The middle-aged security guard glanced up at Lin Zeng and said, "You have to call the principal." ”

Lin had been to the school and knew that since a series of campus security issues, all schools had strict access controls.

He took out his mobile phone and dialed Principal Chen. After the phone was connected, he said a few words to Principal Chen, and then handed the phone to the security guard through the window.

"Okay, uh-huh. The security master stood up, nodded in response, and opened the small door of the security room for Lin Zeng.

"Thank you, master. Lin Zeng entered the door and ushered in a cold, comfortable air-conditioned wind blowing.

The security master smiled and handed the phone back to Lin Zeng, and said: "The principal's office is on the right stairs and goes up to the third floor, turns left to the third room, and there is a sign hanging at the door, which is easy to find." ”

"Okay, thank you!" Lin Zeng walked out of the security room and walked in the direction pointed by the security guard.

The elementary school campus during the summer vacation was empty and deserted.

Found the principal's office, Lin Zeng politely knocked on the door.

"Please come in. There was a loud voice from inside the door, slightly muffled.

Lin Zeng pushed the door and entered, and saw a middle-aged man in a light gray short-sleeved shirt, bending down to pour water into a teapot.

"Hello President Chen, I'm Lin Zeng. Lin Zeng walked into the principal's office and said politely.

Lin Zeng remained silent, secretly observing the principal of this school with more than 2,000 people in his heart.

He looked to be about fifty years old, with a thin build, but he was tall, with good features and a peaceful gaze.

"Please sit," Chen Ruofei put down the teapot in his hand, smiled and pointed to the red lacquered wooden sofa beside him, "Please drink tea." ”

Lin Zeng sat down on the sofa, took the light green tea handed by Principal Chen, and started it slightly hot, Lin Zeng was not in a hurry to drink it, and said, "Thank you, Principal." ”

The two of them made tea and chatted for a few words, and soon got to the point.

"President Chen, the landscape design of our company is not the same as ordinary urban greening. First of all, on the green crops planted, those common green plants are hardly used, but a large number of edible crops are used. For example, the vine tomato you wanted to buy before is one of them. Lin Zeng spread out the plan and explained to Chen Ruofei in detail.

Chen Ruofei listened patiently while drinking tea, and before he thoroughly understood, he did not interrupt Lin Zeng's words, but silently digested them in his heart.

"Secondly, our design scheme pays more attention to the greening of the three-dimensional space, and uses a large number of climbing plants. Courtyards, fences, walls, scaffolding, make full use of various vertical green spaces. The advantages of three-dimensional greening far exceed ordinary flat land greening. Under the same area, the amount of green in three-dimensional greening far exceeds that of flat greening. If the ordinary flat land greening looks like a garden, our company's three-dimensional design can turn this land into a small forest. Especially in densely built cities, the pleasant feeling brought by three-dimensional greening is difficult to achieve with ordinary greening. For this design, Lin Zeng consulted a large number of three-dimensional greening materials. He saw that Principal Chen was listening attentively, so he stopped and took a sip of the tea in his hand.

Chen Ruofei recalled the several design drawings he had received so far, and found that there were indeed very few shadows of vertical greening.

He thought for a moment and immediately asked: "I have also heard the description of three-dimensional greening in some cities such as Japan and Singapore in the news reports, but the difficulty and maintenance cost of three-dimensional planting must exceed that of ordinary greening, and you also know that we are only public schools, and it is impossible to spend a lot of money on this." ”

Lin Zeng heard President Chen's doubts, smiled and continued: "This is our company's third advantage. ”

He flipped open a page of paper and pointed out a line of text to Chen Ruofei.

"Our company can guarantee that the school only needs to send people to carry out the simplest irrigation and pruning maintenance, and on this premise, we can guarantee that any non-human-caused plants will be replaced and maintained free of charge. The term is three years. This can be written into the contract. ”

Lin Zeng proposed a maintenance time far longer than the time given by other horticultural companies. In the final analysis, he can be so confident because the plants cultivated by his seeds have a vitality that ordinary plants can hardly match.

For example, the vine red jade tomato, so far, he has not received feedback from growers about planting failures.

Chen Ruofei was very satisfied with his maintenance time. But he didn't rush to give an answer, and added tea to Lin Zeng's teacup, and instead said: "Your company's design concept is very avant-garde, and our school welcomes you to participate in the bidding for the school's plantation and sky garden." Do you need to go to the rooftop to check it out? It would be great if you could give us a concrete design drawing. ”

Lin Zeng nodded immediately.

Most of the design solutions he brought were actually design concepts. Right now, it's important to understand the design area.

Principal Chen stood up and said, "Why don't we go up and have a look now?" ”

Lin Zeng followed Chen Ruofei and left the principal's office. Walking out of the air-conditioned room, the heat wave hit, and they climbed to the top floor in one go. It was the scorching sun, and in the blink of an eye, it was a hot sweat.

The flat rooftop of the top floor without any shelter exudes a blazing atmosphere. Lin Zeng stepped on the concrete floor, and the temperature of the ground seemed to melt the soles of his shoes.

"Principal Chen, your classroom on the sixth floor must be very hot in the summer. Lin Zeng wiped the beads of sweat from his forehead and asked out loud.

"Yes. Chen Ruofei shook his head helplessly, "Although the school has installed air conditioning in all the classrooms on the top floor, the large classrooms full of forty or fifty people are still extremely hot in the two months before and after the summer vacation. That's one of the reasons why we built the Sky Garden. ”

"Vertical greening, the cooling effect on the surface of the building is very obvious," Lin Zeng squatted down, touched the cement floor of the roof with his hand, and sure enough, it was hot, "Now the surface temperature of the building must exceed 40 degrees, if you build a three-dimensional scaffolding, multi-layer green plants to resist direct sunlight, at least 6-10 °C can reduce the surface temperature of the building"

Lin Zeng and Chen Ruofei walked around on the rooftop of the teaching building. He slightly estimated that the overall area was about 600 square meters.

He used his phone to take pictures of some special corners, ready to be considered in the design.

"Principal Chen," Lin Zeng said when he left the rooftop, "I wonder if the school's conception of campus greening is only considering the rooftop?"

Chen Ruofei paused slightly, and said puzzledly: "Our school itself is a green school, except for this one that is still under planning, the greening of other areas is already very perfect, and it is not suitable to make more changes." ”

"Principal Chen, from our company's point of view, there are still many green spaces in the school. I think, for example, this blank wall. Lin Zeng casually pointed to the white wall next to the stairs and said, "If this white wall is covered with a layer of tender green plants, the overall appearance of the school campus will be completely different." If every wall of the school becomes a green covered area, blooming and colorful in all seasons, Qingyi Elementary School will probably become the most beautiful campus in Qinghe City!"