1, the price is often cheaper;
2. Broad vision and condescending feeling;
3. Good ventilation and lighting effect, which can save lighting electricity in rainy days;
4, less affected by external noise, no noise interference from upstairs residents and corridor neighbors, relatively quiet;
5. Because there are few people walking, the corridor is sanitary and there are many personal spaces;
6. The rainy season is relatively dry, and dehumidification is not needed;
7. The height of mosquitoes is basically gone;
8. Good privacy, etc. ?
Disadvantages of the top floor:
1, the most easily concerned by the owner is generally the waterproof and thermal insulation problem of the top floor, which is hot in summer and cold in winter, and consumes more electricity and water resources than the low-rise units in summer;
2. Once there is a problem with the quality of the roof building and there is water leakage, the top floor bears the brunt;
3, the water pressure is generally small;
4. In case of life or work changes and urgent need for money, the top floor is generally not easy to sell;
5. Generally, the elevator room floor and equipment room are above the top floor. If the quality of the builder is not good, there may be noise
6. Sharing the cost of elevator operation and maintenance may be more.
How to keep the top floor warm?
1, laying insulation layer is a relatively primitive insulation method, which was particularly popular in the past, but it has been used less and less in recent years. When the sun shines on the insulation layer, the high temperature will be conducted away by the air between the insulation layer and the roof, thus effectively preventing the high temperature of the top ceiling. As for the decorative insulation layer, it is usually laid with high-grade concrete insulation bricks, and other insulation materials can also be used. However, it should be noted that new materials cannot be selected, but fire protection is required. ?
2. Covering insulation with insulation materials and laying insulation bricks, assuming shading, not only costs high, but also affects the activities of the roof. At present, it is more popular to spread a simple layer of heat insulation material on the roof, which is also based on the principle of using air to insulate heat. Generally, foam materials are used as thermal insulation materials, such as foam cement board and foam cotton, and the effect is good. In order to avoid fire caused by high temperature, materials should be fireproof. ?
3, roof water storage, water is a good heat transfer fluid, and there is no cost. You can add a "small fence" around the top floor to store water, which will have a good heat insulation effect. The deeper the water layer, the better the heat insulation effect, but combined with the bearing capacity of the roof, don't let the ceiling seep. ?
4. Install reflective device. You can install a reflector on the roof to reflect the sunlight shining on the roof. If conditions permit, you can also install solar panels to generate electricity. There are many materials suitable for use as reflective devices as long as they can provide mirrors. Glass, thin stainless steel plate and tin foil plate are all good reflective materials. ?
5, cover plants, plants can not only absorb light energy, but also make umbrellas. You can directly fill the roof with soil to grow vegetables, eat them, and cool the top floor. A large area of vine crops has a good shading and cooling effect. Planting ivy and other vines to cover the whole roof can enjoy cool summer.