Temperature of Prefabricated Panel Houses

The performance of prefabricated panel houses under different temperature conditions is as follows:

I. Temperature Perception in Living Environment
Due to material properties, old-style prefabricated panel houses have poor thermal insulation. In winter, indoor heat easily dissipates through the gaps in the panels, resulting in significantly lower indoor temperatures compared to the outdoors. Even with heating equipment turned on, it is difficult to maintain warmth, creating a living experience akin to an 'ice cellar'. In summer, poor ventilation causes heat to accumulate indoors, creating a stuffy environment similar to a 'steamer'. This weak temperature regulation ability is mainly due to the lack of an effective thermal insulation layer in the prefabricated panel structure and the presence of gaps at the joints, which exacerbate heat exchange between the indoors and outdoors.

II. Temperature Tolerance Range of Materials

1. Low-Temperature Tolerance: Cement prefabricated panels are prone to freeze damage in environments below -5°C, manifested by the freezing and expansion of internal moisture, leading to structural cracking or strength reduction. Their frost resistance is influenced by material composition (such as cement grade and aggregate type), manufacturing process (such as vibration compaction and curing cycle), and curing conditions (such as humidity and temperature control). For example, materials with high-grade cement or added antifreeze agents can enhance low-temperature tolerance.
2. High-Temperature Tolerance: When exposed to temperatures above 100°C for an extended period, prefabricated panels develop micro-cracks due to thermal expansion and contraction cycles, which gradually expand and lead to cracking. If the temperature exceeds 200°C, the cement hydration products in the material decompose, the bond strength between the aggregate and the cement matrix decreases, ultimately resulting in strength loss and even pulverization. This characteristic limits the use of prefabricated panels in high-temperature industrial environments or fire scenarios.

III. Practical Application Recommendations for Temperature Impact
To address living environment issues, thermal insulation performance can be improved by attaching insulation panels externally, filling gaps, or adding double-glazed windows. In regions with extreme temperatures, materials with stronger frost resistance or additives should be selected. For material tolerance, prefabricated panels should be avoided in scenarios involving prolonged high temperatures (such as boiler rooms) or frequent freeze-thaw cycles (such as uninsulated buildings in northern regions). During construction, curing specifications must be strictly followed to enhance durability.