Based on the climatic characteristics of the cold regions in Linyi, Shandong, the selection of insulation materials for self built houses in rural areas can be based on three steps: material properties, core indicators, and suitable scenarios, taking into account insulation effect, fire safety, and local construction convenience.

???? Comparison of commonly used insulation materials for rural self built houses

Polystyrene board (EPS): lightweight, easy to construct, affordable, with a fire rating of mostly B2, suitable for ordinary exterior wall insulation scenarios with limited budgets.

Graphite polystyrene board: with lower thermal conductivity and higher fire resistance rating, it is currently the most cost-effective choice for external wall insulation, with better insulation effect than ordinary polystyrene board.

XPS extruded board: With excellent insulation performance and strong moisture and pressure resistance, it is relatively expensive and more suitable for areas such as roofs and floors that require high moisture and pressure resistance.

Rock wool board: Class A non combustible material with excellent fire resistance, but strong water absorption. Complete waterproof treatment must be done during construction, suitable for areas with high fire protection requirements.

Polyurethane foam: its thermal conductivity is extremely low, and its thermal insulation and waterproof properties are outstanding. It is suitable for roofing and other parts with high requirements for thermal insulation and waterproof. Its disadvantage is that its cost is high.

Foam concrete: simple construction, low cost, poor thermal insulation effect, suitable for non core thermal insulation parts with limited budget.

Selection of Doors and Windows for Shandong Rural Self built Building System (3). png

???? Key indicators for core selection

Thermal conductivity: materials with low values are preferred. Polyurethane foam can be as low as 0.02 W/(m · K). EPS boards are usually 0.03-0.04 W/(m · K). The lower the thermal conductivity, the better the insulation effect.

Fire Protection Rating: Priority should be given to selecting compliant products according to national standards. For densely populated areas, it is recommended to choose Class A non combustible materials. For ordinary self built houses, at least Class B1 non combustible materials should be selected to avoid flammable Class B3 products.

Durability: High quality insulation materials can have a normal service life of 15-20 years. Brand products with smooth surfaces, complete labeling, and formal testing reports are preferred to reduce maintenance costs in the later stage.

Moisture and water resistance: In the rainy season in Linyi area, the humidity is high, and attention should be paid to the water absorption of materials. Materials with strong water absorption, such as rock wool board, must be equipped with complete waterproof sealing technology.

???? Suggestions for adapting to local selection in Linyi

Climate adaptation: Linyi belongs to a cold region, and external insulation solutions with outstanding insulation performance are preferred. The recommended thickness of the external wall insulation layer is not less than 80mm, which ensures better insulation effect during cold periods.

Procurement and construction: Priority should be given to selecting insulation materials commonly found in the local market of Linyi, which is more convenient for procurement and finding local construction teams, avoiding difficulties in replenishing and repairing niche materials in the later stage.

Construction synchronization: It is best to synchronize the construction of external wall insulation with the main body of the house, and seal and close the window sills, eaves, and other areas that are prone to water accumulation to prevent the insulation layer from becoming ineffective due to water ingress.

Shandong Huaneng Insulation Materials Co., Ltd. is a pipeline insulation manufacturer in Linyi. As an integrated insulation and decoration manufacturer in Shandong, our main products include integrated insulation and decoration, pipeline insulation, exterior wall insulation materials, extruded polystyrene board, thermosetting polystyrene board, and rubber insulation. If you need it, you can contact us by phone.

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