BANARTAGuides & Insights
Choose materials with clarity.
Selection advice, assembly checks and purchasing guides for your next project.
Buyer tools: enquiry sheet and purchasing calculators
XPS insulation R-value calculator: thickness and lambda
Calculate XPS insulation RSI and US R-value from thickness and lambda. Compare two quoted boards and check units, test conditions and missing supplier data.
Choosing XPS insulation: thickness, strength & grade
Separate thermal targets from load requirements, compare like-for-like data and specify the XPS grade your assembly actually needs.
XPS in floor assemblies: loads, support & moisture
Compare one 100 mm XPS layer with two 50 mm layers, calculate board area and foam volume, and separate thermal insulation from floor load and moisture design.
Buying XPS insulation boards from China: bulk RFQ checklist
Source XPS insulation boards from China. Build a bulk RFQ around grades, dimensions, finishes, packing volume and a practical repeat-order plan.
Cover images are AI-generated illustrations of materials and applications.