Fibreboards in construction — properties and uses Which statement best summarizes common properties and uses of fibreboard products in building work?
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AFibre boards are used for thermal and acoustic control (insulation and sound absorption).
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BFibre boards can be used for lightweight non-structural members such as partitions or false ceilings.
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CFibre boards are manufactured by bonding lignocellulosic fibres with resins and additives.
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DAll of the above.
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ENone of the above.
Answer
Correct Answer: All of the above.
Explanation
Introduction / Context:Fibreboards (e.g., hardboard, medium-density fibreboard, insulating fibreboard) are engineered wood products. They are widely used for interior linings, partitions, and acoustic/thermal applications due to their processability and uniform properties.
Given Data / Assumptions:
- Products include MDF, hardboard, and low-density insulating boards.
- Manufacture involves wood fibres, resins, and sometimes waxes or fire retardants.
- Typical uses are non-structural interior applications unless specifically rated.
Concept / Approach:Fibreboards derive their performance from the fibre network and resin bonding. Low-density boards offer insulation and sound absorption, while medium/high-density boards provide smooth surfaces for furniture and interior finishes.
Step-by-Step Solution:
Relate composition (fibres + resin) to properties (stability, machinability).Map densities to uses: low density → acoustic/thermal; higher density → panels and furniture parts.Confirm that these uses are typically non-loadbearing and interior unless treated.Verification / Alternative check:Standards and manufacturers’ datasheets specify density, modulus, and recommended applications aligning with thermal/acoustic control and lightweight partitions.
Why Other Options Are Wrong:
- Since A–C are correct descriptors, “All of the above” (D) is the best single choice.
- “None of the above” (E) contradicts well-established practice.
Common Pitfalls:Using fibreboard in wet areas without moisture-resistant grades; not accounting for fire performance and code compliance; assuming structural capacity without certification.
Final Answer:
All of the above.