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Materials susceptible to changes in properties
2.12NI-wide·Technical Booklet B Materials and Workmanship
Some materials may undergo changes to their properties when they are exposed to certain environmental conditions which may affect their performance over time. Materials that are susceptible to change
materialsstructuraldurabilityResistance to substances in the subsoil
2.14NI-wide·Technical Booklet B Materials and Workmanship
Any material in contact with the ground or in the foundations will be suitable if it is capable of resisting attacks by deleterious material in the subsoil such as sulfates.
materialsstructuralfoundationssite-planningRestriction on urea formaldehyde foam use
3.1NI-wide·Technical Booklet B Materials and Workmanship
Other than the circumstances outlined in 3.2 urea formaldehyde foam should not be used in the erection, structural alteration or extension of a building.
structuralprotection-from-falling