Dimensional stability: design task for foundations and below-grade structures
Below grade, dimensional stability must be coordinated with waterproofing, soil pressure and the backfilling sequence.
In foundations and below-grade structures, dimensional stability requires moisture conditions; also check soil pressure.
Dimensional stability: application boundary in foundations and below-grade structures
In foundations and below-grade structures, dimensional stability has an important boundary. Product stability does not cancel movement in the substrate, supports or structural joints.
For dimensional stability in foundations and below-grade structures, address this specific risk: mechanical damage during backfilling or incompatibility with the waterproofing system.
Dimensional stability: evidence for foundations and below-grade structures
For foundations and below-grade structures, the dimensional stability source states: D130 dimensional stability is stated as no more than 0.2%, with a coefficient of thermal expansion of 8×10⁻⁶ 1/°C.
For dimensional stability in foundations and below-grade structures, apply this principle. Stability is achieved only with correct bearing, properly detailed joints and no unintended bending action.
Dimensional stability: detailing for foundations and below-grade structures
The foundations and below-grade structures drawing develops dimensional stability through two decisions: waterproofing type; then protective layer.
For dimensional stability in foundations and below-grade structures, dimensions and interface materials belong in the design, not in an improvised site decision.
Dimensional stability: inputs for foundations and below-grade structures
Before assessing dimensional stability in foundations and below-grade structures, obtain thermal movement, settlement, the movement-joint map and substrate tolerances.
For foundations and below-grade structures, the verifiable dimensional stability requirement is to coordinate substrate movement joints, thermal movement and the insulation layout.
Dimensional stability: installation in foundations and below-grade structures
The installation rule for dimensional stability in foundations and below-grade structures is to accept the substrate before covering it.
During foundations and below-grade structures work concerning dimensional stability, never bridge a designed movement break unless a dedicated detail permits it.
Dimensional stability: accepting work in foundations and below-grade structures
Acceptance of dimensional stability in foundations and below-grade structures starts by matching delivery labels, drawings and the installed layout.
For dimensional stability in foundations and below-grade structures, close the identified risk with a photograph, measurement or record, not a verbal explanation.
The final foundations and below-grade structures criterion for dimensional stability is that the foam-glass layout accommodates structural movement without restraint.
Dimensional stability: conclusion for foundations and below-grade structures
In foundations and below-grade structures, foam glass delivers its dimensional stability benefit through a coordinated detail, not one schedule entry.
The foundations and below-grade structures workflow for dimensional stability is to evidence the property, issue the detail, accept installation and retain concealed-work records.