Option comparison: design task for walls and façades
In an external envelope, option comparison becomes visible where the substrate, insulation and finish meet.
In walls and façades, option comparison requires interfaces around openings and compatibility with finish layers; also check continuity of the insulation layer.
Option comparison: evidence for walls and façades
For walls and façades, the option comparison source states: Foam glass combines a closed-cell structure, non-combustibility and load-bearing capability, but must be handled carefully as a rigid brittle material.
For option comparison in walls and façades, apply this principle. A fair comparison uses structural function, operating risk and whole-life cost rather than the price per cubic metre alone.
Option comparison: inputs for walls and façades
Before assessing option comparison in walls and façades, obtain the same design life, service regime, detail scope, installation risks and maintenance assumptions.
For walls and façades, the verifiable option comparison requirement is to compare options against the same list: thermal performance, moisture, fire, load, installation, repair and end of life.
Option comparison: detailing for walls and façades
The walls and façades drawing develops option comparison through two decisions: fixing method and sequence of finish installation; then the panel layout.
For option comparison in walls and façades, dimensions and interface materials belong in the design, not in an improvised site decision.
Option comparison: application boundary in walls and façades
In walls and façades, option comparison has an important boundary. Unit price ignores load-bearing function, moisture, fire behaviour and future repair costs.
For option comparison in walls and façades, address this specific risk: an incorrect panel layout or an unprepared substrate.
Option comparison: installation in walls and façades
The installation rule for option comparison in walls and façades is to stagger the joints and protect the completed layer until the façade system is installed.
During walls and façades work concerning option comparison, assess trial details under one protocol instead of changing the criteria.
Option comparison: accepting work in walls and façades
Acceptance of option comparison in walls and façades starts by matching delivery labels, drawings and the installed layout.
For option comparison in walls and façades, close the identified risk with a photograph, measurement or record, not a verbal explanation.
The final walls and façades criterion for option comparison is that the decision compares equivalent functions and whole-life effects.
Option comparison: conclusion for walls and façades
In walls and façades, foam glass delivers its option comparison benefit through a coordinated detail, not one schedule entry.
The walls and façades workflow for option comparison is to evidence the property, issue the detail, accept installation and retain concealed-work records.