Measures · Ventilated crawl space
Ventilated crawl space with igloo FREE
Work out the typical height of a ventilated crawl space with plastic dome formwork (igloo). Below the result you find the formula and the standard.
Indicative pre-sizing. It does not replace a structural calculation signed by a licensed engineer. For seismic zones with agS (design ground acceleration) > 0.15g, long spans or use classes III/IV → talk to a structural engineer.
Pick a calculation from the list to start.
Formula, example and standard
Building practice + ASL · typical 30-50 cm
Example with the starting values (Region: National standard): Minimum height: 20 cm. Types: precast Cupolex/igloo domes, lost formwork, traditional crawl space.
- There is no single national standard: it depends on municipal building codes and the ASL (local health authority).
- Purpose: ventilating the ground and stopping rising damp.
- Lombardy sets a 50 cm minimum; other regions vary.
Source: Local building codes + ASL · studiomadera.it
Indicative pre-sizing: it does not replace a calculation signed by a licensed engineer.
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