Systems will vary depending on building layout.
Natural systems are best suited for shorter buildings due to the risk of smoke-logging in the shaft. We’d recommend no higher than 18m.
Natural systems can be used on code-compliant buildings. In particular, you can’t have extended corridors.
Natural systems require a 1.5m2 shaft through the building which can’t be used by any other services.
If you want to learn more about natural systems, including where they’re applicable, how to specify them, what products to use, what legislation governs them, we’ve got a comprehensive CPD to help you out.