Facade Material
Facade material records the composition and fire classification of a building's external wall cladding and insulation, and is queried in property proposal forms because combustible facades enable rapid, hard-to-suppress vertical fire spread.
- Category
- Building
- Data type
- Text
- Risk drivers
- Severity, Accumulation
- Underwriting impact
- Premium, Condition/Warranty, Exclusion
Typical proposal-form questions
- What is the outer cladding material of the facade, and what is its fire classification?
- Does the facade include an external thermal insulation composite system (ETICS), and if so, what insulation material and cladding is used?
- Is there a cavity behind the cladding, and if so, are cavity barriers installed to prevent chimney-effect fire spread?
Evidence
- Facade construction specification
- Fire classification certificate for cladding and insulation
- Risk engineering survey report
Why it matters for underwriting
Facade material has become one of the fastest-growing concerns in property underwriting following high-profile total losses in which combustible cladding or insulation allowed a small fire to spread vertically across an entire building face within minutes, far outpacing sprinkler protection and firefighting response designed around internal fire spread assumptions. Underwriters need to know the cladding material, the insulation behind it, and whether the assembly is tested and classified as a system, because individually non-combustible components can still form a combustible assembly in certain cavity configurations.
Capturing the attribute and evidence
Proposal forms ask for the cladding material, whether an external thermal insulation composite system is present, the insulation type, and whether cavity barriers are installed to interrupt chimney-effect fire spread within ventilated facades. Facade construction specifications and fire classification certificates for the tested assembly, not just individual components, are the key evidence, supplemented by a risk engineering survey where cladding history is unclear.
Effect on coverage, premium and conditions
Facades built from non-combustible materials with a classified, tested assembly generally support standard terms. Combustible cladding, unclassified insulation systems, or facades where cavity barriers cannot be confirmed frequently trigger premium loadings, sublimits on fire damage, remediation conditions, or in severe cases exclusion of facade-related fire spread or declinature until the cladding is replaced.
Mitigation measures
Where combustible facade materials are identified, insurers typically recommend replacing cladding and insulation with classified non-combustible alternatives, retrofitting cavity barriers to limit chimney-effect spread, and obtaining independent assessment of the installed assembly, since laboratory classifications for individual products do not always reflect real-world installation quality.