Project Description: The application of non-combustible building envelope assemblies, the use of ignition-resistant materials, and the use of proper retrofit techniques in new and existing structures.

• Ignition-resistant construction activities must be combined with defensible space activities. Construction may be subject to State and/or local building codes. Examples include:
• Installing ignition-resistant roofing like non-combustible composite shingles or tiles
• Installing ignition-resistant walls and ember-resistant vents
• Purchasing and installing water hydration systems

Purpose: To provide structural protection for homes, structures, and critical facilities. The default project effectiveness for ignition-resistant construction activities combined with defensible space is 20% (10% for each mitigation measure).