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Materials

Category overview

Weightings			Minimum standards
Fully fitted 13.5%	Shell only 17.5%	Shell and core 14.5%	Mat 03

Summary

This category encourages steps taken to reduce the impact of construction materials through design, construction, maintenance and repair. Issues in this section focus on the procurement of materials that are sourced in a responsible way and have a low embodied impact over their life including extraction, processing and manufacture and recycling.

Category summary table

Issue ID	Issue name	Credits	Credit summary
Mat 01	Life cycle impacts	Up to 6	Reductions in the building’s environmental life cycle impacts through assessment of the main building elements.
Mat 02	Hard landscaping and boundary protection	1	Reductions in the environmental life cycle impacts through assessment of the hard landscaping and boundary protection elements.
Mat 03	Responsible sourcing of materials	4	Materials sourced in accordance with a sustainable procurement plan. Key building materials are responsibly sourced to reduce environmental and socio-economic impacts.
Mat 04	Insulation	1	Recognition of the use of thermal insulation which has a low embodied environmental impact relative to its thermal properties.
Mat 05	Designing for durability and resilience	1	The building incorporates measures to reduce impacts associated with damage and wear-and-tear. Relevant building elements incorporate appropriate design and specification measures to limit material degradation due to environmental factors.
Mat 06	Material efficiency	1	Opportunities and measures have been identified and taken to optimise the use of materials.

Mat 01 Life cycle impacts

Mat 02 Hard landscaping and boundary protection

Mat 03 Responsible sourcing of materials

Mat 04 Insulation

Mat 05 Designing for durability and resilience

Mat 06 Material Efficiency