Short answer

Prioritize timber as a primary construction material to leverage its carbon sequestration capabilities and reduce the embodied carbon of buildings.

Field: Sustainability
Source: Preprints.org (2023)
Method: Life Cycle Assessment (LCA)
Evidence: Strong effect

Utilizing timber in building construction offers a viable strategy for mitigating greenhouse gas emissions by actively storing carbon within the building materials themselves. This sustainability research insight is drawn from a 2023 study published in Preprints.org. Using Life cycle assessment (lca), researchers explored how this design variable affects real-world outcomes. The key design takeaway: Prioritize timber as a primary construction material to leverage its carbon sequestration capabilities and reduce the embodied carbon of buildings.

Study

SustainabilityRecentStrong effect

Timber construction sequesters carbon, significantly reducing pre-use GHG emissions in buildings.

Utilizing timber in building construction offers a viable strategy for mitigating greenhouse gas emissions by actively storing carbon within the building materials themselves.

Preprints.org · 2023

Key Findings

01Timber buildings demonstrate a significant potential for carbon storage.
02The 'cradle-to-handover' emissions for timber construction systems are lower compared to conventional materials, especially when considering embodied carbon.
03Different timber construction technologies (e.g., X-Lam vs. framed) exhibit varying levels of GHG emissions and carbon storage.

Application

Design takeaway

Prioritize timber as a primary construction material to leverage its carbon sequestration capabilities and reduce the embodied carbon of buildings.

How to apply

When designing new buildings, conduct a Life Cycle Assessment (LCA) focusing on the embodied carbon of materials, and actively select timber-based systems where feasible.

Project actions

01When researching materials for your design project, look for data on embodied carbon.
02Consider how the material's lifecycle, from raw material to finished product, affects its environmental impact.

Method & Evidence

AimTo quantify the greenhouse gas (GHG) emissions associated with timber construction systems during the pre-use phase (cradle-to-handover) and compare their carbon storage potential against other building materials.

MethodLife Cycle Assessment (LCA)

ProcedureThe study employed a Life Cycle Assessment (LCA) methodology, specifically focusing on the 'cradle-to-handover' (C2H) phases (A1-A5). This involved calculating the GHG emissions associated with the production and construction of two distinct timber building systems: one using Cross-Laminated Timber (X-Lam) panels and another using a framed structure.

ContextBuilding construction and materials

Variables

IVType of timber construction system (e.g., X-Lam panels, framed structure)

DVGreenhouse gas (GHG) emissions (CO2e) during the cradle-to-handover phase

CVBuilding size, building function, geographical location (implied for material sourcing and transport)

Strengths & Limitations

Strengths

+Focuses on a critical phase (pre-use) of building emissions.
+Compares different timber construction technologies.
+Utilizes a recognized methodology (LCA).

Limitations

The study only covers the initial stages of a building's life. Real-world applications may vary based on local regulations, specific timber treatments, and transportation distances.

Reliability & validity

The reliability of the findings depends on the accuracy and completeness of the LCA data used for material production and construction processes. Validity is strengthened by the comparison of different timber systems, but limited by the focus solely on the pre-use phase.

Think critically

How might the end-of-life phase of timber buildings, including recycling and disposal, affect their overall sustainability compared to other construction materials?

Design Principles

"Embodied carbon reduction through material selection and carbon sequestration."

The construction industry is a major contributor to global greenhouse gas emissions. By adopting timber construction, designers and engineers can leverage the inherent carbon sequestration properties of wood to create more sustainable buildings, particularly addressing emissions generated during the production and construction phases.

What This Means for Your Design

Using wood to build houses and buildings actually stores carbon from the atmosphere, making them better for the environment than buildings made from concrete or steel, especially when you look at the emissions from making and putting the materials together.

How to use in your project

1.Reference this study when discussing the environmental impact of material choices in your design project's analysis or evaluation sections.

Add to My Project

Quick Cite

Paragraph starter

Research indicates that timber construction systems offer significant advantages in mitigating greenhouse gas emissions during the pre-use phase, primarily due to the inherent carbon sequestration properties of wood. A Life Cycle Assessment (LCA) approach, focusing on the 'cradle-to-handover' stages, reveals that timber buildings can store carbon, thereby reducing the overall carbon footprint compared to conventional materials.

Source

Preprints.org

Carbon Storage in Timber Buildings: LCA from Cradle-To-Handover Approach for GHG Emissions Mitigation

journal · 2023

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Questions About This Research

What does the research say about timber construction sequesters carbon, significantly reducing pre-use ghg emissions in buildings?: Prioritize timber as a primary construction material to leverage its carbon sequestration capabilities and reduce the embodied carbon of buildings. Evidence: Preprints.org (2023).
Why does "Timber construction sequesters carbon, significantly reducing pre-use GHG emissions in buildings." matter for design?: The construction industry is a major contributor to global greenhouse gas emissions. By adopting timber construction, designers and engineers can leverage the inherent carbon sequestration properties of wood to create more sustainable buildings, particularly addressing emissions generated during the production and construction phases.
How can designers apply this research?: Prioritize timber as a primary construction material to leverage its carbon sequestration capabilities and reduce the embodied carbon of buildings.
What were the main findings?: Timber buildings demonstrate a significant potential for carbon storage.. The 'cradle-to-handover' emissions for timber construction systems are lower compared to conventional materials, especially when considering embodied carbon.. Different timber construction technologies (e.g., X-Lam vs. framed) exhibit varying levels of GHG emissions and carbon storage.
What research method was used?: Life Cycle Assessment (LCA).
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2023 journal from Preprints.org.
What should I do differently in my next project?: When designing new buildings, conduct a Life Cycle Assessment (LCA) focusing on the embodied carbon of materials, and actively select timber-based systems where feasible.
What are the limitations?: The study's scope was limited to the 'cradle-to-handover' phase, not including the operational or end-of-life phases of the buildings. The specific timber species, sourcing, and manufacturing processes can influence the results.