The decision to invest in an afforestation project with the primary aim of producing timber may involve many personal and environmental factors alongside financial considerations. Adoption of a forestry enterprise within a farming unit represents a change in land use and a long-term investment of land, labour and resources. Financial evaluation provides a structured and objective means to inform the decision and allows comparison of afforestation with other economic uses of land.
Afforestation projects can take a number of forms, from planting steep areas or wet corners of a farm to integrating timber trees with agricultural production or establishing plantation woodlands. Some afforestation projects such as commercial plantation woodlands have the potential to produce quality timber products alongside diversifying farm incomes and providing other environmental benefits such as carbon sequestration and flood risk mitigation.
This series of guidance notes provides practical information for farmers and other landowners interested in investing in forestry. It is designed to help develop a first understanding of economic evaluation of afforestation projects. The six guidance notes of the series introduce the basic steps involved in the assessment of such projects to allow some preliminary due diligence when considering an investment in forestry. This does not replace a full assessment and advice by a chartered forest manager.
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Guidance
Wood Fibre Insulation – Specification Guidance
A building’s thermal performance is now as important an aspect of the building’s design and construction as its structure. Energy prices and climate change are often cited as the principal reasons for the increased energy and CO2 reduction standards required of our built environment. Less known is the fact that insulation can also play a major role in our health, safety, comfort and wellbeing.
When higher levels of thermal performance are required, this has a significant impact on building physics and other dynamic elements of a building’s performance.
Woodfibre insulation has a number of properties that enables it to provide a multifunctional role within the construction of a home. When specified and installed correctly, woodfibre provides protection against summertime overheating, enhanced acoustic performance and moisture control. The latter provides a building fabric with additional insurance against potential moisture problems that could otherwise undermine the integrity of the building and the health of the occupants.
Woodfibre is highly sustainable, locking up considerably more CO2 than is produced in manufacture. It can therefore play an essential part of a strategy for mitigating climate change.
This document provides information for specifiers and procurement specialists working on social housing projects. It is designed to help with the specification of wood fibre insulation within a social housing context. It provides performance criteria and indicates what needs to be considered when specifying woodfibre insulation.
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Wooden Windows-Specification guidance for timber windows
Windows provide an outlook on the world. They help set the tone and character for a building and the area in which it stands. Windows define natural lighting levels and thermal comfort essential for the wellbeing of residents. They offer sound protection and keep homes safe from intrusion. Windows are an essential part of the building fabric and as such contribute to a development’s overall energy performance.
Modern factory-finished timber windows have a better environmental performance than any other window material. They have a longer service life and lower whole life costs than uPVC windows. Wooden windows can be repaired and recoated throughout their lifetime and are the best option for achieving zero carbon buildings. They can be sourced from local manufacturers using home-grown timber and support economic recovery in Wales.
The multiple benefits wooden windows deliver over their life-span in terms of maintenance, durability, embodied carbon, and other social and environmental aspects make them excellent value for money.
This document provides information for specifiers and procurement specialists working on social housing projects. It is designed to help with the specification of low-carbon timber windows in a social housing context. It provides performance criteria and indicates what needs to be considered to achieve these in practice. Windows are an essential element of the building fabric and should not be discussed in isolation. They should be considered very early in the design process when deciding what build system to use.
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More and Better Home-Grown Timber—The financial case for existing landowners to plant woodland
From the TV presenters of Countryfile to the ever-escalating claims of political parties in the last UK elections, it seems everyone wants to plant more trees. Reasons vary from carbon capture, amenity, and biodiversity to production of usable timber, as do levels of ambition.
Amongst the most widely quoted targets, The Committee on Climate Change (CCC) say that UK needs 30K Ha of new woodland a year to 2050 as part of a suite of land use changes to meet the UKs commitment to become Zero Carbon. This afforestation is predicted to account for the largest share of the forecast £39 Bn cost, the majority of that being spent on land acquisition. This presumes that either we expand the public estate or encourage land acquisition by external investors.
Experience from solar and wind farms suggests that this will be expensive, slow, and unpopular with some existing landowners, particularly farmers. Nonetheless there is considerable pressure on farmers from Brexit and existing financial challenges particularly of upland farming are severe in Wales.
Based upon the above, our approach is to solve two problems together. Woodland creation for a range of benefits, providing the means for farm transformation, while avoiding the expense and social disruption of land acquisition.
Promising lower costs of delivered woodland and a wide range of associated benefits, the approach has much to recommend it, subject to its financial viability.
This report reviews opportunities and challenges through the lens of financial viability.
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Building Performance Evaluation Guide
New homes often fail to meet low-energy targets, and to satisfy residents with fundamental issues such as ease of use, summer comfort and energy costs. There is little Building Performance Evaluation (BPE) happening routinely on projects to close the performance gap. A step change is needed to transition to net zero carbon while making our homes comfortable, healthy and enjoyable.
This guidance is aimed at housing clients, and anyone interested in Building Performance Evaluation (BPE) who want to evaluate and improve the performance of homes.
Its purpose is to provide an introduction to applying BPE in practice on projects, with:
- Information for clients and project managers to gain an overview of the benefits of BPE, what the main BPE techniques can do, how to procure it, and the main activities to plan throughout a project from design to occupancy
- Guidance on the main BPE techniques available
- Tools for day-to-day use on projects, complemented by more detailed guidance, examples and references.
This guidance recommends a “core” BPE scope for clients and project teams wanting to understand and improve the performance of their homes. This provides a holistic look at performance, including people, the indoor environment, fabric performance, energy use and water use. It highlights how BPE techniques can work together, and the interactions between energy performance, people, and the indoor environment. It limits the involvement of experts and expensive equipment. Instead, the aim is to embed building performance throughout the project stages and empower project teams to deliver high performance.
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Carbon Storage Contract
The future building stock is the most effective and most immediate opportunity for carbon reduction and long-term carbon storage. By creating a new economic model for monetising the carbon reduction and storage capacity of the future building stock, the use and specification of low-carbon and carbon-storing materials could be incentivised.
Woodknowledge Wales have been working with providers of a voluntary carbon marketplace that pairs business buyers with building projects that demonstrate meaningful carbon reduction and carbon storage (30+ years). To demonstrate the viability and potential economic incentive, we have developed this exemplar carbon storage contract based on a recent social housing development in Llanbedr, Wales.
The goals are:
- To change the financial equitation for developers, architects, engineers, and builders to use more low-carbon and carbon storing building materials.
- To enable businesses to achieve their carbon reduction goals by purchasing reliable, verifiable, and asset-backed carbon reduction and storage contracts (CRSCs).
The building industry has adopted EN 15978 as the platinum standard for quantifying CO2 avoidance and CO2 storage which allows this mechanism to work internationally.
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For further information, please get in touch: info@woodknowledge.wales.
Capturing Carbon: Investing in Woodlands—An Options Analysis for Welsh Housing Associations
New woodland creation is one of the most cost-effective ways of reducing carbon emissions and offsetting our nation’s carbon footprint. The combination of an undersupply of our own timber in Wales and the ambitions of Wales and the Welsh Government to create new woodlands means that an organisation interested in creating new woodlands can play a pivoting role in combating climate change.
Woodlands have proven an attractive alternative asset for long-term investors, as they provide the opportunity to benefit from the value of a naturally growing commodity and the security of ownership of the underlying land. Woodlands have multiple benefits and these can be reaped in a way that makes a financial return for the investors.
A very new and interesting market is the trading of carbon. The sale of carbon credits allows landowners who create new woodlands to increase their financial returns by selling both timber and non-timber products. Government forecasts suggest these values could rise five-fold over a 40-year period which will have a significant impact on the profitability of a woodland creation project.
This document explores three investment options for Housing Associations
- Creating woodland by acquiring land.
- Creating new woodland through novel collaboration with the public sector e.g. NRW, Local Authorities etc.
- Acquiring existing woodland.
Timber Cladding—Specification Guidance for Social Housing
Timber cladding has become increasingly popular, mainly for its sustainability credentials and low environmental impact: It has a low carbon footprint as it requires less energy to produce than any other construction material and helps lock carbon into the building fabric. It is made from renewable material – wood – and can be reused, recycled or used as fuel at the end of its service life. Timber cladding is widely available from sustainably managed forests and can be sourced locally.
With correct detailing, proper installation and appropriate materials, timber cladding will provide a long lasting decorative and functional façade to any type of development, new build or existing stock.
This document provides information for specifiers and procurement specialists working on social housing projects. It is designed to help with the strategic selection of timber cladding as an external rainscreen in a social housing context. It provides performance criteria for specifying timber cladding and indicates what needs to be considered to achieve these in practice. The document highlights performance benefits across a range of intended design outcomes and is designed to help ensure that timber cladding is used appropriately. Timber cladding should not be viewed in isolation and should be considered very early on in the design process when specifying details and deciding on what build system to use.
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Making the Right Choices—A Guide to Improving the Build Quality of New Build Timber Frame Social Housing
Making the right decisions for the benefit of a building’s long term performance and user experience can be compromised by cost, lack of experience, and poor understanding of timber frame construction.
This guide aims to highlight some of the key points to consider along the pathway of designing, constructing and maintaining timber frame housing.
These points have been compiled reflecting on experience gained by delivering BMTRADA’s frameCHECK on-site quality consultancy service.
By helping the reader understand more about the consequences of some of the decisions to be made during construction.
This report has been compiled as part of the Home-Grown Homes Project, which looked into the way that timber is specified and used in construction, with its focus being on manufacturing. The aim of this document is to help all those involved with timber frame construction to deliver better performing and longer lasting homes.
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Embodied Carbon Guidance for Welsh Social Housing Developers, their design teams, contractors and suppliers
This guidance has been written for those wanting to both increase their knowledge of Embodied Carbon in the housing sector and to understand how to reduce it. The target audience encompasses key stakeholders within Welsh social housing organisations including development and asset managers, their design teams, contractors and suppliers.
Clear and authoritative guidance is provided on how to procure and undertake an Embodied Carbon assessment, what benchmarks can be set, tools that can be used and how Embodied Carbon can be reduced. Examples are provided to show how others have tackled Embodied Carbon within their organisations and projects, with a focus on housing. Where relevant, other guidance and useful information is signposted.
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Authors: This guidance has been produced for Woodknowledge Wales on behalf of the Home-Grown Homes project. The document was authored by Jane Anderson of ConstructionLCA Ltd together with Katherine Adams, The Alliance for Sustainable Building Products.
Publication date: December 2020
