Process information
| Key Data Set Information | |
| Location | NO |
| Geographical representativeness description | Norway and Europe. |
| Reference year | 2025 |
| Name |
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| Technical purpose of product or process | Royal-impregnated timber is used outdoors as cladding on facades, terraces, roof boards, and structural wood. The oil sealing reduces swelling, moisture absorption, shrinking, and cracking of the wood. Marnar Royal is approved for rot resistance in durability class 1 according to NS-EN 350-1. Marnar Royal is pine that has been specially treated. The wood is first pressure-impregnated with a copper-based preservative, which ensures effective protection against rot. After impregnation, the wood is boiled in linseed oil under vacuum, with or without color pigments. This reduces moisture absorption, shrinkage, swelling, and cracking, as the wood receives an even and thorough sealing. This makes the product highly suitable for cladding, terraces, battens, and wooden roofs. Translation of table terms: Impregneringsmiddel = Impregnation agent Royalolje = Royal oil Trevike, tørr masse = Wood, dry mass Vann, i trevirke = Water in wood Pappemballasje = Cardboard packaging Plastemballasje = Plastic packaging Stålmballasje = Steel packaging |
| Classification |
Class name
:
Hierarchy level
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| General comment on data set | Data quality: Specific data for the product composition are provided by the manufacturer. The data represent the production of the declared product and were collected for EPD development in the year of study. Background data is based on EPDs according to EN 15804 and different LCA databases. The data quality of the raw materials in A1 is presented in the table below. Production data was collected from the production site in 2025, with 2024 as the reference year. Allocation: The allocation is made in accordance with the provisions of EN 15804. In forestry, economic allocation between sawn timber and solid wood is used. At sawmills, energy, water, waste, materials and internal transport are divided into sub-processes and then allocated according to income between the main and secondary products. Environmental impact and resource consumption for the primary production of recycled materials is allocated to the original product system. Note: Economic allocation has been used in production processes throughout the entire value chain that are considered co-producing (joint co-processes) according to EN 15804 (2021). Different interpretations of the regulations have led to varying methodologies being practiced across Europe. This life cycle assessment follows "school 1" as described by EPD-Norway (2024). Changes in results may occur upon final harmonization of the regulations. Cut-off criteria: All major raw materials and all the essential energy is included. The production processes for raw materials and energy flows with very small amounts (less than 1%) are not included. These cut-off criteria do not apply for hazardous materials and substances. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) |
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| Biogenic carbon content |
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| Time representativeness | |
| Data set valid until | 2030 |
| Time representativeness description | 2025-09-09 - 2030-09-09 |
| Technological representativeness | |
| Technology description including background system | The declared unit consists of timber with a dry weight of 435 kg/m³. At 16% wood moisture content, the timber has a density of 504.6 kg/m³. Marnar Bruk AS is a member of the Norsk Impregneringskontroll. Marnar Royal is classified as NTR A-B with penetration class NP5 according to NS-EN 351-1. Cladding is produced in accordance with SN/TS 3186 and decking boards in accordance with SN/TS 3188. |
Modelling and validation
| Subtype | specific dataset | ||||
| LCA methodology report | |||||
| Data sources, treatment and representativeness | |||||
| Documentation of data quality management | |||||
| Data source(s) used for this data set | |||||
| Completeness | |||||
| Validation | |||||
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| Compliance Declarations | |||||
| Compliance |
Compliance system name
EN 15804+A2
|
Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
|
Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
|
Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
Administrative information
| Data generator | |
| Data set generator / modeller |
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| Data entry by | |
| Time stamp (last saved) | 2025-10-20T10:57:35 |
| Data set format(s) | |
| Publication and ownership | |
| UUID | 3c1abeb7-0c04-4876-a3b8-74e38b4bdc21 |
| Date of last revision | 2025-09-04T14:18:48.7144905Z |
| Data set version | 00.03.000 |
| Registration authority | |
| Registration number | NEPD-12262-12306 |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
Environmental indicators
Indicators of life cycle