| Key Data Set Information | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Location | ES | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Geographical representativeness description | This EPD has been elaborated seeking the greatest possible representativeness of the chestnut structural sawn timber sector in Spain. The inventory data have been obtained from practical case studies with real consumption data from factories, machinery and product catalogues and specialised bibliography. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Reference year | 2020 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name |
Base name
; Quantitative product or process properties
Chestnut laminated profile for external door frame use with surface treatment ; 534 kg/m3 at 10% humidity at the factory gate
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Use advice for data set | *All stages of the LCA have been considered, carrying out a cradle-to-grave analysis, including module D "Additional information beyond the life cycle of the building". * Biogenic carbon sequestration and emission has been calculated according to the UNE-EN 16485 standard and under the modularity principle of the UNE-EN 15804 standard. The UNE-EN 16449 standard was used to calculate the biogenic carbon content and its transformation into biogenic CO2. All the wood evaluated in this project comes from national forests and has sustainable forest management and chain of custody certification, so it is assumed to be biogenic carbon neutral. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technical purpose of product or process | - The use considered for the product type is as an external door frame, working in conditions of use class 2 and service class 2. - Defined product type: Chestnut wood laminated profile at 10±3% humidity with surface treatment (lasur) with dimensions 72 x 120 x 2300 mm. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification |
Class name
:
Hierarchy level
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General comment on data set | - Data quality: Data on energy and raw material consumption in the production of a functional unit of product type have been estimated from data provided by national manufacturers, studies based on real experiences and from the review of specialised literature. The data on additives have been extracted from the technical data sheets of commercial brands commonly used in the sector, as well as from data provided by national manufacturers of the typical product. In any case, the data selection and consumption estimations have been carried out seeking the highest representativeness of the chestnut structural sawn timber sector in Spain. The data used are assumed to be of "Very good" quality level due to their geographical, technical and temporal representativeness for the data collected, because they come from recognised and reliable sources from the study area, as well as the technological processes are referred to the final product. - Assignment: The allocation has been carried out following the UNE-EN 15804 standard whenever possible. The energy consumed by the machinery in the manufacturing process was obtained by means of estimates based on data on power demand, performance and hourly consumption from practical experience with real data, data from manufacturers of the typical product and specialised bibliography. Likewise, the energy consumption data for the raw material extraction and transport phases have been estimated on the basis of real machinery data obtained from catalogues and specialised bibliography that includes practical case studies. - Cut-off criteria: All raw material and energy consumptions have been taken into account except those related to the maintenance of machines and vehicles and the replacement of parts worn out by use. - Application of a product: Exterior door frame in humid environment and exterior use. - Reference quantity for the functional unit: 1 m3 of laminated profile of chestnut wood (Castanea sativa Mill.) for door frame use. - Quantified key properties: - Use class: 2 (UNE-EN 335). - Service class: 2 (UNE-EN 1995-1-1 and CTE DB-SEM). - Minimum performance characteristics to be maintained during the RSL: Resistance class and use and service class. - RSL >50 years | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Scenarios |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Copyright | Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Owner of data set | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Content declaration |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quantitative reference | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Reference flow(s) |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Time representativeness | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Data set valid until | 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Time representativeness description | Stable data over time for the selected standard installations. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technological representativeness | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technology description including background system | (A1) The exploitation and initial processing The exploitation model considered consists of felling with a chainsaw, gathering with a tracked tractor and skidding with a skidder. For the first processing, a standard sawmill with the following flow has been considered: cutting, debarking, main sawing with two-cutting band saw and trolley, splitting, edging, cross-cutting, drying and resizing. (A2) Transport of raw materials to the mill Transport from the forest to the sawmill is carried out by crane lorry, which also unloads the roundwood in the yard, so this operation is considered in stage A2. An average distance of 50 km between the forest and the factory and a truck with a capacity of 22 Tm has been considered. For the transport of chestnut sawn timber boards from the sawmill to the second transformation factory, a rigid vehicle with a capacity of 7 to 9 Tm and an average distance of 50 km between both transformation centres has been considered. The transport of lubricants and chemical products (lasur) from the warehouse to the sawmill is carried out by means of a van with a load capacity of 6.6 m3 and an average distance of 20 km is assumed, giving a total of 40 km for each product delivery. (A3) Manufacturing The inputs to the system are chestnut wood boards, lubricants and wood chemicals (glues, hardener and lasur) as raw materials and fuel and electricity as energy. A production line has been considered with the following flow: planing of slats, gluing and pressing to form the glued profile, planing to remove glue residues, sizing by sizing machine, milling and mitring to give the profile the required shape for use as a frame. Finally, manual surface treatment with lasur. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Flow diagram(s) or picture(s) |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Type of data set | EPD | ||||
| Subtype | generic dataset | ||||
| LCA methodology report | |||||
| Data sources, treatment and representativeness | |||||
| Documentation of data quality management | |||||
| Data source(s) used for this data set | |||||
| Completeness | |||||
| Validation | |||||
| |||||
| Compliance Declarations | |||||
| Compliance |
Compliance system name
|
Approval of overall compliance
|
Nomenclature compliance
|
Methodological compliance
|
Review compliance
|
Documentation compliance
|
Quality compliance
|
| Commissioner and goal | |
| Commissioner of data set | |
| Project | Project "G.O. Madera Construcción Sostenible". |
| Intended applications | To position timber construction products in the market for their technical and environmental values, promoting the value chain from the forest to the end consumer. Demonstrating through environmental information the excellence of wood as a construction material in relation to the values associated with sustainability. |
| Data generator | |
| Data set generator / modeller | |
| Data entry by | |
| Time stamp (last saved) | 2022-04-06T13:33:28.055+02:00 |
| Data set format(s) | |
| Publication and ownership | |
| UUID | 77c2f1a0-5bb5-4193-979a-b3a286d0a454 |
| Data set version | 00.00.076 |
| Registration authority | |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
| |
Indicators of life cycle