Process Data set: Límtré (Glued laminated timber/GLT/Glulam) (en)

Process Data set: Límtré (Glued laminated timber/GLT/Glulam) (en) en

Process information

Key Data Set Information
Location	IS
Geographical representativeness description	Iceland
Reference year	2025
Name	Límtré (Glued laminated timber/GLT/Glulam)
Use advice for data set	Cradle-to-gate plus options C1-C4, D
Technical purpose of product or process	Glued laminated timber (GLT) is used for structural purposes like load bearing beams and pillars. The declared product is made of spruce and has an average moisture content of 12%. The product can be ordered with or without a galvanized steel nail plate. The product is constructed to match individual customer specifications and consists of planed spruce, a melamine urea resin adhesive, and can be joined with a galvanized steel nail plate.
Classification	Class name : Hierarchy level EPDNorge: Construction / Solid wood products
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. 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. Economic allocation was applied to account for the various co-products originating from mill activities. The economic value of each co-product was used to allocate energy flows between products. 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	Límtré Vírnet
Quantitative reference
Reference flow(s)	Límtré (Glued laminated timber/GLT/Glulam) - 1.0 * 1.0 m3 (Volume)
Biogenic carbon content	Carbon content (biogenic): 197.541409146901 kg Carbon content (biogenic) - packaging: 0.0 kg
Time representativeness
Data set valid until	2030
Time representativeness description	2025-03-27 - 2030-03-27
Publication date	2025-03-27
Technological representativeness
Technology description including background system	This product is produced according to EN 14080:2013 and is delivered according to individual customer specifications.

Modelling and validation

Subtype

average dataset

LCA methodology report

NPCR 015:2021 Part B for wood and wood-based products for use in construction

Data sources, treatment and representativeness

Documentation of data quality management

NPCR 015:2021 Part B for wood and wood-based products for use in construction

Data source(s) used for this data set

ecoinvent database (all versions)

Original EPDs

L--mtr----Glued-laminated-timber-GLT-Glulam-.pdf

Completeness

Validation

Type of review
Independent external review

Reviewer name and institution
Alexander Borg

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

ISO 14025

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

ISO 21930

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	LCA.no AS
Data entry by
Time stamp (last saved)	2026-07-31T19:01:29
Data set format(s)	ILCD format EPD Data Format Extensions v1.2
Publication and ownership
UUID	cec95b1d-a938-40cb-9006-7d5530b0e5b7
Date of last revision	2025-03-26T13:20:13.8466817Z
Data set version	00.03.001
Registration authority	EPD Norway
Registration number	NEPD-9472-9140
Owner of data set	Límtré Vírnet
Copyright	Yes
License type	Free of charge for all users and uses
Access and use restrictions	None
Publisher	EPD Norway

Environmental indicators

Indicators of life cycle

Indicator	Direction	Unit	Production A1-A3	Transport A4	Installation A5	De-construction C1	Transport C2	Waste processing C3	Recycling Potential D
Use of renewable primary energy (PERE)	Input	MJ	1.9E+3	4.426	0.1497	0.01783	1.418	13.87	-9101
Use of renewable primary energy resources used as raw materials (PERM)	Input	MJ	8.06E+3	0	0	0	0	-8.06E+3	0
Total use of renewable primary energy resource (PERT)	Input	MJ	9.96E+3	4.426	0.1497	0.01783	1.418	-8046	-9101
Use of non renewable primary energy (PENRE)	Input	MJ	1636	309.2	1.59	2.551	96.98	82.6	-428.3
Use of non renewable primary energy resources used as raw materials (PENRM)	Input	MJ	19.74	0	-19.74	0	0	0	-35.25
Total use of non renewable primary energy resource (PENRT)	Input	MJ	1656	309.2	-18.15	2.551	96.98	82.6	-463.5
Use of secondary material (SM)	Input	kg	0.03315	0	0	0.001909	0	0	-0.212
Use of renewable secondary fuels (RSF)	Input	MJ	1.619	0.1584	0.0003535	0.0005783	0.05048	1.178	-0.1477
Use of non renewable secondary fuels (NRSF)	Input	MJ	1.936	0.5662	0.003161	-0.006652	0.1783	0.1662	1.474
Use of net fresh water (FW)	Input	m3	6.023	0.03307	0.0007467	0.0001452	0.01113	0.06901	-0.1308
Hazardous waste disposed (HWD)	Output	kg	0.4157	0.01595	0.0000603	0.00009711	0.005283	0.0108	-0.08085
Non hazardous waste dispose (NHWD)	Output	kg	33.06	15.04	0.01931	0.004122	5.979	0.4492	-14.09
Radioactive waste disposed (RWD)	Output	kg	0.009763	0.002106	0.00001098	0.0000176	0.0006587	0.0005818	-0.002095
Components for re-use (CRU)	Output	kg	0	0	0	0	0	0	0
Materials for recycling (MFR)	Output	kg	4.224	0	1.69	0	0	2.98	0
Materials for energy recovery (MER)	Output	kg	0	0	0	0	0	0	0
Exported electrical energy (EEE)	Output	MJ	0	0	0	0	0	0	0
Exported thermal energy (EET)	Output	MJ	0	0	0	0	0	0	0

Core environmental impact indicators

Indicator	Unit	Production A1-A3	Transport A4	Installation A5	De-construction C1	Transport C2	Waste processing C3	Recycling Potential D
Abiotic depletion potential - fossil resources (ADPF)	MJ	1715	309.2	1.59	2.551	96.97	82.47	-460.1
Abiotic depletion potential - non-fossil resources (ADPE)	kg Sb-eqv.	0.001604	0.0005649	8.346E-7	0.000001295	0.0001689	0.00001572	-0.0004189
Acidification potential, Accumulated Exceedance (AP)	mol H+ eqv.	0.9356	0.05877	0.001034	0.0008598	0.0196	0.02252	-0.1679
Global Warming Potential - biogenic (GWP-biogenic)	kg CO2 eqv.	-723.4	0.008464	0.0001918	0.00004198	0.002752	724.3	-0.07256
Global Warming Potential - fossil fuels (GWP-fossil)	kg CO2 eqv.	105.7	20.45	0.1135	0.1794	6.253	4.078	-29.07
Global Warming Potential - total (GWP-total)	kg CO2 eqv.	-614.8	20.47	0.1146	0.1795	6.258	728.4	-29.42
Global Warming Potential - land use and land use change (GWP-luluc)	kg CO2 eqv.	3.03	0.007279	0.0008721	0.00003985	0.002302	0.009158	-0.2831
Global warming potential except emissions and uptake of biogenic carbon (GWP-IOBC/GHG)	kg CO2 eqv.	109.3	20.47	0.1145	0.1795	6.258	4.113	-30.04
Eutrophication potential - freshwater (EP-freshwater)	kg P eqv.	0.003907	0.0001634	5.503E-7	9.619E-7	0.0000529	0.00042	-0.002201
Eutrophication potential - marine (EP-marine)	kg N eqv.	0.257	0.01163	0.0004405	0.0003057	0.004028	0.003013	-0.05553
Eutrophication potential - terrestrial (EP-terrestrial)	mol N eqv.	3.053	0.1301	0.004837	0.003365	0.04505	0.03692	-0.5981
Photochemical Ozone Creation Potential (POCP)	kg NMVOC eqv.	0.7894	0.04983	0.00134	0.001003	0.01718	0.009617	-0.2203
Depletion potential of the stratospheric ozone layer (ODP)	kg CFC 11 eqv.	0.00001877	0.000004632	2.469E-8	3.966E-8	0.000001434	3.413E-7	-0.00000466
Water (user) deprivation potential (WDP)	m3 world eqv.	2.392E+4	299.1	8.149	0.8627	93.92	1.21E+3	-198.2

Additional environmental impact indicators

Indicator	Unit	Production A1-A3	Transport A4	Installation A5	De-construction C1	Transport C2	Waste processing C3	Disposal C4	Recycling Potential D
¹This impact category deals mainly with the eventual impact of low dose ionizing radiation on human health of the nuclear fuel cycle. It does not consider effects due to possible nuclear accidents, occupational exposure nor due to radioactive waste disposal in underground facilities. Potential ionizing radiation from the soil, from radon and from some construction materials is also not measured by this indicator.
²The results of this environmental impact indicator shall be used with care as the uncertainties on these results are high or as there is limited experiences with the indicator.
Potential Human exposure efficiency relative to U235 (IRP)¹	kBq U235 eqv.	8.301	1.352	0.006839	0.01091	0.4238	0.71	0	-1.403
Potential incidence of disease due to PM emissions (PM)²	disease incidence	0.000008276	0.000001252	2.634E-8	2.809E-9	4.285E-7	6.853E-8	0	-0.000001645
Potential Soil quality index (SQP)²	unitless	1883	216.3	0.3928	0.3196	82.66	16.17	0	-4.252E+4
Potential Comparative Toxic Unit for humans - non-cancer effects (HTP-nc)²	CTUh	0.000001805	2.504E-7	9.73E-10	1.679E-9	9.522E-8	5.175E-8	0	-2.375E-7
Potential Comparative Toxic Unit for humans - cancer effects (HTP-c)²	CTUh	2.638E-7	0	3.6E-11	7.8E-11	0	2.331E-9	0	-2.256E-8
Potential Comparative Toxic Unit for ecosystems (ETP-fw)²	CTUe	2799	229.2	1.084	1.591	72.97	51.76	0	-448.7