How to do whole building using openlca
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All gypsum board was assumed to be 5/8” thick regular gypsum board in commercial buildings and 1/2” thick regular gypsum board in residential buildings, taped and finished with two coats of latex paint.All concrete masonry was assumed to contain 0% flyash.All cast-in-place concrete was assumed to contain 25% flyash in place of Portland cement although this is not necessarily typical, it was considered more appropriate to use an environmentally beneficial formulation.All concrete (except floor topping) was assumed to be 4000 psi (30 MPa) in commercial buildings and 3000 psi (20MPa) in residential buildings.Viewable curtainwall was assumed to be two panes of 6 mm glazing. All window glazing was assumed to be double-glazing with low-E silver coating and argon filled cavity.
#How to do whole building using openlca windows
All windows were assumed to be inoperable in commercial buildings and operable in residential buildings.Commercial buildings’ exterior walls were assumed to have 40% windows by area and residential 20% windows by area.The life cycle stages considered in the LCA results include resource extraction, resource transportation, building product manufacturing and component manufacturing (components incorporate two or more building products), transportation from manufacturing plant to building site by various modes, on-site construction, maintenance and replacement of components over a 60-year period, end of life (demolition) effects for those materials replaced over the 60-year life and transportation to landfill of those materials currently landfilled.
#How to do whole building using openlca code
An assumption was made that all assemblies would be installed in either low- or high-rise office or residential buildings using components and loadings typical for central areas of the United States but with differentiations between locations for the purposes of properly defining assemblies in terms of thermal performance and related code requirements.For the purposes of the commercial EcoCalculator, we assumed an “owner occupied office” building type, either high-rise or low-rise, with a 60-year life, and for the residential EcoCalculator we assumed a “single family residential” building type with a 60-year life. This affects the maintenance schedule and repair/replacement of certain building assemblies. The Impact Estimator requires a definition of building type, whether rental or owner occupied and expected life.Users wishing to explore other supported options can do so using the Impact Estimator. These essential underlying assumptions are described below. However, the Impact Estimator offers additional options for many of the assemblies and the basic approach to developing EcoCalculator results was to select assumptions that would be fair in terms of assembly comparisons. These are only by exception to be used within the Bewertungssystem Nachhaltiges Bauen für Bundesgebäude (BNB).The Athena EcoCalculator results reflect the assumptions inherent within the Athena Impact Estimator for Buildings. Besides, datasets based on ecoinvent background data are provided in 'additional datasets'. Before approval, the EPD programmes and data are checked for conformity with ÖKOBAUDAT requirements (→ Guidance for data providers).ĭatasets in ÖKOBAUDAT are based on the background database GaBi. EPD datasets in ÖKOBAUDAT must fulfill further requirements beyond the scope of EN 15804 (see Principles for acceptance of LCA data in ÖKOBAUDAT). ÖKOBAUDAT offers both generic datasets and specific environmental declaration datasets from diverse companies or associations. Datasets are provided for the relevant building products, in compliance with DIN EN 15804. The constantly updated ÖKOBAUDAT (current version 2021-II from ) is the mandatory database for the Assessment System for Sustainable Building (Bewertungssystem Nachhaltiges Bauen, BNB).
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