Download - 09 (ii) slate roofs
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Session 9 (II)Slate and other FlatTile Roofs
9.1. Introduction9.2. Waterproof performance9.3. Construction systems9.4. Construction processes9.5. Construction details9.6. Other materials9.7. Bibliography
A slate roof at La Casa de la Moneda. Segovia, Spain
Based on the original presentations by Prof. Julián García [email protected]
Translated by Luis M. Martín
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9.1. IntrodutionMaterialsSlate. Slate the finest grained foliated homogeneous metamorphic rock. Foliation does not correspond to the sedimentary layering, but to planes perpendicular to the direction of metamorphic compression.Not every slate is good enough for roof tiles. See the following links for spanish legislation and production processes
· CTE-DB-HS Apartados 2.4.2, 2.4.3 y 2.4.4 Cubiertas) y 2.3.2 y 2.3.3 (Fachadas). Puntos singulares (2.4.4.2): http://www.codigotecnico.org/web/recursos/documento s/dbhs/hs1/100.html· Normas UNE-EN 12326-1 (Especificaciones del producto), UNE-EN 12326-2 (Métodos de ensayo), UNE-EN 22190-3 EX (Sistemas de colocación)· NTE-QTP/1973. Cubiertas - Tejados de pizarra. http://www.boe.es/boe/dias/1973/12/29/pdfs/A25268 -25292.pdfSee production processes videos at: www.ehu.es/sem/seminario_pdf/SEMINARIO_SEM_2_18 3.pdf
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Production process.
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Commercial products. Standard forms and sizes for roof tile slates.
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Supplementary MaterialNails. Galvanized steel, between 50 mm. in length and 2.8 mm. in diameter and 30 mm. in length and 2.0 mm. in diameter.
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Supplementary MaterialHooks. Galvanized steel, 110 mm. long and 2.5 mm. diameter.
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Supplementary MaterialFurring, furring strips and battens.
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ToolsSlate hammer and shears
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Vocabulary
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9.2. Waterproof performanceRelationship capilarity-slope-overlay
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Capilarity with nail and hook. Case study – rectangular 200x300 slate.
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Spanish rainfall maps. Simplification in 3 regions:1. Interior of the country, at an altitude lower than 600 m.2. High zones between 600 and 1,200 m3. Zone of the Atlantic coast or above altitudes of 1,200 m
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Installation: hooks Installation: nail
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1.- Slate 200x3002.- Black plaster (4-5 cm.)3.- Support
9.3. Construction systemsTraditional standards
Slate on black plaster
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1.- Slate 200x3002.- Furring (every 10 cm)3.- Furring (every 60 cm)4.- Insulation5.- Support
Traditional standardsSlate on furring
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Contemporary standardsSlate on insulation panel
1.- Slate 200x3002.- Furring (every 10 cm)3.- Insulation panel4.- Support
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Contemporary standardsSlate on timber board with insulation panel
1.- Slate 200x3002.- Timber board3.- Furring (every 60 cm)4.- Insulation panel5.- Support
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Contemporary standardsSlate on timber board
1.- Slate 200x3002.- Timber board3.- Furring (every 60 cm)4.- Insulation5.- Vapour barrier6.- Support
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1.- Pizarra 200x3002.- Yeso negro (4-5 cm.)3.- Estructura
Contemporary standardsOther strategies
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9.4
. Con
stru
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npr
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9.5. Construction detailsSpanish standards
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International standards
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Images in this presentation by: Cluster da Pizarra de Galicia, Amado Ramos, Pays Couserans, Bretagne Couverture, The Paulin Slate and Cooper co. Y Miller Roofing. Illustrations by Schunk 2003 and prof. J. Garcia.
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A ceramic fish tile roof at Baker House. Trivandrum, India.
9.6. Other materialsCeramic tilesWooden shingles
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Wooden shingles at the roof of the church of Kristinestad, Finland.
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9.7. Bibliography
Deplazes, A (Ed.) (2009) Constructing Architecture. Materials, processes, structures. Birkhäuser, BaselKnaack, U.; Klein, T. (2009) The Future Envelope 1: A multidisciplinary approach. 2009. Research in Architectural Engineering SeriesKnaack, U.; Klein, T. (2009) The Future Envelope 2: Architecture - Climate – Skin. Research in Architectural Engineering Series López Piñero et al. La pizarra. Un material para construir. Asociación Gallega de Pizarristas. La coruña, 2003Menéndez Selgas, J. L. Arquitectura y tecnología en la colocación de pizarra en cubiertas. Peymar. Orense, 1993.Schunk, E. et al. (2003) Roof Construction Manual. Pitched Roofs. Birkhäuser, BaselSchunk, E. et al. (2003) Roof Construction Manual. Flat Roofs. Birkhäuser, Basel
Online referencesEnglish design guide: http://issuu.com/the_building_centre/docs/1033_pdf13Maintenance videos: http://www.youtube.com/watch?v=Pf8xdbtiCM0