Onduline
Roofing and waterproofing · Abanto y Ciérvana, Bizkaia, Spain
About Onduline
Onduline is the manufacturer of waterproofing and insulation systems for pitched roofs, with a plant in Gallarta, in the municipality of Abanto y Ciérvana. It is the world's leading manufacturer, and Spain's only one, of corrugated bituminous sheets, and its Bajo Teja system waterproofs roofs finished in tile, slate or stone, alongside sandwich panels and plastic sheets for roofs and facades.
On a pitched roof, the waterproofing beneath the tile matters as much as the visible tile: if the sheet or membrane fails, leaks appear even when the tile is intact. It is therefore worth checking falls, under-roof ventilation, junctions with chimneys and valleys, and the structure's condition before re-roofing.
To refurbish a roof, document leaks, condensation areas and the current tile type, and request a solution combining waterproofing, insulation and finish. Ask about the system guarantee, ridge and flashing accessories, and the technical assistance available during installation.
On a pitched roof, the waterproofing beneath the tile matters as much as the visible tile: if the sheet or membrane fails, leaks appear even when the tile is intact. It is therefore worth checking falls, under-roof ventilation, junctions with chimneys and valleys, and the structure's condition before re-roofing.
To refurbish a roof, document leaks, condensation areas and the current tile type, and request a solution combining waterproofing, insulation and finish. Ask about the system guarantee, ridge and flashing accessories, and the technical assistance available during installation.