Building/construction wall membranes

Already many lightweight membrane structures are in existence, and an increasing number of them are planned for the future, e.g. football stadium roofs. For such structures the combination of materials produces widely differing properties. Some projects are very cost-effective, while others are used for more expensive building constructions. Some constructions are of a temporary nature, some are erected at a fixed location some are required to be portable, while others may remain in place for decades. Textile roofs or walls may be open or closed according to the time of day or the position of the sun others stay fixed in one position. Some materials are required to have high translucency others may be designed for maximum insulation. 

In designing concrete tanks, it is common practice to carry the reinforced asphalt membrane up the walls and over the tops of the concrete, and to continue the brick lining in the same manner-over the top of the wall. Often the membrane is carried down the outside of the tank, the outside is veneered with brick as well, and the membrane and brick continued onto the surrounding floor. If such a system is properly designed and constructed, the life expectancy of the system will be a long one. This is a closed system, with no discontinuities in membrane, and except for mechanical injury there is no way corrosives can enter the building structure. 

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