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Edward Lowton
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Protection for pipes
21 August 2014
During holiday periods water may stagnate in pipework, making HVAC and plumbing systems a suitable breeding ground for hazardous bacteria. One solution, says Armacell, is to use its insulation materials to protect hot and cold water pipes against the temperature fluctuations that can occur in summer when the risk of legionella also rises.

When hot and cold pipes are laid in one duct or wall cavity, or wherever water is not circulated regularly, Armacell recommends using what is known as 100% insulation, i.e. an insulation thickness which roughly corresponds to the pipework outer diameter. On hot drinking water pipes this not only prevents legionella, but protects pipes against unnecessary energy losses. On cold water pipes the insulation provides protection against freezing, as well as providing protection against unwanted temperature rises.
Armacell insulation materials including AF/Armaflex Class O, Armaflex Tuffcoat and Tubolit protect pipes against temperature increases and decreases. The company says that due to their excellent technical properties, these insulation materials reliably prevent the temperature fluctuations in pipework and at the same time protect the installations against energy losses. The closed-cell material structure also prevents moisture ingress and corrosion of pipework.
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