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Why is an airtightness membrane necessary?

An airtightness membrane, also known as an air barrier, is a material used in building construction to prevent air from leaking in or out of

The importance of Airtightness

Air leakage is a common problem in many homes and buildings, causing energy waste and compromising indoor air quality. Airtightness is a crucial aspect of

Free Training Courses

The nature of construction is that regulations are always changing and so are techniques and products. Red Letter try to keep on top of latest

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Located in Longford, Red Letter supply specialty energy products to the construction industry

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