One of the mysteries of the English language finally explained.
- ‘Insecticidal boric acid is a low toxicity insecticide and fire retarder used in other insulation materials.’
- ‘Also, since air retarders and vapor diffusion retarders serve different functions and have distinct characteristics, it may be more practical to install them as separate systems.’
- ‘Contractors are also encouraged to use evaporation retarders when weather conditions could cause excessive water evaporation from the slab.’
- ‘The drivers are taught to use engine retarders instead of brakes, and if they have to use the brakes, to tap them lightly.’
- ‘A vapor retarder in this location would reduce the amount of moisture that diffuses into the wall cavity.’
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