15-12-2018, 05:16 PM
Bruce,
Water vapour in the atmosphere is similar to barometric pressure, unless separated from the general air mass, it will behave much as the remainder of the air mass, mixing freely. In other words it must be prevented from mixing otherwise it will be the same humidity. The gaps around your door would be like having a bath with gaps between the sides and bottom, although in this case humid air will leak into your 'drier' garage. First seal the gaps and then lower the water vapour level, otherwise as you say Wales will become dry, much like it used to on a Sunday.
Despite this disadvantage, dehumidification is a much better and far less costly way to conserve materials, such as those found in the average prewar car. I commend it to the reader. I sold refrigerant dehums to the Aston Martin Club museum, housed in a wooden barn, which was made as airtight as possible. It significantly reduced the humidity level and slowed the decline in condition of steel, aluminium and leather.
Water vapour in the atmosphere is similar to barometric pressure, unless separated from the general air mass, it will behave much as the remainder of the air mass, mixing freely. In other words it must be prevented from mixing otherwise it will be the same humidity. The gaps around your door would be like having a bath with gaps between the sides and bottom, although in this case humid air will leak into your 'drier' garage. First seal the gaps and then lower the water vapour level, otherwise as you say Wales will become dry, much like it used to on a Sunday.
Despite this disadvantage, dehumidification is a much better and far less costly way to conserve materials, such as those found in the average prewar car. I commend it to the reader. I sold refrigerant dehums to the Aston Martin Club museum, housed in a wooden barn, which was made as airtight as possible. It significantly reduced the humidity level and slowed the decline in condition of steel, aluminium and leather.