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Prevent Mold and Mildew Growth With In-Home Dehumidifiers

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During rainy days, various types of molds and mildews can sprout up from everywhere. Even the cleanest household is not exempted from this. Even if you clean up your house everyday and spray on an air freshener, the moldy air still won't escape your house completely. It will always come back after the air freshener wears off.

There is a solution for that  mold and mildew problem. With house dehumidifiers, humidity level in the house can be put into 45%, a level that does not only make us feel more comfortable and less fatigued, but also prevents molds and mildew from growing. Home dehumidifiers come in both portable and wall mounted varieties though the wall mounted dehumidifiers are usually more expensive.

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Before it rains, water vapor accumulates in the air, increasing the humidity to almost 100%. When the relative humidity reaches 100% or nearly 100%, it is only then that it rains. Also, it is only during raining that humidity level lowers down; but when the rain stops and the atmosphere starts to heat up, the humidity level will rise again, gaining more water vapor in the air, and thus the growth of molds and mildews during rainy days.

House dehumidifiers lower down the humidity level during rainy season when needed. They collect water vapor from the air, dry up the air, and release a steam of water vapor to regulate the humidity to 45%. House dehumidifiers can also equalize humidity level during winter nights. Low humidity during winter is the reason behind chapped skin and cracked lips because of moisture loss in the air.

House dehumidifiers come in various types. Mechanical/refrigerant and desiccant humidifiers are the most popular choice for most households. These models may be gas fired or electrically activated. They can be installed near the furnace or in ducts. There are also portable home dehumidifiers available that you can carry around the house.


Dehumidifiers for timber storage

DehumidifiedwoodTimber in its final drying stage before making commences.

The way we store and treat our timber is critical to making good quality furniture that will serve our customers well over time and it's important to ensure our timber is well dried and stable before we start our construction.

We have a tried and tested system that works for us here at the School and we have very few timber movement issues after construction of the final piece.

The process

HumidistatThe humidistat shows the store room at about 11% moisture level.

The first stage of the process is careful timber selection and buying from reliable sources, ensuring the timber is either well air dried, kiln dried or best of all, a combination of both.

The majority of our timber has been kiln dried to about 13% moisture content, but is then often stored in outside drying sheds; the timber will tend to take in moisture again, to match the local humidity conditions.

Remember, no matter where timber is stored, it will always reach equilibrium with its surroundings over time.

Dehumidifying woodFresh kiln-dried timber piled up on our timber racks.

Once the fresh timber enters our workshop we put it to rest in our humidity controlled internal storeroom. This racked out room has a plumbed-in dehumidifier and a humidity Stat to constantly measure the moisture levels within the storage room.

The fresh timber is stacked on a cantilever scaffolding rack with sticks between each piece of timber to allow air movement. The thicker the stick the more airflow between the boards and the quicker final conditioning will occur.

The boards are entering the storeroom at maybe 15-18% moisture content but will normally reach the same level as our store area in a matter of a couple of months.

The storeroom is normally constant at around 10% moisture level; 25mm thick boards should reach this level within a couple of weeks, a little longer for bigger sections.

Dehumidifier for wood storageOur plumbed-in dehumidifier drying the timber.

If possible we pre-cut our timber to rough sawn sizes before entering the drying room as this helps to speed up this drying process.

After the boards have been acclimatising to these internal conditions we will bring them closer to their finished size and re-stack them within our warmer workshop before final working the wood to size.

We find this gives us much better moisture control over the end result and far fewer long-term problems with the furniture we craft.