Humidity problems _ interdry (thailand) co., ltd

A normal shipment consists of three distinct stages. Normal humidity level inside house The first stage includes the time from container filling until the container is loaded onto a ship. Normal relative humidity in house This includes road transportation and brief periods of storage.


Optimum humidity level in a home Daily cycles of temperature and humidity are common. Optimum humidity level in home For example, figure 2 includes temperature swings of 40° F [22°C] during the first stage of a shipment from Japan to The Netherlands.

The second stage is the actual time at sea or aboard a ship. Optimum humidity level in house This may or may not be the longest stage during the container’s journey. Perfect humidity level in house During this stage, daily cycles of temperature and humidity are usually very minor or completely non-existent. Proper home humidity level in winter Temperature changes are gradual, often occurring over days rather than hours. Proper house humidity level Occasionally, a single temperature/ humidity cycle occurs as the ship makes stops along the route, however extreme conditions are rare. Proper humidity level for a house Figure 3 includes a slow temperature rise and fall as a winter route takes the ship near the equator and then north to The Netherlands.

The final stage begins when the container is removed from the ship and continues until the recorder is removed during the freight unloading process. Proper humidity level for home This may include varying periods of time spent in customs, on trains, on trucks, and in storage. Proper humidity level for house Daily temperature and humidity cycles are common and may be extreme.

Some of the most interesting recordings are the extreme conditions. Proper humidity level in a house The highest recorded temperature occurred on July 25, 2005 during a shipment from Japan to Memphis. Proper humidity level in home The temperature reached 135° F [57° C] during the third stage of this shipment (figure 7).

The lowest recorded temperature occurred on January 15, 2005 also along the Japan to Memphis route (figure 8). Proper humidity level in home for summer The temperature dropped to -21° F [-29° C], which is slightly beyond the recorder’s published temperature range.

The shipment with the highest relative humidity occurred during a trip from Japan to Portland. Proper humidity level in home in winter The relative humidity was recorded at 96% on August 5, 2005 while the container was on land. Proper humidity level in house Figure 6 shows the detailed temperature and humidity profile. Proper humidity level in house canada The most extreme humidity conditions are seen during periods of large daily temperature changes. Proper humidity levels for a home In this example, as the temperature slowly drops from 88° F [31° C] to 67° F [19° C] over 9 days, the humidity increases to 88% before returning to 79%. Proper indoor humidity level in winter However, starting on August 4 as the temperature dropped from 121° F [49° C] to 68° F [20° C] over a 16 hour period, the relative humidity rose from 32% to 96%. Recommended humidity level for home in winter The corrugated boxes seem to absorb moisture fast enough to temper humidity during slow changes in temperature while at sea. Recommended humidity level for home uk However, rapid temperature changes seen on land seem to exceed the rate at which the corrugated boxes can absorb moisture.

InterDry (Thailand) Co., Ltd. Recommended humidity level in a house Formation of condensation in container due to temperature changes by sunlight Hygroscopic goods collected in an airtight container will lead to condensation in sunny weather.

During heating of the container walls and the internal air, the relative humidity drops. Recommended humidity level in home The container floor and the cargo will now dissipate condensation by which the absolute humidity in the air rises.

The water from the cargo comes from the upper layers of the load. Recommended humidity level in home canada This reduces the vapour pressure of the liquid inside the cargo which then migrates from the underlying layers of the cargo to the outer layers.

Figure 1: Warming of a container through radiation. Recommended humidity level in home during summer The left figure depicts the start of condensation. Recommended humidity level in home during winter The right figure, the condensation builds up for the coming days.

If the container warming has reached its peak, the temperature will drop with the result that the relative humidity increases. Recommended humidity level in home during winter canada Part of the moisture will condense on the cooler container walls when their temperature gets below the dew point of the internal air. Recommended humidity level in home in winter During the heating that occurs over the following days, the condensation of the vertical walls evaporate into the air so that the cargo needs to evaporate less condensation to achieve balance.

The condensation on the ceiling does not get into thermal contact with the circulating air, but will diffuse to lower drier air. Recommended humidity level in home summer This process is slower than the evaporation of condensation on the vertical walls by dry air. Recommended humidity level in home winter The condensation on the ceiling does not dry despite the heat. Recommended humidity level in house So day after day there is more and more because of moisture condensation from the cargo goods.

When the limit is reached, the condensation begins to drip. Recommended humidity level in house during winter The right drawing in Figure 1 shows that the majority of the condensation is formed on the ceiling . Recommended humidity levels for home summer This is important because condensation on the vertical walls do not directly cause damage but condensation from the ceiling drips into the goods.

The figure below shows the forming of condensation inside a container that was heated during the day. Relative humidity in a home The moment the temperature of the container wall goes below the dew point of air inside the container, condensation forms in the container.

Figure 2: The daily temperature variations in a container: The temperature, relative humidity and the dew point of air, the temperature of the cargo and the container walls.

Steel is currently the most used in the construction of containers despite its poor insulation properties. Relative humidity in the home uk This is because it is cheap in production and maintenance. Relative humidity levels in a home Another factor is that it is very suitable to absorb the mechanical forces acting on a container. Suggested humidity level in house The colour of the paint on the exterior of the container has an impact on the internal container temperature during sunlight. What are normal humidity levels in a home For a better picture of the impact on the container I will show you two colour charts reflecting the temperature changes in a white and a brown container during the course of one day.

The chart below shows the temperature in different places within a white container and outside each hour of the day. What can cause high humidity in a house The temperature varies between 40 ° C near the roof and 28 ° C near the floor with an outside temperature of about 28 ° C at noon. What causes high humidity levels in a house During the night, the temperature of the air in the container is about 12 ° C at an outside temperature of 15 ° C.

A similar study was done with a container with a brown color. What humidity level should my house be in summer There were much higher temperature differences measured. What is a comfortable humidity level in a home A measurement at midday found a temperature of about 50 ° C near the roof and 35 ° C near the container floor with an outside temperature of 25 ° C.

During the night the air inside and outside the container had similar temperatures, fluctuating around 15 ° C. What is a comfortable humidity level in a house These measurements are in the chart below

The colour of a container indeed affects the internal temperature. What is a comfortable humidity level in your home Previous charts showed that a dark container has a temperature increase of about 10 ° C more with the same outdoor temperature (27 to 28 ° C). What is a comfortable humidity level inside a house The relative humidity can change from 80% for example to about 50% which can cause a great hygroscopic imbalance. What is a comfortable indoor humidity level It also comes with a larger cooling. What is a good home humidity level All the humidity extracted from the goods into the container internal air to balance the hygroscopic imbalance due to the temperature rise in the afternoon will condensate during the drastic drop in temperature in the evening.

The figure below shows an estimate of the occurrence of certain container colour. What is a good house humidity level This estimate resulted from the assumption that the size of the container capacity of 10 major container liners is approximately equivalent to the size of the total number of containers that are transported. What is a good humidity level for a home And that the container liners only transport using their own containers. What is a good humidity level for my house Even though bright colours like white, gray and yellow are popular, darker colours like dark blue and even green are also relatively common.

Excess humidity at home can cause the appearance of mould, mildew, fungus and all kinds of nastiness that endangers your and your family’s health.

In order to solve the humidity problems in a room, bathroom, store room, etc. What is a good humidity level in a home first of all you need to find out the cause of the excess humidity:

If the humidity comes from outside, caused by a leak or by defective insulation, our products will help to reduce the level of ambient humidity, but will not solve the problem for good. What is a good humidity level in a house The best thing to do is to consult an insulation specialist so as to solve the root of the problem.

If the problem is due to excess ambient humidity in the room because of poor ventilation or condensation, our product can solve your problems. What is a good humidity level in your home How does it work?

Put the product anywhere in the room and leave it to work. What is a good humidity level in your house The desiccant will activate automatically, absorbing the excess humidity. What is a good humidity level indoors Once the desiccant has stopped absorbing, put in a refill. What is a good humidity level inside a house How long the product lasts depends on the temperature and level of humidity in the room. What is a good humidity level inside during summer It works without electricity or batteries.

Nordic Power Desiccant regulates the level of ambient humidity to bring it down to the recommended optimum level of 45-50%, without drying out the atmosphere, absorbing only the excess humidity. What is a good humidity level inside during winter Is it toxic? Can I use it in a child’s bedroom?

All Nordic products are non-toxic. What is a good humidity level outside They can be used without any problem in any room in the house, whether inside a wardrobe, in bathrooms or in store rooms – even in bedrooms. What is a good indoor humidity level in summer They are also very popular for use on a boat or yacht.

The desiccant contained in the product is calcium chloride, hygroscopic salts which are non-toxic and environmentally friendly. What is a good indoor humidity level in the winter Finding and Identifying Basement Mold

Basement mould is a term refers to the types of fungus that grow in basements under certain conditions. What is a good inside humidity level Basement mould is harmless in small quantities, but as it grow, it becomes more and more of a health hazard. What is a good level of humidity in a house Some will cause certain types of allergic reactions while others are outright poisonous. What is a good level of humidity indoors If left untreated, the basement mould will keep growing, eventually spreading through the entire building. What is a healthy humidity level for a home This is why you must find the mold before the problem gets out of hand. What is a healthy humidity level in a home Once you find it, you will need to be able to identify it—otherwise, you won’t be able to figure out how to get rid of it. What is a healthy humidity level in a house Finding Basement Mould

One of the easiest ways to identify the mould is by it’s stench. What is a healthy humidity level in your home However, this is only true for some types of basement mould, others may not start to smell until their growth reaches a certain stage. What is a healthy humidity level indoors That is why you may want to take a more proactive approach and check the spots where the mould is most likely to emerge. What is a healthy indoor humidity level That way, you will have a better chance of spotting it while it is still at manageable size.

Basement mould needs a wet environment in order to grow. What is a healthy level of humidity in a house It will grow near the pipes and along the walls. What is a high humidity level in a house The mould feeds on common household materials such as plywood, drywall, furring strips and carpet padding, as well as dust and cellulose in carpets themselves. What is a high humidity level outside Try to check any parts of the basement that are hospitable to mould at least once every week. What is a normal humidity level for inside a house Be sure to bring a flashlight with you—you may not be able to get adequate illumination without it.

If your basement suffers any sort of flooding, the walls will become infested with mould spores, which will remain dormant until they come in contact with water. What is a normal humidity level in a home The spores can remain dormant for a long time. What is a normal humidity level in a house Just because the mould didn’t develop after the flood doesn’t mean it won’t become an issue several years down the line. What is a normal humidity level inside a home Mould Safety

If you find a patch of mould, try not to inhale too deeply and don’t touch the mould with any part of your body. What is a normal humidity level outside If it gets on your clothing or your tools, wash it immediately. What is a safe humidity level in a home You can identify the mould by sight, so there is no reason why you should be touching the mould in the first place. What is an acceptable humidity level in a home Identifying Basement Moulds

Basement mould can be identified based on a number of factors. What is an acceptable level of humidity in a home First, there is colour. What is best indoor humidity level Basement mould comes in a variety of colours that range from light gray to black. What is good humidity level in home They may have green, blue and/or brown tinges. What is good indoor humidity levels If the mould is closer to black, it is either the Stachybotrysor Cladosporiummolds. What is healthy indoor humidity level If it’s closer to light grey, it is either Aspergillus or Fusarium moulds.

To figure out which type of dark mould and you have, look at the texture. What is humidity level in a house If the basement mould looks slimy, it is probably Strachybotrys. What is ideal home humidity level Otherwise, it’s Cladosporium.

To figure out what kind of light coloured mould you have, look at the growth pattern. What is ideal humidity in a house If the mold grows in disjoint circular patches, it is most likely to be Aspergillus. What is ideal indoor humidity level Otherwise, it’s Fusarium. What is ideal relative humidity indoors The Next Step

If possible, try to get the mould tested in a lab. What is normal humidity in a home While the factors described above are usually fairly good indicators, only the professional analysis will be able to tell for sure. What is normal humidity inside a home If the mold patches are small, you may be able to remove it yourself. What is normal humidity level in a house However, if the patches are fairly large, you will need professional help.