attic venting one job with many benefits - best air purifier for mold and mildew

Hey, time traveler!
This article is published in 19/10/2003 (5705 days ago)
Therefore, the information in it may no longer be up to date.
Suppose you can solve all of these tasks with one improvement? Well, you can.
The answer is ventilation in the attic. A well-
A ventilated loft helps prevent problems related to overheating and moisture build-up.
This requires constant air circulation in the attic to exchange overheating and moisture
Breathe fresh and cool air from outside.
Proper attic ventilation can protect the home from damage and costly consequences. For example:—
Heat and moisture build up, causing premature deterioration of roof structures, wooden tiles and paint.
In fact, many wood tile manufacturers need proper ventilation to verify their wood tile warranty. —
Too much heat can radiate to the living area to make the room uncomfortable
The air conditioning has been working longer and harder, putting utility bills into orbit. —
Ventilation helps reduce the accumulation of moisture that can lead to mold and mildew. —
Attic with insufficient ventilation (
Combined with attic with poor insulation)
In winter is the main cause of damage to the ice dam, so the roof leaks.
In recent years, in today's more energy sources, the incidence of moisture damage in the attic has increased.
Efficient, enclosed residence.
A typical household produces two to four gallons of water vapor per day on average.
In the winter, the steam is attracted by the cooler air in the attic, where it quickly condenses.
Condensation drops onto the attic insulation to reduce its effectiveness.
Excessive moisture will promote the growth of mold and mildew, and deteriorate the structure of the wooden attic.
What can you do to stay healthy
Ventilation loft?
Understand your choices first.
First, there are two basic types of ventilation systems
Passive and active.
The passive system uses physical principles to generate natural airflow.
In contrast, active systems use mechanical devices to move air.
An example of a passive system is a combination of roof vents, such as vents located at the end of the gable, Eaves or cable sheds, high on the roof or on the roof ridge.
Static ventilation ports are still needed for active systems (
Eave or soffit vents or gable vents)
, But use a mechanical exhaust fan (an attic fan)
Breathe cold air into the attic and drain it through the roof or through the vent of the gable (
Depending on the style of the roof and the type of loft fan used).
In order to maximize the volume and influence of the airflow through the ventilation system, the intake and exhaust ventilation must be balanced.
This is high-low balance.
With this basic principle in mind, a reasonable attic ventilation system is designed.
Over the years, passive is considered to be one of the two ways in which attic ventilation is poor.
You can install an electric loft fan if you want good ventilation.
Although at the appropriate height, this may still be true
Low balance cannot be achieved (
For example, same as the hip roof)
Otherwise, the passive attic ventilation system is usually a better choice.
The passive system has no moving parts, little or no maintenance, no noise, no energy to operate and produce better results.
One of the most effective components of the passive ventilation system is the ridge vent.
Ridge vents are installed along the entire ridge of the roof to maximize the net free area and work with soffit
Eave vents, which provide uniform airflow throughout the underside of the roof deck.
It is this phenomenon that prevents both ice dams and premature deterioration of some roofing materials.
Research has proved that this model is the most effective.
In addition, ridge vents are more attractive than other types of vents because they blend with the roof.
As part of the reinstallation, Ridge ventilation system can be installed during the new building
The roof works or is converted into an existing roof system.
The renovation will require the removal of the existing ridge cover and the trimming of the continuous part of the roof sheath to improve the air flow.
The roof vents can have a full roof cover, so there is no need to replace the cover, or can be sandwiched between the roof cover and the roof cover.
Although there are some slight differences in performance, it is usually aesthetic to choose one than the other.
Other ventilation methods (
Turbine, loft fan, gable vent and multi-silent vent)
Disturbing the dynamics of the Ridge-
Therefore, a combination of soffit vents must be removed or sealed.
Since the gable vents are usually building elements, it is better to seal them from the inside with plywood, so the building integrity of the home is maintained and side plate patches are not required.
Over the years, a typical "builder"
The "basic" ventilation system consists of a bottom and a gable vent.
These systems are marginal at best, as the gable vents work independently and provide limited airflow on the underside of the roof.
Another traditional way of ventilation in the attic is the turbine vent.
While better than some methods, the turbine vents provide limited air movement at all wind speeds.
They are also often covered in order to prevent the weather from infiltrating.
Ironically, the coverage of the turbine is contrary to its purpose and hinders ventilation.
There are other types of roof vents that provide a small, limited area of air flow that prevents airflow from moving along the entire underside of the roof deck.
Power loft ventilation plant-
Wired, adjustable, automatic thermostat that monitors expensive heat build-up in the attic.
When the preset temperature is reached, the fan will turn on and the fan will stop once the attic reaches the cooler preset temperature.
Power loft fans can be installed inside the roof or gable vents.
The size and quantity required for the attic fan is determined by the size of the attic.
Please consider the following when considering an electric loft fan :-
For proper attic ventilation, the home ventilation Institute recommends that air exchange be provided at least 10 times per hour.
To determine the fan capacity required to provide this minimum airflow, use the following formula: loft square foot x 0. 7 CFM (
Cubic feet of air moving per minute). —
Rated power of vent is CFM.
Look for power vents that provide at least the minimum CFM requirements.
Remember, the higher the CFM, the more air is exchanged per hour. —
Note: For roofs with a spacing of 12 or higher 8, you may want to add 20 CFM capacity to handle a larger volume of attic space. —
Most power loft vents have only thermostats, so they only monitor the heat in the attic.
Moisture accumulation is also a problem in the attic.
The solution is a power loft ventilator with a combined thermostathumidistat. —
Keep in mind that operating power loft breathing opportunities generates energy costs. —
For the best performance, sufficient soffit ventilation must be installed. —
If the gable vents are used, they must be installed at the downwind end of the home. —
A power loft fan is usually enough unless it is a very large loft. —
The loft fan is ideal for hip roof without enough Ridge Mount ridge vents. —
The loft fan is equipped with a preset adjustable thermostat to provide maximum convenience for the homeowner. —Gable-
The installed power vent is a great choice for tile roof ventilation.
They don't need roof penetration.
If you need a power loft fan, consider the new kids on the block --a solar-
Loft fan.
As the name suggests, the fan is powered by the sun and does not require an electrical connection, thus saving your electricity bill.
When power loft ventilation is needed, we consider this revolutionary device to be a better and more eco-friendly loft ventilation.
For more tips and information on home improvement, please visit our website www. onthehouse. com. —