We do ventilation in the garage with our own hands

We frequently prioritize maintaining our homes’ living areas as comfortable and welcoming as possible. However, what about our carports? Like any other part of the house, garages can benefit from adequate ventilation, despite being frequently disregarded. It doesn’t matter if you use your garage for parking, storage, or a workshop—maintaining air quality and avoiding problems like mold and mildew buildup depend on proper ventilation. This post will discuss how to take control of the situation and take on garage ventilation projects on your own.

When there is little airflow or during the warmer months, garages can become stuffy and stagnant spaces. Moisture and pollutants can build up without enough ventilation, creating unpleasant odors and possible health risks. Bad ventilation can even affect the quality of air in your living areas if your garage is attached to your house. You may contribute to a safer and healthier home by installing efficient ventilation solutions in addition to making the space more comfortable.

Installing ventilation fans is one of the easiest and most efficient ways to ventilate your garage. These fans aid in removing extra moisture, stale air, and air circulation. You can choose from a range of fan options, including wall-mounted fans, ceiling fans, and even solar-powered fans for energy efficiency, depending on the size of your garage and your particular needs. The air quality in your garage can significantly improve with a simple do-it-yourself installation of these fans.

By carefully positioning vents or louvers, you can improve airflow in your garage in addition to mechanical ventilation. Air can naturally enter and exit a space using these passive ventilation techniques; no electricity or moving parts are required. You can create efficient cross-ventilation that helps to keep the air fresh and prevent stagnation by carefully placing vents based on the design of your garage and the direction of the prevailing winds.

It’s important to take into account your garage’s size, layout, and any unique issues or worries you may have, like excessive moisture or chemical odors from stored goods, when organizing your garage ventilation project. You can provide a more cozy, secure, and healthful environment for you and your family by being proactive about garage ventilation and putting the best solutions in place for your needs.

Step Description
Gather Materials Collect necessary tools like a drill, screws, duct tape, and a vent fan.
Plan Ventilation Determine the best location for the vent fan in the garage wall, considering airflow and accessibility.
Mark Position Mark the spot for cutting the hole for the vent fan using a pencil or marker.
Cut Hole Use a drill to make a starter hole, then cut out the vent fan hole using a jigsaw or reciprocating saw.
Install Vent Fan Mount the vent fan securely in the hole and connect it to power according to the manufacturer"s instructions.
Connect Ductwork Attach ductwork to the vent fan, directing airflow outside the garage. Seal connections with duct tape to prevent air leaks.
Test Ventilation Turn on the vent fan and ensure proper airflow, adjusting as needed for optimal ventilation.

What scheme to do ventilation in the garage

Three different ventilation strategies exist: forced, natural, and combined. Which option to select will depend on the garage’s specifications. For a small dry room of a reasonably basic natural system, either without or with an observation pit and basement.

Forced or combined ventilation should be preferred if the garage is consistently damp.

Since lowlands retain moisture continuously, even during the hottest summer months, the system is frequently appropriate for locations that include both an observation pit and a basement. Before we get too deep into the plan, let’s review its advantages and disadvantages. Eliminating dampness will facilitate the DIY air drainage.

Natural ventilation with a tributary and hood

In the most basic setup, air circulation happens as a result of temperature and pressure differences between the garage room and the street. There are two components to the scheme:

  1. Hood for air and moisture. The pipe goes out into the street through the roof or upper area of the wall. In the simplest version, the duct is located under the ceiling. More complicated is the scheme for the garage with the basement, where it is required to lower the second end of the pipe to the ceiling of the lower -level room. An additional duct is provided under the ceiling of the upper level premises. The hood with two channels will remove wet air from the garage and the basement.
  2. An influx for supplying fresh air. The pipe goes outside in the lower part of the wall about 20-30 cm from the floor. If the garage is with the basement, it is necessary to provide an additional duct with immersing it to the floor of the lower level.

The cost of natural ventilation will be low. Even a teenager can assemble air ducts from sewer PVC pipe. The system’s independence from electricity is an added benefit. There is continuous air exchange.

Due to the lack of fans in the air ducts, natural ventilation is typically preferable for the garage. Air flows are impeded by the blades when they are turned off.

Forced ventilation stops exchanging air until the garage owner doesn’t activate the system. You will experience the following drawbacks of the natural ventilation system in addition to its benefits:

  • In the summer on the street warmer than in the garage. Cold air according to the laws of physics remains at the bottom of the room, does not rise to the ceiling for diverting through the hood. Stream circulation slows down or completely stops. You will encounter a similar problem in the winter, when there is a thaw on the street, and it is cold inside the unheated garage.
  • Due to sharp pressure drops, natural ventilation becomes a source of drafts in the garage.

While significant, the drawbacks are reversible. Install gimmers in the air ducts to control thrust and use mineral wool or a foam shell for thermal insulation to insulate the pipes for optimal system performance.

Forced ventilation

Similar supply and exhaust ducts make up the system, but forced air mass circulation with fans allows for air exchange. The equipment that is axial or channel is found within the air ducts.

With a recuperator, sophisticated plans are created for a service station. The node can filter, distribute, and heat or cool air flows via the channels.

Benefits of the imposed system

  • the possibility of automation of the process, adjusting air flows to eliminate the formation of drafts.
  • stable work, regardless of the difference in temperature or pressure on the street and inside the garage;
  • the possibility of filtering, heating in winter and cooling in the summer of supply air;

Among the drawbacks are the expensive equipment and the challenge of doing an installation by hand. The electrical system is reliant on it.

The cost of the used kilowatts must be covered. Air exchange slows down when the electricity is turned off or when equipment malfunctions.

Combined ventilation

Between forced and natural ventilation, a combined system varies in complexity, efficiency, benefits, and drawbacks. One fan and air ducts make up the circuit.

Place the exhaust or the influx of potentially harmful equipment on the hood. The fan is typically fastened to the hood. Air naturally enters the garage through the supply holes from the street. Through an exhaust duct, the fan is removed from the premises by the spent air masses.

Integrated ventilation system featuring a hood fan

The combined system’s benefits include:

  • independence of air circulation from the difference in temperature and pressure;
  • DIY assembly simplicity;
  • accessibility in price due to the minimum number of equipment.

One of the drawbacks is reliance on electricity. The air exchange becomes worse when the fan is turned off, and you have to pay for kilowatts.

One drawback of combined ventilation is that it lacks a recuperator, which makes it unable to warm, cool, or purify air flows when compared to a multifunctional forced system.

Norms, calculations of the garage ventilation system

As per SNiP 21-02-99, every car parking space in a garage requires 180 m 3 of air exchange per hour. Multiplicity is defined as one complete cycle per unit of time. In winter, a temperature of +5 o C is advised.

Large garage spaces of a service station (maintenance stations), where machine repair and maintenance are done, are subject to multiplicity standards with a coefficient increase from 6 to 10.

To compute ventilation, multiply the width by the building’s length and height to determine the room’s volume. The result is additionally multiplied by the coefficient with the appropriate value of the air exchange frequency if you have a service station.

After determining the necessary air exchange value, compute the channel cross section. Tables, computer programs, and formulas are used by professional engineers. The home garage’s owner is capable of performing basic online calculator computations.

Use the 100 mm pipe as an example. The typical air flow rate for natural ventilation is 0.5–1 m/s. To find the air flow in the round cross section, enter a larger value of 1 into the calculator window. The result will be 28 m 3 /h.

Read the same for formulas, air duct air speed calculations and norms, the impact of the channel cross section, and other related information.

The indication for a 100×100 mm square crossing channel will be 36 m 3 /h. Use larger pipes or add more ducts to provide the entire garage with multiple ventilation options.

In the forced system, fans run faster to increase airflow velocity. The equipment’s specifications determine the precise indicator. During computations, use the data for particular fans that you found in the factory’s technical documentation.

Enter a value in the online calculator window once you are aware of the air flow rate that causes a fan. For instance, at a 10 m/s air flow rate, the air flow rate in a round section’s 100 mm channel will be 283 m 3 /h, and in a square, 360 m 3 /h.

Ensuring proper ventilation in your garage is essential for maintaining air quality and preventing issues like mold, moisture buildup, and noxious fumes. By taking on the task of ventilating your garage yourself, you not only save money but also gain the satisfaction of a DIY accomplishment. There are various methods you can employ, from installing vents to utilizing fans or even creating a passive ventilation system. Understanding the layout of your garage and considering factors like airflow direction and potential obstructions are crucial in determining the most effective ventilation solution. With some basic tools and know-how, you can improve the air circulation in your garage, creating a safer and more comfortable environment for both you and your belongings.

What will be needed for ventilation installation

The installation and calculation of forced systems are difficult. The equipment is pricey and better suited for elite garages with multiple machines and maintenance stations. Gathering natural ventilation by hand is less complicated.

Among the supplies you’ll need:

  • PVC sewer pipe;
  • Gontile elements: tees, knees, plugs;
  • clamps for attaching pipes to the wall and ceiling.

From the necessary tool:

  • punch with drilling function;
  • drill on concrete, metal, diamond crown for cutting holes in reinforced concrete;
  • roulette, pencil or marker;
  • sealant or mounting foam;
  • Khosaugovka for metal or grinder for pipe cutting.

The hoods of pipes made of asbestos-cement or metal can be used. Nevertheless, working with them is challenging, as is connecting the channels’ branches and turns. moisture-induced corrosion of metal pipes. Rust rapidly clogs the channel and frequently needs to be removed.

Choose PVC pipes over all other options. Plastic is lightweight, non-corrosive, and easily broken into pieces with a hacksaw when cutting through metal.

Purchase a fan in addition to the materials if the combined scheme is preferred. Anchor mounts, a copper wire for wiring, a protective gun, or a standard switch are required.

Enhancing the ventilation in your garage is important for protecting your family and house as well as for preserving the quality of the air. You can effectively mitigate issues like moisture buildup, odors, and potentially harmful gases by using easy DIY ventilation techniques.

The simplest and most economical way to ventilate your garage is to strategically place vents or louvers. They facilitate the flow of air, avoiding stagnation and lowering the possibility of the growth of mold and mildew. Installing a vent fan can also improve airflow, particularly in spaces with limited natural ventilation.

Making sure the insulation is adequate is another important part of garage ventilation. In addition to assisting with temperature regulation, insulating your garage helps stop heat loss in the winter. This can result in reduced energy use and increased effectiveness, transforming your garage into a more comfortable and useful area all year long.

The size, shape, and layout of your garage should all be taken into account when designing your ventilation system, along with any unique needs arising from its intended usage. Whether you’re turning your garage into a home gym, workshop, or storage area, the secret to getting the best results is to customize your ventilation strategy to fit your needs.

In the end, spending some time improving the ventilation in your garage will pay off in terms of the general safety and comfort of your house. You and your family can live in a healthier space by implementing these do-it-yourself tips and techniques to create a well-ventilated environment that improves air quality and reduces moisture-related problems.

Video on the topic

DIY garage ventilation / hood in the garage

DIY ventilation in the garage: an influx and an exhaust pipe with a deflector: how to do everything yourself.

Working scheme of natural garage ventilation with a cellar. Get rid of dampness and condensate.

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