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What is a Baffle in Construction: An Essential Guide

Understanding the concept of a baffle in construction is crucial for anyone involved in the construction industry. This article aims to provide a simple and easy-to-understand overview of baffles, their benefits, and the conditions in which they can be used effectively.

I. What is a Baffle in Construction?

- Definition and basic explanation of baffles in construction.

- Highlight the purpose and functionality of baffles.

II. Benefits of Baffles in Construction:

A. Soundproofing:

1. Reduces noise transmission between rooms or floors.

2. Enhances privacy and comfort within a building.

B. Thermal Insulation:

1. Provides an additional layer of insulation.

2. Minimizes heat loss or gain, improving energy efficiency.

C. Fire Resistance:

1. Acts as a barrier against the spread of fire.

2. Increases safety measures within a building.

D. Airflow Control:

1. Regulates the movement of air within HVAC systems.

2. Optimizes ventilation and air conditioning efficiency.

III. Conditions for Using Baffles in Construction:

A. Residential Buildings:

Baffles are flow-directing or obstructing vanes or panels used to direct a flow of liquid or gas. It is used in some household stoves and in some industrial process vessels (tanks), such as shell and tube heat exchangers, chemical reactors, and static mixers.

What is a baffle in construction terms?

Put simply, baffles are devices that help control the flow of air or water. In construction, they're typically used to prevent unwanted movement of air or water between spaces.

What is a building baffle?

Baffles are used as part of the ventilation. System for an attic. And they're required to protect insulation from falling into um soffit venting and stopping the flow of venting from down below. So

Do I need baffles in every rafter?

Keep in mind not all rafter need baffles, just those with intake vents at the soffit. If you don't have baffles installed, check your intake vents for any type of blockage for insulation or debris. This can be cumbersome since you will need to squeeze to the corners of your attic.

What are the three types of baffles?

Types of baffles
  • Longitudinal Flow Baffles (used in a two-pass shell)
  • Impingement Baffles (used for protecting bundle when entrance velocity is high)
  • Orifice Baffles.
  • Single segmental.
  • Double segmental.
  • Support/Blanking baffles.
  • Deresonating (detuning) baffles used to reduce tube vibration.

How many attic vent chutes do I need?

To determine the total vent area, measure the length and width of your attic in feet, then multiply the two measurements to get the attic area, then divide the number by 150 to get the vent space in square feet (length x width)/150.

How much does it cost to add attic ventilation?

Attic fans range differently depending on what kind of the Attic fan you are installing, you can expect to pay between $350 to $1,000 installed. The pricing varies based on the type of Attic fan, the sizing requirements, and the motor type.

Frequently Asked Questions

What is the difference between a baffle box and a sewn through down jacket?

Sewn-through construction creates pockets for the Down but compresses it where the fabric is sewn together. This means the Down cannot reach its full loft, and the duvet may not be as fluffy. Baffle box design helps reduce the wear on the fabric of a Down duvet because it gives the construction more stability.

What is a baffle construction?

Baffle box construction refers to a method in which duvets are made, where the shell is sewn in stitched squares, or pockets. Each of these closed pockets is stuffed with a uniform amount of down, and when air becomes trapped within the "wall" of each pocket it results in a fluffy, airy duvet.

Is baffle box better?

Baffle box bedding is often preferred by people who want a fluffy and lofty comforter or duvet that will stay evenly distributed and not form lumps or clumps over time. The three-dimensional boxes also help to trap air inside the bedding, providing extra insulation and warmth.


Where do baffles go?

The baffles fit between the rafters starting from the upper edge of the soffits and extending a few feet upwards. This prevents insulation off-cuts and debris from blocking the airflow. However, you only need to install them between pairs of rafters that straddle soffit vents.

What is the purpose of the baffles?

Baffles serve two functions: Most importantly, they support the tubes in the proper position during assembly and operation and prevent vibration of the tubes caused by flow-induced eddies, and secondly, they guide the shell-side flow back and forth across the tube field, increasing the velocity and the heat transfer

How are baffles attached?

How are Baffles Attached? Baffles aren't welded to the inside of the tank. Instead, they're installed with polyethylene encapsulated bolts and closed with a gasket to prevent leaks. These are the same bolts that are used for internal/external pipe support.

What is a baffle in construction

What is a baffle on a jacket?

Baffles are the pockets of space that are created between two layers of fabric which then hold the goose or duck down that is in your jacket. These chambers filled with down are how the jacket keeps you warm.

What is baffling in clothing?

Baffles are sewn box cavities that prevent the insulating material from settling in one spot. Baffles can be found in sleeping bags and puff jackets. This technique prevents heat loss, helping the wearer maintain uniform warmth.

Should you hike in down jacket? Down jackets are excellent when you know you can maintain a dry jacket and want to minimise your gear weight as well as the bulk in your pack e.g. long distance through-hiking. Jackets that contain natural insulation will usually contain down, or less commonly Merino wool.

  • What is a box baffle down jacket?
    • In box baffle construction the baffles are created individually with sidewalls that keep the down in place, essentially building cubes for the down. The down is able to maintain its loft and therefore its warmth.

  • How many vent chutes do I need?
    • To determine the total vent area, measure the length and width of your attic in feet, then multiply the two measurements to get the attic area, then divide the number by 150 to get the vent space in square feet (length x width)/150.

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