Proper Attic Ductwork Layout

To account for all the necessary factors many professionals use a tool called acca manual d.

Proper attic ductwork layout.

Designing a duct system is important but there are a few critical steps that come first. This is an especially relevant tip for flex ducts more on that in a minute but you need to make sure any ducts in your attic have proper support. Our team of knowledgeable hvac technicians at commonwealth cooling and heating understands the importance of choosing proper ductwork design for your home or business. In this video we ll be learning how to size and design a ductwork for efficiency.

Adapt the design to the type of unit. You can t do both streach out the ducts and get good radius bends at the same time. One on a concrete slab foundation for instance will have to start with a vertical duct to a ceiling or attic. You ve got to know how much heating and cooling you need for each room in btu hr.

Includes a full worked example as well as usin. Note the size for each duct section starting. Determining the most efficient and effective design for heating and cooling ductwork is not an afterthought to the new construction process lowest price and speed of installation should not be your primary concerns because duct performance impacts energy efficiency operating costs comfort and indoor air quality. It is one of the most important factors that affects the overall efficiency of your hvac unit.

How to design a duct system. 2 if the ducts run through the attic don t hang them they need to lay on the ceiling joist or bottom cord streached out and insulation heaped over them. A duckwork system that is designed well decreases the chances of poor connections and leaks. Choose the right duct size and layout.

Number one is the heating and cooling load calculation using a protocol like acca s manual j or the ashrae handbook of fundamentals. Once all the system variables have been decided your hvac design professional can determine the most efficient ductwork design layout and calculate the correct duct size. Ensure proper ductwork sealing. Improperly supported flex ducts will sag which cuts down on airflow.