Planning a Dairy Loafing Barn: What Should You Consider?

Planning a dairy loafing barn starts with the cows and the way your dairy operates, not the shed dimensions.

A loafing barn can give cows a protected area to rest, stand, feed or get out of hot and wet conditions. But putting a roof over an area is only one part of the solution.

The building needs to work with cow movement, feeding, water, bedding, manure management, machinery access and the daily rhythm of the dairy. It also needs to make sense for the site and where you see the operation heading.

You don’t need to have all of that worked out before you talk to us.

Start with your herd, your existing operation and what you’re trying to improve. We can help work through what the building needs to accommodate and coordinate the structural solution with your dairy and project advisers.

Start With How the Barn Will Be Used

Before we start putting dimensions around the building, we want to understand what role the barn will play in your dairy.

Will cows use it mainly during wet weather? Is it somewhere they can get out of the heat? Will they feed and drink inside? Will they spend a few hours under cover or most of the day? Will the barn operate seasonally or throughout the year?

Those differences matter.

A barn used primarily for wet-weather protection can have different requirements from one where cows spend much longer periods under cover.

Dairy Australia identifies several contained and semi-contained housing systems, including cattle shelters, loose housing with deep litter, compost bedded packs and freestall systems. Its Feeding & Housing Infrastructure resources provide more detailed guidance on the different systems. Pasted markdown

For TechSpan, the important thing is understanding which system you’re working towards because that begins to shape the building.

How Many Cows Will Use the Barn?

Herd size gives us a starting point, but it doesn’t tell us how large the building needs to be on its own.

We also want to understand how many cows will use the barn at one time, how long they’ll be under cover and what needs to happen while they’re there.

A 300-cow herd using a loafing barn for several hours during extreme weather may need a different layout from 300 cows housed for most of the day.

Feeding inside the barn can change the requirements again. So can water points, bedding areas, internal machinery routes or dividing the herd into different groups.

Future herd numbers are worth discussing too.

If you’re milking 250 cows today but expect that to become 350, we can consider that during Concept. That doesn’t necessarily mean building for 350 cows now. It may mean positioning the building so it can be extended later, allowing for additional structural bays or making sure today’s infrastructure doesn’t sit in the path of future growth.

Cow Comfort Affects the Building

A loafing barn needs to provide an environment cows can use comfortably.

That brings shade, weather protection, ventilation, bedding, footing, water access and room to move into the building conversation.

Heat stress is particularly important in dairy operations. Dairy Australia identifies reduced feed intake, milk production and fertility among the potential effects of heat stress and recommends measures including shade, air movement, water access and active cooling where required.

Their guidance on managing heat stress in dairy herds provides more detail.

From a structural perspective, building width, eave height, roof pitch, ridge openings, sidewall openness and orientation can all influence natural ventilation.

Nearby buildings and vegetation can affect airflow too.

On some sites, natural ventilation may form the basis of the approach. Others may require fans or additional cooling infrastructure.

We want to understand those requirements while the building is being configured so the structure can work with the dairy’s wider heat-management strategy.

Water Needs to Work With Cow Movement

Lactating dairy cows can have substantial water requirements, particularly during hot weather.

Where that water is provided matters as much to the layout as the volume required.

Cows commonly drink after milking, which means trough position can influence movement between the dairy, barn, feed areas and paddocks. Poorly positioned water points can also contribute to congestion and wet areas in heavily trafficked parts of the facility.

Dairy Australia provides detailed recommendations around supply, trough access and flow rates in its stock water guidance.

The water system itself will generally be developed with your dairy and water specialists. TechSpan needs to understand where that infrastructure sits so the structural layout can accommodate it without compromising cow or machinery movement.

Bedding and Manure Management Affect the Layout

Bedding isn’t simply a material choice. The system you use affects how the barn operates.

Loose bedding may need to be brought into the building, spread, worked and eventually removed. Compost bedded systems require regular mechanical aeration, which means the machinery used to manage the pack needs practical access through the barn.

That can influence clearances, column positions, entry points and internal layout.

Manure and effluent management also need to connect with the wider dairy system.

Dairy Australia’s National Feedpad & Contained Housing Guidelines provide detailed guidance covering contained housing, animal welfare, farm productivity and environmental management.

TechSpan’s role isn’t to determine your bedding or effluent system. We need to understand how those systems will operate so the structural building solution works around them.

Plan Cow and Machinery Movement Together

One of the most useful things we can understand during Concept is how everything moves around the dairy.

That includes cows travelling between the barn, dairy, feed areas and paddocks, but also feed vehicles, bedding machinery, manure removal equipment, staff and general farm traffic.

These movements don’t always follow the same route, and ideally they shouldn’t constantly compete for the same space.

If cows need to cross a feed vehicle route several times a day, or machinery has to reverse through a high-traffic cow area to access the barn, those problems become much harder to fix once the building is standing.

This is where your existing dairy layout becomes valuable.

You don’t need to redraw it for us. Bring us what you have and show us how the operation works today. We can use that information as part of the Concept process.

If Cows Are Fed Inside, Design Around the Equipment You Use

If feeding is part of the barn operation, we need to understand the equipment and process.

Feed bunk position, feed lanes, mixer-wagon access, turning space and the direction vehicles travel can all influence the building layout.

Rather than allowing a generic amount of “machinery access”, it’s more useful to know what you actually use on the farm.

The width of the vehicle, turning requirements and clearance it needs can then be considered when we’re working through the building configuration.

This also gives us an opportunity to look at how feeding vehicles, cows and other farm traffic interact around the building rather than treating each separately. Pasted markdown

A Large Roof Changes How Water Moves Around the Site

A dairy loafing barn creates a substantial clean-water catchment.

As a simple example, 1 mm of rainfall falling on 1 m² of roof represents approximately one litre of water before losses.

For a 5,000 m² roof receiving 700 mm of rainfall over a year, that represents approximately 3.5 million litres, or 3.5 ML, of water falling onto the roof before losses.

What happens to that water needs to be considered as part of the wider site.

Depending on the farm, roof water may be captured, stored, reused or directed away from operational areas. The appropriate solution will depend on the site and wider water-management strategy.

For TechSpan, we need to understand where that water is going so the roof drainage strategy and structural building solution can be coordinated with the wider civil and water-management requirements.

Wet Weather Doesn’t Stop at the Roofline

One of the reasons for investing in a loafing barn may be to provide more consistent conditions during wet weather.

But keeping rain off the cows is only part of the equation.

Water moving towards the building from surrounding land, muddy entry and exit points, trough overflow, roof-water discharge and heavily trafficked areas can all affect how well the facility performs.

A dry area under the roof only solves part of the problem if cows have to move through mud every time they enter or leave it.

That’s why we look at the building in the context of the site rather than treating the footprint as an isolated structure.

Your civil, drainage and effluent specialists can establish the appropriate site solutions. TechSpan can work alongside them so the building, site levels, access and water-management requirements are considered together.

Choose the Site in the Context of the Whole Dairy

The easiest place to construct a building isn’t necessarily the best place to operate it. A loafing barn may need to work closely with the dairy, existing laneways, feeding infrastructure, water, power, effluent systems and machinery routes.

Cow walking distance matters. So does access for feed and bedding machinery.

Orientation and prevailing winds may influence the building position where natural ventilation forms part of the barn strategy. Natural drainage and existing site levels can affect how the building interfaces with the wider property.

Then there’s future growth. If the herd grows, could the barn extend? Would another building or existing infrastructure block that expansion? Is there room for additional feed or bedding infrastructure? Could future changes to the dairy alter cow movement?

These are worth considering before the building position is locked in.

The Structure Comes After We Understand the Operation

Once we understand what your barn needs to achieve, we can start configuring the structure around it.

That includes building width and length, clear spans, column positions, roof geometry, building height, ventilation openings, machinery clearances and how the building may need to expand later.

The structural solution also needs to be engineered for the conditions of the site and the relevant Australian Standards.

But we don’t want to start with those dimensions and then try to make the dairy fit around them.

The operating requirements give us the brief. The structural design develops from there. Pasted markdown

We Work With Your Dairy Advisers

A loafing barn doesn’t sit separately from the rest of the dairy.

Depending on the project, your dairy consultant, veterinarian, nutritionist, effluent specialist, civil engineer, planner or other advisers may establish requirements that affect the building.

TechSpan works alongside that team to coordinate the structural building solution with the wider operational requirements.

You don’t need every specialist appointed or every detail resolved before you talk to us.

Start with what you know about your herd, the existing dairy, the site and what you’re trying to achieve. As the project develops, we can work with the relevant specialists so their requirements are considered as part of the structural solution. Pasted markdown

Where TechSpan Fits

Our approach to dairy infrastructure follows the 3C Advantage.

During Concept, we work with you to understand how the dairy operates, how the barn will be used, current and future herd numbers, the site, cow and machinery movement and what you’re trying to improve.

We also identify the wider requirements that need to be coordinated with your dairy and project advisers.

During Configure, those requirements start shaping the structural solution. We work through the building dimensions, spans, column positions, roof configuration, building height, ventilation openings, machinery clearances and engineering requirements.

During Construct, TechSpan takes the agreed structural building solution through detailing, manufacture and construction.

The aim is to develop the building around the way your dairy needs to operate rather than expecting the operation to adapt to a generic shed. Pasted markdown

What Do We Need to Get Started?

You don’t need to design the loafing barn before you come to us.

Tell us your current herd numbers, where you see the herd heading and how you expect cows to use the barn.

If you have an existing dairy layout or site plan, bring that too. We’ll also want to understand your feeding and bedding approach, the machinery that needs to access the building and what you’re trying to improve.

If some of those answers aren’t clear yet, that’s okay.

Part of Concept is working out what information is needed before the building is configured.