Clear-Span Metal Buildings and Wind and Snow Loads
Are you worried about finding a structure that's up to the challenge of heavy snow and high winds? Clear-span metal buildings are literally built for the job. Their tough engineering allows them to stand tall with no need for internal supports, and handle elements that would damage lesser structures.
Below, we'll explore clear-span metal buildings in greater detail and show you why they're some of the most effective options for weathering heavy snow accumulation and volatile weather.
What Are Snow and Wind Loads?
You'll often hear the terms' wind loads' and 'snow loads' when dealing with metal buildings. But what do those words mean?
Snow loads are the measurement of the weight of accumulated snow on the roof of a metal building and are typically expressed in pounds per square inch (psf). Most clear-span metal building manufacturers will design and certify the structure against the average snow accumulation in your area.
Wind loads measure a structure's ability to withstand 5-second intermittent wind gusts and are often categorized into lateral wind loads, which approach from the sides, and uplift loads, which can occur when wind impacts the underside of the roof. Like snow loads, most building regulations require engineering based on the average wind loads in your area.
How Clear-Span Metal Buildings Handle Snow Loads
Since clear-span steel structures are engineered to bear the brunt of the building's weight on the outside edge, they can offer unrivaled protection without the need for internal support beams. Their reinforced truss systems operate much like a bridge, transferring the weight to the exterior columns.
This unique design allows clear-span buildings to flex and handle heavy snow loads without the potential for damage or failure.
How Clear Span Metal Buildings Handle Wind Loads
Much like snow loads, clear-span engineering enables these structures to hold strong against some of the worst weather events in your area. Their galvanized steel framing and paneling flexes when subjected to outward pressure and can withstand strong forces that would cause other construction materials to fail.
Snow and Wind Load Ratings for Metal Buildings
Wind and snow load ratings are often broken-down state-by-state or region to region. These measurements aren't standardized and are typically based on the local geography, elevation, and the average wind speed and snowfall totals in your area.
Building authorities in one area may require a structure to carry a 30 psf snow load rating, while storm-prone states like Florida may have higher requirements on wind loads. As such, it's important to work closely with your building provider and local inspector to gain a clear understanding of local building codes and requirements.
Factors That Help Clear-Span Buildings Withstand Snow and Wind
How are clear-span structures able to weather the storm so well? Their capabilities come down to the following:
Higher Roof Pitches
Steeper roof pitches are capable of shedding snow more efficiently than shallower roof pitches.
Steel Framing
Galvanized steel is naturally resistant to rust, preventing damage from moisture over time, even in stormy conditions.
Secure Anchoring
Clear-span buildings are securely connected to their foundation for additional strength and protection from high winds.
Tips for Maintaining Your Clear Span Metal Building in Harsh Climates
With the right upkeep, your steel structure can last for decades. To help keep your building in it for the long haul, we've put together some handy maintenance tips:
Clear Snow Regularly
Snow is heavy, and persistent weight on your rooftops can weaken it over time. Regularly remove snow accumulation to prevent damage or failure.
Inspect for Damage After Storms
Check your building for signs of damage after any significant weather event. This is often the time when damage is most likely to occur.
Clear Gutters
If your building features a gutter system, you'll want to remove any debris that can cause clogs or water retention. Standing water can cause rust to form along your roof, damaging and weakening it if left unchecked.
FAQs About Snow and Wind Loads for Clear Span Metal Buildings
Snow and wind loads can be a tricky topic, and you may have questions here and there. To help, we've put together a checklist of the most common questions we receive about wind and snow loads:
Can a clear-span metal building handle heavy snow?
Answer: Yes, clear-span metal buildings are engineered and certified to handle regional snow loads.
Are metal buildings safe in high winds?
Answer: Yes. Metal buildings are highly resistant to wind forces. They're engineered to hold up to the average 5-second wind gusts in your area, making them one of the safest options for high wind environments.
What roof pitch is best for snow in metal buildings?
Answer: A steeper roof pitch, such as 4:12 or higher, is generally more effective in snowy regions. Steep pitches encourage snow to slide off the roof, reducing the risk of excess accumulation.
How are wind ratings for metal buildings determined?
Answer: Local building codes specify the basic wind speed for the area, and engineers use that data to calculate the appropriate wind pressures your building must withstand.
Do I need to clear snow off my metal roof?
Answer: In most situations, no. If your metal building has been designed for the appropriate snow loads in your area, it should be able to support normal snowfall without issue. However, after major storms or when snow drifts accumulate, it may be necessary to remove snow to prevent excessive weight.
Go Clear-Span and Stand Tall in Any Environment
If you're searching for a durable, weather-resistant structure that offers extensive open square footage, a clear-span metal building can't be beat. These structures combine their best engineering features to withstand high wind gusts, push away heavy snow accumulation, and provide you with the years of dedicated service you deserve.
If you'd like to know more about snow and wind loads, our experts can guide you. Call us at 888-277-7950 and we'll answer your questions and help you create the clear-span structure your next job requires.
