Menu
Business Advice5 min

Managing Dead Load With the Right Construction Materials

There are several different types of loads that affect a structure. Building code requirements are specified in terms of the minimum loads that a structure must be able to support.

Generally speaking, residential and commercial buildings are designed for a variety of loads such as live load, snow load, wind load and seismic (earthquake) load in addition to having to support the self-weight of the structure (the dead load). 

Here we answer questions regarding dead load. 

What is the difference between dead load and live load?

Dead loads are the weight of the structure and the materials used to construct the building. This includes, among other things, the weight of the framing, sheathing, insulation and finish materials as well as the weight of permanent equipment such as roof-mounted HVAC units. 

Live loads are the people and their belongings such as furniture and non-fixed (not permanent) appliances such as dishwashers or microwaves. Live loads are considered transient, meaning they can change based on the number of occupants, different furniture and the like, while dead loads are permanent. 

So why do you need to calculate dead loads and live loads?

The building codes require that a structure be designed to support all the anticipated loads without collapse. While strength is the primary objective to support occupant safety, the codes also include requirements for serviceability—the conditions under which a building is still considered useful—to provide a level of adequate performance for the occupants. So when considering the dead load of building materials, it’s the weight of those materials. 

Is dead load for building materials the same as uniform load capacity?

Dead load for building materials is not the same as uniform load capacity. Uniform load capacity is the allowable load distributed across a whole region or element, such as a beam. The dead load of the building materials themselves is typically part of the uniform load capacity required. The dead load of the building materials, in other words, factors in the overall uniform load capacity. However, dead load can also be a discrete (point) load such as an HVAC unit mounted on a roof or a bracket supporting a water-filled sprinkler pipe.

Is dead load in residential construction a factor?

All loads, including dead loads, are important factors when designing any structure. For example, typical residential floor dead load ranges from 10 to 15 pounds per square foot (psf). However, heavier floor coverings such as tile can double the load or more. 

In the technical information for LP Legacy® Premium Sub-Flooring, you’ll find data regarding the mechanical properties for 24oc APA-rated single-floor structural panels. LP Legacy sub-flooring panels are APA-verified panels that are one of the industry’s strongest, stiffest sub-floors, which can help a designer address demanding load conditions. LP Legacy sub-flooring also features exceptional fastener-holding properties to help secure tile backer or expensive hardwood to the sub-floor.

LP Legacy Premium Sub-Flooring features enhanced bending strength and stiffness over commodity OSB. 

Want to learn more about LP Legacy Premium Sub-Flooring and what pros think on when to use it? Discover why sub-flooring is so important at lpcorp.com/legacy. 

Continue Reading
Business Advice5 min

Is There A More Water-Resistant OSB Board?

The #1 problem on a jobsite? Water. Because when it rains, it pours. When rain hits before a new house is fully closed in, it can be disastrous not only for your construction schedule but also for your home’s sub-flooring and exterior sheathing.

Continue Reading
Business Advice4 min
The Value of a Single Manufacturer

With the rise in popularity of homebuilding TV shows and access to an abundance of exterior products and accessories, homeowners are more aware than ever of their home’s exterior. While style and design are top-of-mind for your clients, efficiency is also on your radar as a builder. Thankfully, you don’t have to choose between the two. We talked with building pro Kyle Stumpenhorst about the ways a versatile product suite like LP® SmartSide® Trim & Siding can help achieve a customizable and efficient build.

News & Stories4 min
Behind the Scenes: Calculating Construction Costs With RSMeans Data

When building professionals are selecting building materials and calculating construction costs, many turn to third-party testing such as the RSMeans estimating handbook and online tools —especially as they relate to installation time savings and validating manufacturers’ claims. The group studied LP® SmartSide® Trim & Siding installation specifically, and we sat down with them to ask how RSMeans data works and what takes place behind the scenes of their time-labor studies.

Business Advice3 min
Are All Sub-Floor Adhesives The Same?

Want to reduce callbacks on your construction projects? Well, squeaky floors are one of the most common causes for callbacks, and the most common cause of squeaky floors is a failure to securely attach sub-flooring to floor joists. Here’s a simple and painless remedy to resolve this problem.