The short answer is no, but the real question is: how does rain and water affect oriented strand board (OSB)? Let’s dig into the details of OSB’s construction.
OSB is a type of engineered wood formed with industrial grade adhesives that seal and bond the individual wood strands together. In addition to the adhesive, water-resistant wax coats the wood strands for more protection. The edges of each OSB panel are sealed, adding more protection against water.
There is a difference between “exterior use” and products designed for “use as exterior sheathing.” OSB is not suitable for unprotected exterior (outdoor) use, but it is well suited for use as exterior sheathing on walls and roofs.
In both cases, the OSB will be protected from permanent exposure. The “Exposure 1” designation for OSB means it is designed to withstand short-term exposure to moisture during normal construction periods which means it can be left uncovered after installation for a short period of time without compromising structural integrity. However, if you have uninstalled materials on the jobsite waiting for use, be sure to store and cover them per the manufacturer’s instructions.
Since OSB is often exposed to the elements during construction, it’s critical to choose OSB that is moisture resistant. To help avoid sub-floor problems from pooling rainwater, choose a sheathing like LP Legacy® Premium Sub-Flooring panels. The key to the high moisture resistance of LP Legacy sub-flooring is how it’s made.
LP Legacy panels are packed with more strands, resin (with Gorilla Glue Technology®) and wax to provide exceptional resistance to moisture and edge swell. The strands are then aligned in a specific orientation and sent through a press to bond at the molecular level. The panels are then sanded, cut to size, profiled with a tongue & groove and LP’s RainChannel® notches, and edge sealed.
That’s not the only advantage. It’s also easy to install, as this brief video demonstrates.
LP Legacy Premium Sub-Flooring comes with a unique Covered Until It’s Covered® no-sand warranty plus a lifetime limited warranty that lasts as long as the home.
As far as its water-resistant properties go, don’t take our word for it. Check out this one-minute video demonstration.
But LP Legacy panels aren’t the only water-resistant products LP has to offer.
With an integrated, water-resistive overlay, LP WeatherLogic® Air & Water Barrier is a Structural I OSB wall and roof sheathing panel that offers structural defense and protects against air and water infiltration when all panel joints are taped or sealed with LP WeatherLogic tape or sealant.
The panel’s permeability allows moisture to dry, an innovation that provides reliable performance for years to come. Rated for both wall and roof applications, the system eliminates the need for housewrap or roof underlayment, in most cases.
To create an even stronger system, you can build with accessories for several LP Structural Solutions products.
For flooring, it is important to use a sub-floor adhesive such as LP Legacy® Sub-Floor Adhesive, which can be applied with LP TopNotch 350 and LP Legacy sub-flooring to help protect against squeaks. Pair LP WeatherLogic panels with LP WeatherLogic Seam & Flashing Tape or Sealant to create a tight building envelope that seals out air and moisture.
LP Structural Solutions accessories are easier than ever to get in your hands. Shop them on Amazon here.
You can’t stop the rain, but you can certainly minimize water damage to your sub-flooring and sheathing by choosing products like LP Legacy Premium Sub-Flooring and LP WeatherLogic Air & Water Barrier.
For more information about LP Legacy Premium Sub-Flooring, visit lpcorp.com/legacy or click here.
To learn more about LP WeatherLogic Air & Water Barrier, visit lpcorp.com/weatherlogic or click here.
It’s no secret that many developers, architects and builders are reducing lot size as one way to hold down housing costs and maintain profitability. In fact, the rise of zero-lot-line homes, odd-lot/infill development and compressed parcel spacing is helping shape a new housing normal for many communities. This downsizing is focusing attention on minimum fire separation distance.Continue Reading
Resiliency Solutions6 min
To increase consideration for building more resilient homes, LP Building Solutions is partnering with the First Street Foundation®, a coalition working to help builders assess and protect against environmental threats from fire, extreme heat, flooding and wind.
All of this points to an essential question everyone in construction is asking today: How can we build an effective team and retain our best talent? And that’s fair to wonder with all of the industry’s current staffing challenges. But here’s the good news: you can still take steps to create a highly talented team that delivers exceptional results.
Many are specifying LP® FlameBlock® Fire-Rated Sheathing because it meets code requirements for fire-resistant construction while potentially providing faster and easier installation than assemblies that use exterior gypsum and structural panels. They can also provide added design flexibility by reducing the overall wall thickness.