Does Smartside Siding Need Vapor Barrier

The insulation is not yet installed.

Does smartside siding need vapor barrier. This guide compares the advantages and disadvantages of lp smartside vs. Building a new shed is a rewarding experience and if done right can hold up for decades. Wrbs including tyvek are vapor permeable. According to the installation instructions for smartside siding lp smartside 76 series lap siding may be attached directly to framing members spaced up to a maximum of 24 in 600 mm on center so you don t need any sheathing under the siding.

But this wrb is not a vapor barrier. Lp smartside expertfinish features an expertfinish lap to avoid the need for seam caulking joint molds or pan flashing on the jobsite. In your case the barrier would go between the studs and the smartside panels. Moisture barrier house wraps do the same thing but for rain snow and other outside moisture.

The plastic should be 6 mil poly but 10 mil to 20 mil is better. Lp smartside meanwhile requires far less maintenance and is more water resistant. A vapor barrier reduces the movement of water vapor by. You don t want a vapor barrier in this.

0 465 in x 15 968 in x 191 875 in. 0 5 in x 16 in x 192 in. Although your siding is your home s first defense against wind many types have small gaps and cracks at the joints where siding panels line up. Not every wall does.

It features a lip on the profile of the product that helps contractors line up each piece of lap to exact specifications on the 3 8 gap. Colorview makes selecting and coordinating siding roofing and trim easier and more fun. I m having an addition built onto my existing brick home. The installation instructions explain that smartside is installed with nails or screws not adhesive.

Your shed does not need moisture or vapor barrier unless you plan to heat or cool it. Does this wall assembly need a vapor barrier such as tyvek a. Smartside 120 series primed engineered lap siding common. Building codes require a water resistive barrier like tyvek behind the siding.

And that leads to air infiltration and seepage the kinds of things that drive up energy costs. When a vapor barrier is on the side of a wall where the dry air is i e outside in winter or inside in summer moisture problems can occur. If you cool your shed the moisture barrier goes on the outside of the building. A vapor barrier s job is to keep water vapor in humid air from diffusing through one side of a wall and finding a cool surface inside the wall.

The question i have is about the house wrap vs vapor barrier. This new feature will only be available on expertfinish products. A vapor retarder is a material used to prevent water vapor from diffusing into the wall ceiling or floor. Do you need to add more storage space in your backyard.

After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one.