What do you put behind Hardie planks?

Here are the steps you need to take to ensure a smooth process: Prepare for the project – To prepare for your siding installation project, you’ll need to do these three things. First, sheath the walls with foam, plywood, or oriented strand board (OSB). Next, cover the sheathing with felt paper or house wrap.

Does Hardie board need a moisture barrier?





Depending on your local building authority having jurisdiction (the AHJ) over your building codes, vapor barriers are almost always required, whether your builder uses James Hardie products or some other, inferior product.

Which house wrap is best?

Originally, asphalt-laden felt paper was thought to be the best type of house wrap on the market. In fact, it’s still available, along with other house wrap solutions. However, Dupont’s Tyvek HomeWrap® is considered by most in the building profession to be the industry leader.

What is Hardie wrap?

HardieWrap weather barrier is a premium, non-woven, water-resistive barrier. It contains a unique MicroTech™ coating that provides a better balance of water resistance and water vapor permeability, reducing water intrusion while releasing moisture vapor from inside to dry out the wall cavity.

How do you install Hardie underlayment?

Quote from the video:
Quote from Youtube video: To start apply a supporting bed of mortar or modified thinset to your subfloor with your trowel. Using a sliding motion firmly. And evenly embed your Hardiebacker cement board in the wet mortar.

Do you caulk Hardie board joints?





James Hardie DOES NOT recommend using caulk or “H”-jointers for the butt joints of HardiePlank® siding with ColorPlus® technology. James Hardie also DOES NOT recommend applying caulk to the horizontal overlap between siding planks (see Figure 2).

Do I need plastic behind Hardie board?

plastic behind cement board with waterproofing is essentially suspenders when you already have a belt. the waterproofing is also a vapor retarder so if the red guard or kerdi product is continuous, lapping corners and all, the plastic will be unnecessary.

Can Hardie board go directly on studs?

HardiePlank® lap siding can be installed over braced wood or steel studs spaced a maximum of 24″ o.c. or directly to minimum 7/16″ thick OSB sheathing. See General Fastening Requirements. Irregularities in framing and sheathing can mirror through the finished application.

How do you seal Hardibacker joints?

Quote from the video:
Quote from Youtube video: This area right here what you wanna do is you want to take some of the thin set mortar you want to just put it on the teeth and then sweep it off so that you get a nice thin layer on the teeth.

What is the difference between woven and non-woven house wrap?



What is the difference between nonwoven and woven housewrap? The key difference is the method by which the vapor permeability is achieved in the two types. Most woven products tend to require microperforations to allow vapor permeability, while non-wovens do not.

Is typar the same as Tyvek?

Typar® Building Wraps has a lower perm rating compared to Tyvek® HomeWrap®; so, a wall covered with Typar® can take longer to dry, which increases the risk of mold, mildew, and rot. Tyvek® HomeWrap® has a drainage plane so can manage bulk water better than Typar® Building Wrap, that does not have a drainage plane.

Can you use vapor barrier for house wrap?

For example, House wrap by itself is not an air barrier, it is a vapor barrier. However, IF installed properly, which is rare, with taped seams, bottom, top edges, and no tears, it acts as an air barrier. So primarily it acts as a vapor barrier, but installed properly can do both; vapor barrier and air barrier.

What are the different types of house wrap?



Comparing 5 Common House Wrap Options

  • Barricade® Wrap Plus. Barricade® Wrap Plus is a non-perforated, non-woven polyolefin product with a semi-permeable membrane. …
  • Tyvek® HomeWrap. ®
  • HomeGuard® House Wrap. …
  • CertainTeed CertaWrap™ …
  • The ZIP System.


What is better than Tyvek?

While both Tyvek® HomeWrap® and the ZIP System provide air- and moisture-resistance, each has potential problems that may diminish their intended purpose. A better solution to a WRB is Barricade® Building Wrap. Barricade Building Wrap is strong, durable, permeable, and easy to install.

Do you tape the bottom of house wrap?

Seal the bottom of the house wrap to the sheathing with caulk or tape. Overlap the layers shingle-style as you go up the wall—like roofing shingles. Overlap vertical seams 6-12 inches.

What goes under house siding?



Underlayment or weather resistive barrier (WRB) is installed between the siding and the sheathing. This can be tar paper or a house wrap such as HardieWrap® or Tyvek HomeWrap®. HardieWrap® is great for keeping water out and at the same time letting water vapor escape from the house.

Do you need Tyvek under siding?

Is It Mandatory To Install House Wrap Behind Vinyl Siding? There are no specific laws or building codes requiring homeowners to install house wrap behind siding. So, in a way, you can get away with not wrapping your house in a protective waterproof barrier.

How do you wrap a house before siding?

Quote from the video:
Quote from Youtube video: So to start out with already pre-cut the house wrap to a little bit longer than the need the length I need it and I've attached it with a couple staples up there just to get a hang.