BUILDING SKILLS: Tape Housewrap Seams to Keep Water and Air Out - Fine Homebuilding

previous
  • Energy-Smart Details
    Energy-Smart Details
  • Read FHB on Your iPad
    Read FHB on Your iPad
  • Video: Install a Fence
    Video: Install a Fence
  • Master Carpenter Videos
    Master Carpenter Videos
  • 7 Smart Kitchen Solutions
    7 Smart Kitchen Solutions
  • Design Inspiration
    Design Inspiration
  • Video Series: Tile a Bathroom
    Video Series: Tile a Bathroom
  • 9 Concrete Countertops Ideas
    9 Concrete Countertops Ideas
  • Hot Water Now
    Hot Water Now
  • Classic Cabinets
    Classic Cabinets
  • Pro Tool Rental. Learn More.
    Pro Tool Rental. Learn More.
  • Tips & Techniques for Painting
    Tips & Techniques for Painting
  • All about Roofing
    All about Roofing
  • Clever daily tip in your inbox
    Clever daily tip in your inbox
  • Radiant Heat Comparison
    Radiant Heat Comparison
  • Custom Flooring Inspiration
    Custom Flooring Inspiration
  • Remodeling Articles
    Remodeling Articles
  • Magazine Departments
    Magazine Departments
  • Basement Remodeling Tips
    Basement Remodeling Tips
  • 7 Small Bathroom Layouts
    7 Small Bathroom Layouts
  • 7 Trim Carpentry Secrets
    7 Trim Carpentry Secrets
next

Building Skills

Building Skills


BUILDING SKILLS: Tape Housewrap Seams to Keep Water and Air Out

comments (3) July 14th, 2010 in Blogs

Video Length: 2:16
Produced by: John Ross


Our Building Skills video series is for new carpenters learning the basics of quality construction, and for old pros who want to share their experience.

In this episode, watch remodeler and Fine Homebuilding editor Justin Fink tape weather-lapped seams, and patch holes in new housewrap on an exterior wall. Getting these details right will keep water out, making your walls more durable. With taped seams, building paper can also work as an air barrier, helping insulation work better, and reducing condensation and mold-growth in your walls.

 

Also read: To housewrap, or not to housewrap

 

Watch our previous episode of Building Skills: Installing Housewrap at Corners



posted in: Blogs, weatherizing, water and moisture control, siding, walls

Comments (3)

michaelmroz michaelmroz writes: Not only does the tape provide a great water barrier but it is a great air barrier.

I did a video on this for demonstration purposes. Its pretty cool.

http://www.youtube.com/watch?v=0OQl9d5YbIY
Posted: 12:00 pm on July 19th

Tyman1 Tyman1 writes: I question the practice of taping the horizontal seams in housewrap. It seems to me that this violates one the golden rules of weatherizing: Allow water to drain.

With the piece above lapping over the piece below, taping this seam creates a pocket that could trap water. The water then can only travel horizontally until it reaches a vertical seam where it either get's trapped again or seeps behind the adjacent sheet to bare sheating.
Posted: 1:52 pm on July 18th

MikeGuertin MikeGuertin writes: Best practice does call for a mechanical patch over tears and holes as Justin shows. There are a few finer points when preparing a patch piece and the housewrap itself.

I start by sizing the patch piece at least 10 inches taller than the damaged area and a foot wider. I slightly taper cut the piece so the top is about 1 inch narrower than the bottom.

I place the patch piece over the damaged area as a visual guide for how wide to make the horizontal cut. Make the horizontal cut about an inch above the top of the damaged area - that way you don't have two loose flaps to contend with. There is no purpose for the short diagonal cuts that Justin shows; one single horizontal cut is all that's needed.

Then slip the top of the patch piece into the horizontal slice and push it upwards about 4 or 5 inches. Since the patch piece is tapered, it will fully fill to the sides of the slice for a much mechanical protection as possible.

Then you can tape around the perimeter - 4 straight pieces- starting at the bottom, then the sides then the top.

I learned this process from Carl Hagstrom. He's devised many housewrap installation details that have been adopted by DuPont and other housewrap manufacturers and included in their instructions.
Posted: 12:15 pm on July 17th

Log in or create a free account to post a comment.