Adding a new deck to your home is not cheap even if you are a do-it-yourselfer (DIY). According to HomeAdvisor, the typical cost to build 200-500 square foot deck is about $7,000. Of course, there are many factors that go into calculating the cost of building a deck but let’s just say, any way you look at it; you’ll be laying out a lot of cash.
Protect Your Deck Substructure
Building a deck is an investment and one that you should protect. According to our own research conducted with builders, over 90% of a deck’s substructure starts to rot and spilt at around 8-10 years. That is not comforting when you know that the deck boards that it supports are warranted to last about 25 years.
For a few extra dollars, you can protect your deck substructure by applying a peel-and-stick flashing tape that protects the joists and beams from moisture. The tape is applied as a cap (vs. wrapping) directly on top of the joists and beams allowing the wood to breathe. The tape acts as a moisture barrier so water cannot get into the screw holes. This type of application protects your decking sub-structure from wood rot and decay guaranteeing that it will last as long as the deck it supports.
Selecting the Best Joist Tape
Choosing the right joist and beam tape doesn’t need to take a lot effort. However, there are a few things you need to consider before you make your purchase.
- Tape Material
Flashing tape typically comes in two types: asphalt and butyl. Butyl tape has many advantages over an asphalt-based tape. Butyl tape, such as Trex Protect, is stickier, endures less stain, has less high-temperature oozing, and can be applied in a wide range of temperatures. Butyl tape is also more rubbery than asphalt-based tape allowing it to flow better around the screws making for a tighter seal with no water penetration.
Any contractor or DIY homeowner will tell you to buy a butyl tape that is easy to install and requires little trimming. A self-adhesive butyl tape that lies directly on the boards requires minimum cuts with little overlap.
- Tape Thickness
When applying flashing tape to your joists and beams, you want to be sure to purchase a tape that is not too thin and not too thick. With thin tape, you risk the long-term durability of the tape. A thick tape can be difficult to install.
- Affordable Price
Protecting your joist and beams should not cost a fortune. As with any item you are buying, cost comparisons alone may not be the right approach to selecting the best joist and beam tape. You need to consider the full cost to protect your deck and that involves not only the price you pay but the quality of the tape as well.
- Reputable Product
There are several different brands of butyl tape on the market. The chart below gives you a comparison and shows why Trex Protect is the leading joist and beam tape available. It comes with a 20-year warranty from Trex, the worlds #1 decking brand.
Deck Flash Barrier
|Vycor Deck Protector||Imus Seal||Pylex Joist Protection|
|Thickness||20 mil||35-40 mil||25 mil||20 mil||25 mil|
|Size of Roll||1-5/8” x 50’
3-1/8” x 50’
|3″ x 75′
|3″ x 75′
|4″ x 75′
6″ x 75′
|1-5/8” x 50’
4” x 50’
6” x 50’
|3” x 72”|
|Price||From $18.75||From $34.95||From $22.19||From $35.95||From $16.99||From $16.22|