Does composite decking need maintenance?
It's true that many composite decking options require very little maintenance but they do need basic cleaning in order to keep them looking presentable No, you don't need to repaint or reseal composite decking, and it is very resistant to rot, however, it's a good idea to sweep them clean weekly in order to prevent the growth of mold and lichen.
Is composite decking slippery when wet?
Composite decks are not slippery even when there is water on the surface. The problem, however, is when there is an accumulation of both ice and water on your composite decking. Aside from being the cause of accidents, ice, and the removal of it, can cause some damage to your patio. Non-anti slippery composite decking.
Is composite wood waterproof?
Composite decking does not absorb water. When moisture gets trapped under the decking and on top of the wood joists, it stays there and keeps it from drying properly. Homeowners who are looking for waterproof composite decking materials should look for those that have special features.
Why is composite wood so expensive?
Most composite decks are manufactured from the by-products of wood such as wood chips, sawdust, and recycled plastic materials.
This unique combination makes composite decks expensive than other types of decking material.
How much does composite wood cost?
Averaging between $3.50 and $6.00 per linear foot, the cost of installing a high-quality composite deck will certainly be higher than building with traditional pressure treated lumber, which can cost between $5.00 - $7.00 per (8') board.
What are the disadvantages of composite decking?
A pricey alternative to wood. Durability comes at a cost, as composite decking is more expensive than wood.
Composites aren't natural.
Composite decks aren't completely maintenance free.
You'll need to comparison shop.
Cons of Composite Decking
What are the problems with composite decking?
One of the most common complaints about composite decking is mold. Decking that is in shaded area or areas that tend to get wet frequently have been shown to grow mold and stain the deck. This is not restricted to composite decking. Wood decking can grow mold, mildew and algae.
How long do Composite decks last?
Composite decking can last over 20 years with the proper care and maintenance. Composite holds up better under hot or cold weather shifts. Composite is resistant to rot, mold, and termites, which can take their toll on wood decking materials. Composite does not require as much upkeep as wood.
20 years
  • Why is composite wood so expensive?
  • How much does composite wood cost?
  • What are the disadvantages of composite decking? Cons of Composite Decking
  • What are the problems with composite decking?
  • How long do Composite decks last? 20 years
Leaving a slight overhang is a common practice in deck building. Overhanging is letting the […]

Leaving a slight overhang is a common practice in deck building. Overhanging is letting the […]

Leaving a slight overhang is a common practice in deck building. Overhanging is letting the boards extend past the decking frame. Letting your deck overhang has both advantages and disadvantages. Many builders design wood decks to overhang, but can you do it on composite decking as well? What are the benefits and drawbacks of overhanging? And how much overhang should your deck have? 

Can Composite Decks Overhang?

Like any other deck, you can design composite decks to have an overhang. However, it should be a part of your deck planning and layout design. You can create overhang using several methods. For instance, after installing the decking boards, you may opt to leave a few inches off the boards. Another alternative is to set up picture framing, leaving a slight extension. In any case, you will need to include it in your decking plan design. 

How Much Can a Composite Deck Overhang

While it is a common practice in construction, many still wonder how much a deck can extend over the edge. The answer, however, is far from simple. Several factors determine how much you can overhang a deck. 

First of all, you will need to consult your local building regulations when it comes to overhangs. There may be a specific instruction or requirement depending on the area where you live. However, in some cases, there is no such specific regulation. What then? The rest is up to the manufacturers’ instructions or guidelines. The manufacturers may also test their products to see how much their boards can overhang. Some brands may use third-party inspectors for testing. Once testing is done, they can release information regarding their decking products. For instance, Trex recommends 102mm of maximum allowable overhang for their decking boards. 

When there are no clear instructions from the local building regulations or the boards’ manufacturers, there are other ways to determine maximum overhang. As a general rule of thumb, it should not exceed 1/3rd of the boards’ width. For decking boards, it ranges from 1/4″ to 1 3/4″ inch. If you plan to picture frame your deck, many recommend an inch of overhang. 

For composites, many consider 1 1/2″ as the ideal measurement. However, composites don’t have as much tensile strength as lumber. For this reason, many leave only 1 inch of overhang or flush the decking boards entirely. If you plan to install fascia boards, you can overhang the decking boards by 1 3/4 to 2 3/4 inches before attaching the fascia boards.

Benefits of Overhang

As mentioned, there are several benefits of overhanging your decking boards as opposed to flushing them. One of the main reasons why many extend their decks over the subframe is due to aesthetics. It drastically improves the appearance of your composite deck. It also slightly hides the outer joist of the deck. For elevated decks with stairs, overhangs also create a flawless transition between the stair nosing and the decking boards. 

Another crucial reason to overhang is to protect your substructure from moisture. If you have a wooden frame, water damage is one of the biggest concerns. Extending the decking boards past the edges help redirect water from rain, snow, or spillage away from your deck frame. In doing so, you can maintain your deck’s structural integrity, making it last longer. 

Disadvantages of Overhang

While there are several advantages of overhanging your decking boards, there are also a few disadvantages that you may need to consider. For instance, composite decking boards may leave unsightly and unappealing end cuts. Producing cleaner and smoother cuts on composites may prove difficult without the right tools. 

Another issue is that the cut ends of composites may be susceptible to several problems. While composites are water-resistant, these cut ends may not. The exposed ends can absorb moisture, causing the decking boards to warp or increase mould growth. Not only are the decking boards affected, but the frame as well. 

If you intend to overhang your decking boards, there are some ways you can do to bypass these disadvantages. For instance, you can use sealants and end caps to protect the cut ends. Not only will this hide the unsightly or rough edges, but it will also shield the boards from moisture. 

Should You Overhang Your Composite Decking?

You can overhang a composite deck, and it improves the deck’s appearance. Besides aesthetics, it can also help prevent moisture damage and protect the decking boards and the subframe. However, you will want to check in with your local building regulations and manufacturers’ manuals on instructions regarding overhang. In general, it should not exceed 1/3 of the width of the boards to ensure safety. 


Read full article on Ultra decking


Not All Synthetic Decking Is "Composite".
Not All Building Codes Allow Composite Decking.
Composite Lumber Is Not Just Decking.
Composite Lumber Can Be Expensive.
Higher-Quality Products Look More Like Wood.
Composites Can Be Slippery When Wet.