Can You Put Decking Over Patio Slabs?
Decking can be a great way to add style and functionality to your outdoor space. But if you're thinking about installing decking over patio slabs, you may be wondering if it's possible. The answer is yes, you can put decking over patio slabs, but there are a few things you need to consider before you start.
1. The condition of the patio slabs
The first thing you need to do is assess the condition of the patio slabs. If the slabs are cracked or uneven, you'll need to repair or replace them before you can install decking. Otherwise, the decking will be unstable and could collapse.
2. The type of decking you use
Not all types of decking are suitable for installing over patio slabs. Some types of decking, such as pressure-treated lumber, can rot if they come into contact with moisture. It's important to choose a type of decking that is resistant to moisture and rot, such as composite decking or cedar.
3. The joist spacing
The joist spacing is the distance between the joists that support the decking. The joist spacing will depend on the type of decking you use and the span of the deck. It's important to follow the manufacturer's recommendations for joist spacing to ensure that the deck is strong and stable.
4. The drainage
It's important to ensure that the deck has adequate drainage to prevent water from pooling and causing the decking to rot. You can do this by installing a drainage system, such as a French drain or a sump pump.
5. The flashing
Flashing is a thin material that is installed around the perimeter of the deck to prevent water from seeping into the cracks between the decking and the patio slabs. Flashing is essential for preventing water damage to the deck.
If you follow these tips, you can successfully install decking over patio slabs. Decking can be a great way to add style and functionality to your outdoor space, and it can last for many years if it's properly installed.
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