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Waterproof Or Permeable Cement Paving – Which Is Better?

August 25, 2012

In the past, waterproof concrete paving was in fact a very popular option for patios, driveways and pathways because, not only does waterproofing stop salt and chlorinated water from penetrating paving blocks, it also assists them to maintain their original color. Today, however, another sort of concrete paving is coming to the forefront that is ordinarily called ‘permeable paving’.
 
Whilst both have their advantages, permeable paving is undoubtedly the more environmentally-friendly of the two kinds. On the other hand, it is comprehensible that folks might want to keep their outdoor paved areas appearing fresh and new as long as possible, especially where the paving stones are colored. Although cement pavers are naturally extremely durable, the harsh South African sunlight takes its toll over the years, rendering even the brightest colors look dull and drab.
 
Furthermore, occasionally you actually want the paving stones to be water-resistant. Like, for example, when they’re situated around swimming pools and water features. When it comes to swimming pools particularly, in which the water is chlorinated, it usually is vital to lay down water-resistant pavers. Salt-chlorinated pools may also affect certain types of paving stones adversely as the salt deposits created after water splashes have evaporated can actually ‘eat’ away at them.
 
On the subject of other outside areas surrounding your home, though, it really is a good idea to think about using permeable paving stones because the water-resistant alternative is not particularly environmentally-friendly. Unlike permeable pavers, waterproof paving blocks aren’t porous which means water can’t filter through them into the ground below and consequently re-supply the water table. With the latter there tends to be a more substantial run-off that disappears into the h2o drainage system as opposed to into the soil.
 
There are 2 main types of permeable paving stones, those that have a hole in the centre and those that are solid but designed in such a manner as to reduce run-off while simultaneously enabling drainage. The hollow, or ‘grass blocks’ as they’re sometimes called, are not only environmentally-friendly in that they assist in the re-absorption of water into the ground and also prevent soil erosion, they are also very appealing in appearance. Grass planted in the holes in the centres of pavers such as this will deliver both a natural-looking grassy driveway and a firm surface on which to park your car. Do be aware, though, that if you have a substrate underneath your permeable paving that does not permit water and air to pass through it then the positive effects of having used permeable pavers to begin with are cancelled out.
 
In the end, your decision to make use of either waterproof or permeable paving stones is dependent upon the purpose of the outside area that is being paved. As we have talked about in the paragraphs above, permeable pavers are of course a fantastic choice because they are so eco-friendly. Nevertheless, there could be areas such as the ones surrounding swimming pools when waterproof paving is more appropriate hence it’s wise to first look at the requirements and constraints of the spot you would like to pave before you rush out and buy pavers.
 
For more information on www.bosun.co.za please visit our site

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