Compared to unsightly weather beaten asphalt shingles and their replacement costs concrete roof tiles offer an affordable and economical alternative especially when considering their life cycle cost.
Porous concrete roof tiles.
Porous roof tiles are more dangerous to walk on as they are more likely to break the leaking water can cause damage to your home and the mould that forms due to roof leaks can present health concerns.
The porosity of concrete roof tiles measured under laboratory conditions is usually less than 10.
Porous roof tiles collect dirt.
But you can rest easy because it s all a myth concrete roof tiles don t become porous.
Given that porous roof tiles are weaker than tiles that aren t suffering from the same issue it means they can also present a danger.
In practice the absorption of water by capillary action during periods of heavy rain would increase their weight by only 5.
Just like the pores on a human face the porous roof tiles may collect all kinds of dirt in the holes and cracks.
Although this concerns mainly the looks of your roof in the long run this may result in the enlargement of these currently very small holes.
Understandably when you re dealing with a concrete roof this is a big concern because they are so exposed to the elements the last thing you want to happen is to have your concrete tiles fall off your roof.
For those who don t know porous in this case means the concrete roof tiles will let water through.
Here are some of the risks concerning porous tiles.
Concrete tiles have grown more competitive in price due in part to the rising costs of petroleumbased products such as asphalt shingles.