Legends Roofing Blog

Installation of concrete roofing tiles

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When using concrete tiles to do a re-roof, there are a couple things that need to be addressed.

1. Before you start demoing, if you have existing concrete tiles you are removing, make sure you have enough dumpsters to dispose of the tiles. The dumpsters can hold a certain amount of weight, so verify the weight each dumpster can hold with the weight of the concrete tiles.  

2. Concrete tiles are significantly more heavy than any other type of shingle. You have to make sure that the framing and decking you have can support the heavy concrete tile. If you are worried about whether or not your roofing structure can hold the concrete tiles, you can hire a structural engineer. You don't want this to happen to your roof...

3. You have to make sure that whatever was used on the roof previously (asphalt shingle, wood shakes, etc...) is removed. You need a clean surface to place the battens on so that they lay level. The concrete tiles are nailed onto the battens. Each concrete tile locks in with the adjacent tile, forming a solid union. If you try to place battens over existing shingles, they can make the surface uneven, causing the battens to be uneven. This prevents the concrete tiles from being able to lock together correctly. Below is an example of how the concrete interlocks.