How to repair a tile roof

Answered by Brendan ~ April 23, 2012 ~ No Comments

The tile roof on my daughter's house needs some repairs, because the chinking in the valleys has crumbled and come loose. What is the best way to fix this? Is there a special kind on cement that needs to be used?

John ~ Danville, IL

Brendan Fowler

I will assume that the tiles are not broken and in good shape. So to start, you will need to carefully remove the broken mortar. You can carefully chip it out with a hammer and cold chisel. Once the mortar is removed you can replace it with new mortar. Do this by squishing it up under the tile with gloved hands or even a mason's bag will work for applying the mortar. This is where it starts to get tricky. If the old mortar is tinted, it can be very difficult to match the tinting. If it is grey it will just have to be close enough. I would buy a dry mix roof mortar, just add water. You could also use Type M mortar, but I would stick with the roof specific blend if you can find it. If you are going to try and tint the mortar you will have to just figure it out by trial and error. Be sure to pay very close attention to the proportions so that when you have a good color match you can make it again. This is a very tedious process because you will need to let every sample fully dry before you know what the end result is going to be. Powdered dye is probably going to be your best starting point. Good Luck!

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