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Granite chippings


Lincolnshire Ian

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1 hour ago, SteamyTea said:

Start by asking at your local builders merchants.

(not sure why you want to cover a flat roof with stones though)

 

Our BM's have them in small bags and stupidly expensive

 

Why cover our flat roof with chippings  @SteamyTea ? We were told that they would keep the roof surface cooler.

But every roof needs maintenance - so you need to walk on it and thus risk puncturing the membrane.  When we asked the builder about maintenance - he said that the roof wouldn't need maintenace.

Yeah , right.

 

And then we asked him how we could re-point the gable wall above the flat roof without pushing the 'grit' through the membrane he went quiet.

We used specialised reflective paint on the surface instead. 

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22 minutes ago, ProDave said:

on mineral felt roofs as a way of protecting them from UV.   

Old felt roofs used to melt in the summer sun. The chippings reflected and absorbed energy, and physically protected it against feet.

It used to be sold with a tiny grip already on it,and that would suffice for a shed. But on a flat roof tiny chippings were spread ...I think onto a bitumen sticky layer.

I think modern felts don't melt.

 

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