green mineral felt is it water proof ?
a builder recently came and put some tourch on green mineral felt on a smell flat roof on my house 1mtr x 3mtr but its leaking is the geen mineral water proof on its own or should he have put an underlay down first as i dont think he did.
Filed under: Home Wind Turbines
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HE SHOULD OF PUT A UNDER-LAYER OF FELT FOR THE TORCH ON GREEN MINERAL TO STICK TO. I WOULD OF USED HOT BITUMEN TO SEAL THE ROOF PROPERLY, WITH TWO LAYERS OF FELT AND GREEN MINERAL FINISH. GET THE COWBOY BACK.