Hello,
Lots of rain this weekend - good for discovering some leaks in my shed roof I didn't know were there!
I have corrugated bitumen sheets which are pitched at about 35 degrees up against a stone wall of a two storey building. There is a cement fillet along the seam where the roof joins the wall. It's been waterproof until now, but the torrential rain this weekend resulted in water pouring down the inside wall of the shed.
What can be done to seal this joint properly? I've read about liquid rubber type sealants, but are they flexible enough - are they durable? Is ordinary bitumen paint better, or should I get some of that sticky flashing tape?
Any advice appreciated,
Robin.