Proper installation of chimney flashing starts off at the bottom from the chimney by using a base flashing masking up the final exposed row of shingles on the roof and lengthening up the bricks. In 1895, John D. Sanderson was Doing work to be a shingler and lather for one https://kanata-roofing57799.bloggazza.com/30963186/jorgensen-roofing-secrets