Moss on roof
March 26th, 2018 | by Henri
Q. I am almost certain you have covered this subject before, but we didn’t need information at the time. We
March 26th, 2018 | by Henri
Q. I am almost certain you have covered this subject before, but we didn’t need information at the time. We
September 13th, 2015 | by Henri
Q. Ten years ago we had put fiberglass roofing shingles over the existing shingles. On one section of the roof,
April 9th, 2015 | by Henri
Q. This past year, we noticed black markings coming down the roof. Would you have any idea what is causing
April 15th, 2014 | by Henri
Q. In your advice about algae on a shingled roof, you mentioned to use fresh Clorox bleach. What do you
March 19th, 2014 | by Henri
Q. I have the black algae problem on my roof that you have mentioned on several occasions. I wonder if
December 11th, 2013 | by Henri
Q. The insurance company said we have to get the moss off our shed roof by this coming October. She
September 5th, 2013 | by Henri
Q. I enjoy reading your informative column. The problem I’m having is with fungus on the shingles on the northern
September 5th, 2013 | by Henri
Q. Somewhere on TV, probably in “This Old House”, was a gadget to inhibit the growth of lichens on roofs.
August 15th, 2013 | by Henri
Q. I have noticed over the years that asphalt shingle roofs turn black — sometimes almost across the entire roof
March 4th, 2013 | by Henri
Q. We have black streaks forming from bottom to top of our shingled roof. Mostly shady areas, but sunny also.
February 7th, 2013 | by Henri
Q. Your reply to the person who wanted to remove lichen from a roof raises a question. I have used