How hot is too hot to walk on or work on a roof?
Direct sun and 80 degrees and above can make shingles more delicate. You can walk on the roof when it's hotter but be careful. Walk gingerly. Don't twist your feet back and forth. In heat, the shingles get soft and damage, scuff, scar more easily. The hotter it gets, the easier it is to damage them.
When roofers roof in hot weather, they should put plywood scraps where they are installing so the new shingles don't get damaged. Move the plywood scraps as you progress on the roof. I used to make a plywood scrap trail from the ladder to the work area and rearrange as necessary. Just takes a minute.
Also if painters or chimney sweeps are on your roof in hot weather, have them put plywood scraps on the shingles by where they are working.
On new construction, you see damaged shingles all the time because the builders always want to get the roof on ASAP so they can begin the interior work. Problem is that the siding and painting and windows and gutters aren't done, so all those trades will be walking on and scuffing the new shingles. It's very common.
How cold is too cold to walk on or work on a roof?
Do it anytime as long as no ice is on the roof.You can walk on frozen shingles, but you can't work with them. Frozen shingles don't cooperate. Too brittle and rigid.
How often should zinc be applied to prevent moss growth?
If you live in a damp climate such as the Pacific Northwest, apply zinc at least once a year; or apply zinc every other or every third time if you perform quarterly gutter and roof maintenance (see next question).
How often should gutter and roof clean-off be performed (gutter and roof maintenance)?
It's a good idea to blow leaves, pine or fir needles, and other debris off the roof and clean out gutters on a quarterly schedule. While you're up on the roof, you also can apply zinc to discourage moss growth (see previous question).
How should downspouts be configured to prevent water from seeping into the foundation?
It's a good idea to divert the water from gutter downspouts out to the yard instead of down into wells right next to your foundation. This will help prevent water from seeping into your foundation.
» See our FAQs page for more roofing questions and answers.