Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: will this work with a cedar shake roof??
Document: I had to first get a broom and brush them off, then blow it off, then brush some more and then one more blowing. The things were stuck to the screens and the roof quite well and was a solid mat. This stuff would never have blown off over time. I uploaded the before and after pictures of my cleaning fun.For leaves, these things work great as there wasn't a single one on the roof, for Oak Catkins not so good.
The gutter guards were delivered on time. I started putting them on the same day they arrived and completed the next day. I put them on after work, so only a couple of hours were needed for total install time. As luck would have it, rain pounded our area the next day. There was a roof load of pine needles on the roof. When I got home from work I had a nice line of pine needles on the ground; not in my gutters!!
Highly recommend. After much research and thought I've installed these on my house and they simply make sense and work. They make sense in that they generally follow the downward slope of the roof (i.e. go under the shingles), thus debris simply continues onward down the slope (a key difference from others I tried that sit more flatly across the gutter top...thus creating a flat "stop" for falling debris).
They were a little harder to install than the video showed. I found that a long wide putty knife underneath the mesh helped work the edge under the shingles. I also like how the mesh is angled close to the slope of the roof so as to shed debris. Some products sit flat on the gutter which would just pile the stuff from a large Maple tree on top. My only remaining concern is how the guards will work next winter in the snow and ice of Nebraska.
I installed the Leafs Out system on my house, it seems like its going to work great. I installed it under shingles and two days later got a metal roof put on top of the shingles. The metal is really holding it down even stronger now. If any of it ever gets damaged it is going to be a real pain trying to put another piece of guard under the new roof. It is kind of time consuming to install but all in all it is worth the time and effort.
The mesh material is good and the holes are small which is what I needed to keep small cedar seeds out. (They form a type of &#34;mud&#34; )Bottom line, performance has been good despite difficult and frustrating installation.
twigs etc do not get caught). Good quality, good price, easy to install and they work.
I have to say, I'm highly impressed with this product. An afternoon's worth of work saved me about $7,500 from the contractor option! I'm recommending it to all my friends and family.
Looks and feels like a quality gutter screen that will really work, and priced right. Simple installation. Just like the manufacturer's video on YouTube, no surprises. I installed it myself on my first-floor gutters and hired a handyman to go up to the second-story to finish the installation. It looks good.
Wear goggles.And got a heavy duty scraper ... "ProStainless"  ... at Sherwin Williams and use that for prying up and getting under the shingles.Sheet metal cutters work around to trim the ends of each gutter guard to "weave" the ends together. Goop or Shoe Goo closes up any remaining openings where my cutter-work was inept.
Answer: yes