11 ways to a faster, more accurate green roof or green wall quote!

So you've decided to get a green roof or green wall. And you need a quote. Fast, you want this project done in a couple of weeks. Here are the questions that you need to ask yourself. The answers will go a long way towards helping the prospective designer/installer generate an accurate quote. This is even more important if he/she doesn't have time to view the prospective work site, be it rooftop or wall:

1. What kind of green roof or green wall are you interested in? 
2. Why are you interested in that type of green roof or green wall?
3. What is the height of the roof from the ground or how high will the green wall reach?
4. What is the square footage of the surface to be greened?
5. What is the shape of the surface to be greened? Is it just a flat square or rectangle? If it's a roof how many vents, pipes, odd corners will need to be considered?
6. What type of plants might you be interested in?
7. Is the roof or wall easy to get to? Describe the access.
8. The dead load of the roof is...?
9. Is there a place to put materials when the roof (or wall) is being installed?
10. Do you know what type of water proofing membrane is up there already?
11. Is the roof or wall heavily shaded? Very sunny? Very windy?