I had the opportunity to attend a Green Roof seminar last week. I thought that it would be about something entirely different than what the presentation was about!  My thoughts regarding a "green" roof were like what you most commonly think of when you hear the word "green". Environmentally friendly, Energy Efficient, etc.  Much to my surprise, this was about an actual green roof. A roof that has a garden growing on it. I had never heard of this and found the topic interesting enough to share.

While it seemed a bit pricey up front, the green garden roof will prove to be economical in the long run. The group that gave the lecture was C. Sterling Quality Roofing of Ponte Vedra Florida so I only have an estimate from this one group, but they thought that it would run approximately 20.00 per foot. Compared to a shingle roof, tiled roof, tin/aluminum or other, this seemed quite high but the benefits were outstanding!

For those that are on a small lot, you can actually grow a full fruit and vegetable garden right on top of your roof! No worries that you have a small lot or poor soil, you plant your own on top of your house! How great is that! It is typically done with a flat roof however they are also able to do this with a pitched roof as well. I think that this was just amazing. The plants can be tall, like corn, or short like a ground cover and a mix of both work the best. It is found that peppers, eggplants, tomatoes and all the nightshades do especially well on the roof. You would only want to use Native plants as they reseed themselves and do not need additional water.

The roof is actually lightweight. It will run 8 to 10 pounds to 15 pounds per square foot. It is 130 mph wind resistant and is hurricane and cyclone resistant as well. It is low profile about 3 inches thick. It is energy efficient. It insulaltes well and sound proofs your roof too! It moderates the temperatures throughout the day and night, adjusting with them, and stops humidity within the structure. Your green roof also captures stormwater and provides a habitat for creatures as anoles and tree frogs!

The soil is a specialty soil, like sharp sand, organic matter and leaves. I would advise that you use an expert who is familiar with this as it is not as easy as just putting soil on your roof top! So, if you are looking to build, or just reroof, check this green roof out! Europe has used them for 100's of years and the United States, at least Florida, is now beginning to catch on! Be the first in Saint Augustine to have one and go green with your home! One of the best qualities of this fantastic roof is that it will last........forever!!! Yes, I specifically asked the question and was amazed to hear it. So, something to think  about and fun to grow and enjoy! Green Roofs, the Planet loves them!

 

Diane Grady
GRI, CIPS, REALTOR®
(904) 392-7355
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51 Comments on Is it really a GREEN roof??

20 Most Recent Comments Displayed Show All

AUG
02
2011
452,384 Points 10 Featured Posts Outside Blog Called Shot Master

This would be wonderful in small lot areas where one does not have a large back yard or/and outdoor space. What a great idea...who cuts the grass????

1:35pm • #32
270,432 Points 13 Featured Posts Outside Blog Called Shot Master

Most people think the green roof would weigh too much, but when you think of our concrete tile roofs in Arizona, it may seem easier than you think!  I've read a bit about them and am excited that more and more people are doing it.  The pay-back or life-cycle cost for that roof isn't as far out as one would think.  Great post!  

2:49pm • #33
231,122 Points 1 Featured Post

Am curious what material they use to seal the roof from leaks? Interesting thought and a multitude of questions. Makes me want to look into it. Thanks!

3:13pm • #34

A little creepy for me with the bugs and who knows what lurking in the dirt.  How do you water the grass? When will it leak through the roof?

4:52pm • #35

Interesting post, but you need to be very careful with the math before you attempt such a thing. Typical roofing materials weigh 350 lbs per roofing 'square.' A roofers 'square is 100 square feet. average 1200 square foot roof, the roofing materials weigh 4200 lbs. That's what it's designed for, that is just over 2 tons!

By your calculations of 'light' at 10 lbs per square foot that very same roof now supports 12000 lbs or 6 tons. Three times the design load, not to mention drainage which becomes difficult at best. Water weighs roughly 8 lbs a gallon. Under extreme weather conditions. . . you can see where this ends up.

Unless a building is specifically designed for this type of roofing any alteration to accomodate these types of loads is quite probably cost prohibitive.

Just because its been done, doesn't mean "you" (or I) can do it.  But it's nice to think about.

Bob Kenney

www.IndependentHomeInspectionMD.com

11:01pm • #36
127,843 Points

I have seen them on apartment buildings but not residential homes. It would take the right roof to set these up!

11:28pm • #37
AUG
03
2011
Outside Blog

Bring on the Green! I think it is cool! The Europeans have had it right for a long time! Thanks for the

great blog!  Something new and green!  I love it.

Carefree in Arizona!   Marilyn

12:10am • #38
Outside Blog

There is a company called Sealoflex that manufactures sealants and bases for the planting of roof gardens. Their sealants are sprayed and painted on leaving no joints where leaks are likely to occur. Green is always good provided that the roof is engineered to be able to carry the weight.

12:17am • #39
201,976 Points 2 Featured Posts Called Shot Master

Wow, here in the desert we could do alfalfa, or soybeans, maybe cotton or corn but how does one irrigate?  I want one.

1:45am • #40
3 Featured Posts Outside Blog

Using native plants you do not need much irrigation if any but the expert that I spoke to said that you could use an a/c drip line. Just a thought. The experts you would have to hire to do this would have the answers and there is also a website in one of the posts. Thanks for the comments!

2:01am • #41

Green Roofs for Healthy Cities (www.greenroofs.org) is the green roof and wall industry association in North America and a great resource for information on these technologies.

Jordan Richie, GRP
9:40am • #42
3 Featured Posts Outside Blog

Thank you Jordan. This is great information. I only went to one seminar and have basic knowledge but found it so interesting and really the future for homes down the road. Global warming and more will cause this to become more and more popular. There is so much to learn about it that the resource that you are providing will hopefully answer many of these questions! Thank you for the contribution!

 

9:46am • #43
129,391 Points 4 Featured Posts

Aloha Diane,

Thanks for posting this. It's a great way to add more green in urban areas.

Peace,

3:01pm • #44
Outside Blog

This is wild...im not sure if I would want this on my house lol

6:16pm • #45
AUG
04
2011
1,024,215 Points 15 Featured Posts Localism Sponsor Outside Blog Called Shot Master

It sounds interesting but I would want to see more.  The weight issue concerns me as well as the thought of having a graden starting leaks at some point.

12:31pm • #46

Greensulate has installed a green roof on a home in Palm Springs, a pool house in L.A. and on our CEO's home in Shelter Island NY. Check out this fun piece about the latter: http://www.greensulate.com/pdf/Domino_11_2008.pdf

Savvy cities like Toronto and Copenhagen are actually making green roofs a REQUISITE on new buidlings!

The U.S. has been slow on the uptake on green roofs, but we're making up for lost time - the green roof industry grew over 28% in North America in 2010 alone, up from 16% in 2009....and this during a recession!

Please feel free to shoot me an email if you are interested in learning more! leslie.billera@greensulate.com

Great post - thanks for sharing this information with your community!

 

Leslie Billera
2:11pm • #47
3 Featured Posts Outside Blog

Thank you for the information Leslie. I am elated to see so many people interested in Green Roofs and the environment. I will definitely check out the site. Thank you for sharing this information!

11:28pm • #48
AUG
05
492,317 Points 10 Featured Posts Localism Sponsor Outside Blog Attended Rain Camp Called Shot Master

Was that taken in America?  The concept does have worldwide appeal.  I am trying to read the article but keep thinking about the Chia Pet

10:59pm • #49
797,591 Points 5 Featured Posts Outside Blog Attended Rain Camp Called Shot Master

I find this concept quite appealing. However I have a brown thumb, so I might worry what color my roof ended up as!

11:47pm • #50
390,967 Points 27 Featured Posts Outside Blog Called Shot Master

Diane: I think this is truly a great idea. I've seen a grass roof on a Big Sur house, but not one that has vegetables etc. on it.

11:55pm • #51

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Diane Grady

St Augustine, FL

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Coldwell Banker Premier Properties Saint Augustine, Florida

Address: 661 A1A Beach Blvd., Saint Augustine, Fl, 32080

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