[Greenbuilding] Paint a tar roof?

[John Salmen]

Careful what you wish for – freak snowfall took out my  office and shop and it was insured but never enough.

 

The two figures in my head are that a white reflective surface roof would be about 10 degree difference and/or about a 40% reduction in cooling costs. Those are anecdotal figures in my head from god knows where and I’m not sure how they correlate - reflectivity (emission stuff) could increase that. Aluminized tarps would function quite well – I do ski patrol and one of the ubiquitous items is thermal blankets (available at the dollar store in bulk) – but I think one sized white or thermal tarp would be more practical.

 

From: Greenbuilding [mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of Benjamin Pratt
Sent: June-07-15 4:58 PM
To: Green Building
Subject: Re: [Greenbuilding] Paint a tar roof?

 

Thanks for the ideas. Around here, I only see tarps in silver, blue, or green, but it seems like a good idea. Do you think any of these things will keep the garage cooler?

   I don't want to put money into the garage. It is a very poor structure. I sometimes wish for a freak tornado or something to take it out--but not the house or anything in the garage. If I ever can afford it , I'd love to build a new one.




 

b e n j a m i n p r a t t


professor art+design

the university of wisconsin stout

 

On Sun, Jun 7, 2015 at 6:00 PM, Michael O'Brien <obrien at hevanet.com> wrote:

Hi, Ben--

 

Paint may improve reflectivity but not emissivity of asphalt, so it will still get hot. 

Best, Mike

Sent from my iPhone


On Jun 7, 2015, at 1:03 PM, Benjamin Pratt <benjamin.g.pratt at gmail.com> wrote:

My garage has an almost flat black tar roof. It gets really hot in the summer, but I need to work in there, I know I can buy a silver coating and there is a white coating (but it says it won't work where the water puddles),  What about painting it? Would regular oil based or water based paint work? I believe I can get free paint at the recycling center. 

Anyone tried it? I googled it and haven't found much.  It looks like the paint that accidentally spilled on the roof is holding up just fine...

Ben


 

b e n j a m i n p r a t t


professor art+design

the university of wisconsin stout

 

On Tue, Jun 2, 2015 at 12:32 PM, Erin Rasmussen <erin at trmiles.com> wrote:

So this is neat, and seems like something all y'all maybe interested in:

 

New natural wood fungicide that can be used safely on the inside of buildings. 

More at the Forest Products Lab web site:

http://www.fpl.fs.fed.us/labnotes/?p=24802

 

 

Erin Rasmussen

 

TR Miles Technical Consultants Inc.   http://www.trmiles.com/

and BioEnergy Discussion Lists   http://www.bioenergylists.org/

erin at trmiles.com

 

 


_______________________________________________
Greenbuilding mailing list
to Send a Message to the list, use the email address
Greenbuilding at bioenergylists.org

to UNSUBSCRIBE or Change your List Settings use the web page
http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org

 

_______________________________________________
Greenbuilding mailing list
to Send a Message to the list, use the email address
Greenbuilding at bioenergylists.org

to UNSUBSCRIBE or Change your List Settings use the web page
http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org


_______________________________________________
Greenbuilding mailing list
to Send a Message to the list, use the email address
Greenbuilding at bioenergylists.org

to UNSUBSCRIBE or Change your List Settings use the web page
http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/greenbuilding_lists.bioenergylists.org/attachments/20150607/238fbe4b/attachment.html>