[Greenbuilding] Whitewash for roofs?

JOHN SALMEN terrain at shaw.ca
Mon Aug 8 21:41:43 CDT 2011


There is a link somewhere on builditsolar.com for someone that did it.  Don’t see any reason why it wouldn’t bind as there is a granular base. Roofs are whitewashed regularly in large parts of the world. Will need to be renewed periodically but should extend the life of the roof dramatically.

 

From: greenbuilding-bounces at lists.bioenergylists.org [mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of Bob Waldrop
Sent: August-08-11 11:31 AM
To: Green Building
Subject: [Greenbuilding] Whitewash for roofs?

 

I was in a meeting the other day and someone asked me about the utility of white-washing roofs with traditional whitewash solutions.  Here’s basic info from wikipedia on the subject.  http://en.wikipedia.org/wiki/Whitewash .  The goal of course is to achieve the energy savings available from white roofs at a lower cost than conventional paints, even though it would have to be reapplied every few years.  I was wondering if anyone had had any actual experience with this.  I’m wondering how whitewash would adhere to asphalt shingles.  If this would work, it could be a boon to low income communities everywhere.

 

Bob Waldrop, Oklahoma City

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