Lately, around green social circles, I find it interesting to see the sudden interest in Green Roofs. I'm always asked regarding it's use in the Philippines and it's applicability. Here's my short (promise I'll keep this short) rundown of the pros and cons of implementing green roofs.

• Opportunity to utilize wasted or otherwise unused space;
• Reduces storm water runoff;
• Reduces the heat island effect;
• Reduces airborne toxins;
• Reduces energy costs for the building;
• Longer roof life;
• Reduces noise pollution.

• Could cost more (initial cost);
• At the moment, there are no building regulations in the Philippines that explicitly support the utilization of green roofs. Depending on the approving authority, it may be difficult to procure building permits.
• May limit the architectural expression of the designer. But, in my opinion I see this as an opportunity for the architect to be more creative.