Portland Patios, Decks & Railings
Expand your outdoor living space with a lasting, beautiful decking system. Keith Green Construction has researched Portland patios and decks that provide the necessary waterproofing qualities required for the Northwest.
DecTecâ„¢ Vinyl Deck Membrane
by DecTecâ„¢
Keith Green Construction installs the Guardian Series Vinyl Deck Membrane by DecTecâ„¢, offering tough, durable deck protection for your outdoor patios, decks & living spaces.
- 60-mil thick deck membrane withstands 5000 hours of UV weathering tests.
- Comprised of a reinforced PVC decking membrane, providing waterproofing and UV protection.
- DecTecâ„¢ systems are adhered directly onto wood or concrete, sealing the surface from weather damage.
- DecTec’s™ slip-resistant component makes decks safe for children and the elderly.
- Long-lasting, requiring only the simplest of cleaning for maintenance.
- UV-stabilized to prevent fading, as well as anti-microbial to fight off mold and mildew.
- Backed by a 10-year Warranty.

Portland Patio Railing Systems
Augment the beauty of your deck with a waterproof, safe and practical railing system by TimberTech®. Keith Green Construction recognizes the quality in production and longevity of TimberTech’s composite railing, proudly offering it to our clients.Read More
Decking Planks
Expand your outdoor living space with a lasting, beautiful decking system by TimberTech®. Realizing TimberTech’s® waterproofing qualities, Keith Green Construction proudly installs a variety of their composite decking systems.

by TimberTech®
Augment the beauty of your Portland patio or deck with a waterproof, safe and practical railing system by TimberTech®. Keith Green Construction recognizes the quality in production and longevity of TimberTech’s composite railing, proudly offering it to our Portland clients.
- Eliminate the yearly chore of maintaining traditional wood railing systems.
- Made from high-quality raw materials, combined with a protective, UV-inhibiting coating.
- Color is maintained despite the harshest weathering.
- Coating pigment reflects excess heat, helping the railing system resist fading and warping.
- Safety first: TimberTech® Railing Systems resist splinting and slipping: perfect for children and the elderly.
- Find the perfect rail to match your deck: Ornamental Rail, RadianceRail, Curved Rail, BuilderBoard, and BuilderRail systems available.
- Backed by a Limited 25-year Warranty.
Expand your outdoor living space with a lasting, beautiful decking system. Keith Green Construction has researched Portland patios and decks that provide the necessary waterproofing qualities required for the Northwest.
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DecTecâ„¢ Vinyl Deck Membrane
Keith Green Construction installs the Guardian Series Vinyl Deck Membrane by DecTecâ„¢, offering tough, durable deck protection for your outdoor living spaces.