Get started
Sign In
EDUCATION HUB
Online courses
For homeowners
For professionals
Special offers
INFORMATION
Satisfaction policy
Frequently asked questions
BUILDING GUIDE
ASK THE EXPERTS
Planning and Design Questions
Foundation and Basement Questions
Wall and Roof Questions
Mechanical Systems Questions
Interior Finishing Questions
Exterior Finishing Questions
LATEST SUSTAINABILITY NEWS
Policy and Building Code News
Products and Materials News
Design News
Climate Change News
Renewable Energy News
Urban Planning News
Energy Efficiency News
Transportation News
Health and Well-being News
Architecture News
LEED Certification News
Planning and Design
Lifestyle, location and commuting
Grants and incentives
Mortgage financing and taxation
Building codes
Green building certifications
Concept and design
Off-grid and Net-Zero Housing
Materials and resources
Architecture and plan design
How to Find Qualified Green Building Professionals
Healthy indoor air quality
Waste management
Real estate
Foundations and Basements
Excavation
Radon in Homes - Mitigation
New foundations and slab-on-grade
Foundation and basement improvements
Waterproofing and drainage
Walls and Roofs
Wall assemblies - new construction
Wall assemblies - renovation
Air and vapour barriers
Insulation and soundproofing
Windows and doors
Roof assemblies - new construction
Roof assemblies - renovation
Roof coverings
Exterior cladding
Pest control
Mechanical systems
Heating and cooling
Ventilation
Plumbing and water heaters
Electricity
Renewable energy
Interiors
Walls and ceilings - interior surfaces
Flooring and stairs
Paints, finishes and natural coatings
Doors and trim
Kitchens
Bathrooms
Basement finishing
Interior design and furnishing
Cleaning and maintenance
Recycling and composting
Exteriors
Decks, porches and gazebos
Permeable laneways and patios
Landscaping
Rainwater Collection & Watering
Rainwater harvesting
Food production
Natural swimming pools and ponds
Greenhouses and Sunrooms / Solariums
FIND INSPIRATION
Project photos
Find ideas for sustainable & beautiful home renovations & building green homes
Green home projects
See sustainable homes that Ecohome has showcased over the last few years
Prefab kit eco homes
Find Net Zero prefab LEED & Passive House ready kit homes for sale
Green homes for sale
Sustainable homes for sale, green certified to LEED, Passive House or Zero Net Energy (ZNE)
Net Zero Energy Homes - Case Study
Showcasing a pilot project of 35 Net Zero Energy Ready homes built in 2021 in a cold climate
FIND PROFESSIONALS
FIND PRODUCTS
Find building materials tagged with Twinet
---------
Radon - Mitigation Products & Membranes
Insulated Slab-on-Grade Foundations
Insulated Concrete Forms - ICF Blocks
Cement - Concrete
Foundation Drainage Solutions
Lumber
Mass Timber & Engineered Wood (CLT)
Roof Trusses
Floor Joists
OSB, Chipboard & Particleboard
Plywood Boards
Structural Insulated Panels (SIPS)
Prefabricated Walls
Alternative Structure Components
Construction Tools
Cellulose
Hemp
Wood Fiber
Insulation - Straw
Mineral Wool
Insulation - Glass Wool
Expanded Polystyrene
Extruded Polystyrene
Soundproofing
Other
Vapor Barrier & Vapor Retarder
Air Barrier & Rainscreen
Waterproofing
Fire Protection
Sealants, Caulking & Jointing
Adhesives
Windows & Glazing
Exterior Doors
Garage Doors
Solar Tube Skylight
Skylights
Low Emissivity Window Films
Roller Shutter & Blinds
Living Green Roofs
Metal Roofing
Roofing Shingles
Vents & Attic Ventilation
Gutters and Soffits
Wood Siding
Brick & Stone Cladding
Metal Siding
Exterior Stucco
Heat Pumps
Electric Heaters
Radiators - Heaters
Radiant Heated Floors - Radiant Ceilings
Pellet Stoves & Furnaces
Hot Water Boilers
Wood & Biomass Fireplaces & Stoves
Gas Fireplaces & Stoves
Heating System Accessories
Air Conditioning
Ventilation Fans
Heat Recovery Ventilators & Energy Recovery Ventilators
Air Purifiers
Wastewater & Sewage Treatment
Water Heaters with Tank
Greywater Treatment & Recovery
Toilets
Heat Pump Water Heaters
Tankless Water Heaters
Faucets & Showerheads
Water Purifiers - Filtration & Treatment
Smart Homes
Energy Saving Light Bulbs
Electromagnetic Protection
Lighting - Controls & Automation
Exterior Lighting
Thermostats - Automation - Smart Homes
Electrical Appliances
Solar Water Heaters
Geothermal Heating Systems
Drywall
Flooring
Ceramic Tiles
Wood Boards & Panels
Surface Laminates & Finishes
Interior Doors
Stairs & Ramps
Wood Mouldings
Wardrobes & Closets
Kitchen Cabinets
Countertops & Sinks
Hardware
Paints & Primers
Natural Coatings & Stucco
Paint Strippers
Wood Treatments
Varnish
Natural Finishing Oils
Concrete Finishes
Sealers for Stone & Ceramic
Dyes & Colors
Cleaners
Furniture
Lamps & Lighting
Decorative Fireplaces
Textiles
Garages & Sheds
Pergolas, Gazebos & Decks
Decking Materials
Exterior Wood Finishes
Permeable Concrete
Pavers & Stones
Fencing
Borders & Walls
Gabion Cage Retaining Walls
Awnings, Sunshades & Porches
Garden Furniture
Groundcover Plants
Plants
Greenhouses
Canada
United Kingdom (UK)
United States (USA)
Alabama, United States (USA)
Alaska, United States (USA)
Alberta, Canada
American Samoa, United States (USA)
Arizona, United States (USA)
Arkansas, United States (USA)
British Columbia, Canada
California, United States (USA)
Colorado, United States (USA)
Connecticut, United States (USA)
Delaware, United States (USA)
District of Columbia, United States (USA)
England, United Kingdom (UK)
Florida, United States (USA)
Georgia, United States (USA)
Hawaii, United States (USA)
Idaho, United States (USA)
Illinois, United States (USA)
Indiana, United States (USA)
Iowa, United States (USA)
Kansas, United States (USA)
Kentucky, United States (USA)
Louisiana, United States (USA)
Maine, United States (USA)
Manitoba, Canada
Marshall Islands, United States (USA)
Maryland, United States (USA)
Massachusetts, United States (USA)
Michigan, United States (USA)
Minnesota, United States (USA)
Mississippi, United States (USA)
Missouri, United States (USA)
Montana, United States (USA)
Nebraska, United States (USA)
Nevada, United States (USA)
New Brunswick, Canada
New Hampshire, United States (USA)
New Jersey, United States (USA)
New Mexico, United States (USA)
New York, United States (USA)
Newfoundland and Labrador, Canada
North Carolina, United States (USA)
North Dakota, United States (USA)
Northern Ireland, United Kingdom (UK)
Northern Mariana Islands, United States (USA)
Northwest Territories, Canada
Nova Scotia, Canada
Nunavut, Canada
Ohio, United States (USA)
Oklahoma, United States (USA)
Ontario, Canada
Oregon, United States (USA)
Pennsylvania, United States (USA)
Prince Edward Island, Canada
Quebec, Canada
Rhode Island, United States (USA)
Saskatchewan, Canada
Scotland, United Kingdom (UK)
South Carolina, United States (USA)
South Dakota, United States (USA)
Tennessee, United States (USA)
Texas, United States (USA)
U.S. Virgin Islands, United States (USA)
Utah, United States (USA)
Vermont, United States (USA)
Virginia, United States (USA)
Wales, United Kingdom (UK)
Washington, United States (USA)
West Virginia, United States (USA)
Wisconsin, United States (USA)
Wyoming, United States (USA)
Yukon, Canada
Abbotsford - Chilliwack - Fraser valley, British Columbia, Canada
Abilene, Texas, United States (USA)
Abitibi-Témiscamingue, Quebec, Canada
Akron - Canton, Ohio, United States (USA)
Albany-Schenectady, New York, United States (USA)
Albuquerque - Santa Fe, New Mexico, United States (USA)
Alexandria, Louisiana, United States (USA)
Allentown - Bethlehem - Easton, Pennsylvania, United States (USA)
Altoona, Pennsylvania, United States (USA)
Amarillo, Texas, United States (USA)
Anchorage, Alaska, United States (USA)
Annapolis, Maryland, United States (USA)
Anniston - Gadsden, Alabama, United States (USA)
Appleton - Green Bay, Wisconsin, United States (USA)
Asheville, North Carolina, United States (USA)
Atlanta, Georgia, United States (USA)
Auburn, Alabama, United States (USA)
Augusta, Georgia, United States (USA)
Augusta - Waterville, Maine, United States (USA)
Austin, Texas, United States (USA)
Bakersfield, California, United States (USA)
Baltimore - Columbia - Towson, Maryland, United States (USA)
Bangor, Maine, United States (USA)
Barrie, Ontario, Canada
Bathurst - Miramichi, New Brunswick, Canada
Baton Rouge, Louisiana, United States (USA)
Beaumont - Port Arthur, Texas, United States (USA)
Beckley, West Virginia, United States (USA)
Belleville - Quinte West, Ontario, Canada
Bellingham, Washington, United States (USA)
Bend, Oregon, United States (USA)
Billings, Montana, United States (USA)
Binghamton, New York, United States (USA)
Birmingham, Alabama, United States (USA)
Bismarck - Minot, North Dakota, United States (USA)
Bloomsburg - Berwick - Sunbury, Pennsylvania, United States (USA)
Boise - Idaho Falls, Idaho, United States (USA)
Boone, North Carolina, United States (USA)
Boston, Massachusetts, United States (USA)
Bowling Green, Kentucky, United States (USA)
Bozeman, Montana, United States (USA)
Brainerd - Bemidji, Minnesota, United States (USA)
Brandon Area, Manitoba, Canada
Bridgeport - New Haven - Stamford, Connecticut, United States (USA)
Brunswick, Georgia, United States (USA)
Buffalo-Cheektowaga-Olean, New York, United States (USA)
Burlington, Vermont, United States (USA)
Calgary, Alberta, Canada
Camden, New Jersey, United States (USA)
Cape Girardeau, Missouri, United States (USA)
Cedar Rapids - Davenport - Waterloo, Iowa, United States (USA)
Charleston, South Carolina, United States (USA)
Charleston - Huntington - Ashland, West Virginia, United States (USA)
Charlotte, North Carolina, United States (USA)
Charlottesville, Virginia, United States (USA)
Charlottetown - Summerside, Prince Edward Island, Canada
Chatham-Kent, Ontario, Canada
Chattanooga, Tennessee, United States (USA)
Cheyenne - Laramie, Wyoming, United States (USA)
Chicago, Illinois, United States (USA)
Chico, California, United States (USA)
Cincinnati, Ohio, United States (USA)
Clarksville, Tennessee, United States (USA)
Cleveland, Ohio, United States (USA)
Coeur d'Alene - Lewiston, Idaho, United States (USA)
College Station - Bryan, Texas, United States (USA)
Colorado Springs, Colorado, United States (USA)
Columbia, South Carolina, United States (USA)
Columbia - Jefferson City, Missouri, United States (USA)
Columbus, Georgia, United States (USA)
Columbus, Ohio, United States (USA)
Cookeville, Tennessee, United States (USA)
Cornwall, Ontario, Canada
Corpus Christi, Texas, United States (USA)
Côte-Nord, Quebec, Canada
Courtenay - Campbell River, British Columbia, Canada
Covington - Florence - Fort Thomas, Kentucky, United States (USA)
Dallas - Fort Worth, Texas, United States (USA)
Danville, Virginia, United States (USA)
Dayton - Springfield, Ohio, United States (USA)
Daytona Beach - Palm Coast, Florida, United States (USA)
Denver - Boulder, Colorado, United States (USA)
Des Moines, Iowa, United States (USA)
Detroit, Michigan, United States (USA)
Dothan, Alabama, United States (USA)
Dover, Delaware, United States (USA)
Dover - Rochester, New Hampshire, United States (USA)
Drummondville (Centre-du-Québec), Quebec, Canada
Duluth, Minnesota, United States (USA)
Eastern Shore, Maryland, United States (USA)
Eau Claire, Wisconsin, United States (USA)
Edmonton, Alberta, Canada
El Centro (Imperial County), California, United States (USA)
El Paso, Texas, United States (USA)
Elmira-Corning, New York, United States (USA)
Erie - Meadville, Pennsylvania, United States (USA)
Eugene, Oregon, United States (USA)
Eureka (Humboldt County), California, United States (USA)
Evansville, Indiana, United States (USA)
Fairbanks, Alaska, United States (USA)
Fairfax - Arlington - Alexandria, Virginia, United States (USA)
Fargo, North Dakota, United States (USA)
Farmington - Gallup, New Mexico, United States (USA)
Fayetteville, Arkansas, United States (USA)
Fayetteville, North Carolina, United States (USA)
Flagstaff - Sedona, Arizona, United States (USA)
Florence, South Carolina, United States (USA)
Florence, Alabama, United States (USA)
Fort Smith, Arkansas, United States (USA)
Fort Wayne - South Bend, Indiana, United States (USA)
Frederick, Maryland, United States (USA)
Fredericton, New Brunswick, Canada
Fresno - Madera - Hanford, California, United States (USA)
Ft. McMurray, Alberta, Canada
Gaspésie - Îles-de-la-Madeleine, Quebec, Canada
Gatineau (Outaouais), Quebec, Canada
Georgetown, Delaware, United States (USA)
Granby - Bromont - Cowansville, Quebec, Canada
Grand Forks, North Dakota, United States (USA)
Grand Island - Kearney - Hastings, Nebraska, United States (USA)
Grand Junction, Colorado, United States (USA)
Grand Rapids, Michigan, United States (USA)
Grande Prairie, Alberta, Canada
Greater Los Angeles Area, California, United States (USA)
Greeley - Fort Collins, Colorado, United States (USA)
Greensboro - Winston-Salem, North Carolina, United States (USA)
Greenville - Kinston - Washington, North Carolina, United States (USA)
Greenville - Spartanburg - Anderson, South Carolina, United States (USA)
Gulfport - Hattiesburg, Mississippi, United States (USA)
Hagerstown - Cumberland, Maryland, United States (USA)
Halifax, Nova Scotia, Canada
Hamilton - Burlington, Ontario, Canada
Harrisonburg, Virginia, United States (USA)
Hartford, Connecticut, United States (USA)
Helena - Great Falls, Montana, United States (USA)
Hickory - Lenoir, North Carolina, United States (USA)
Hilton Head Island - Bluffton, South Carolina, United States (USA)
Hobbs - Clovis - Roswell, New Mexico, United States (USA)
Houma, Louisiana, United States (USA)
Houston, Texas, United States (USA)
Huntsville - Decatur, Alabama, United States (USA)
Indianapolis, Indiana, United States (USA)
Ithaca-Cortland, New York, United States (USA)
Jackson, Tennessee, United States (USA)
Jackson - Meridian, Mississippi, United States (USA)
Jacksonville, North Carolina, United States (USA)
Jacksonville, Florida, United States (USA)
Jamestown-Dunkirk-Fredonia, New York, United States (USA)
Jasper, Alberta, Canada
Johnson City - Kingsport - Bristol, Tennessee, United States (USA)
Joliette (Lanaudière), Quebec, Canada
Jonesboro, Arkansas, United States (USA)
Juneau - Ketchikan, Alaska, United States (USA)
Kalamazoo - Battle Creek, Michigan, United States (USA)
Kalispell, Montana, United States (USA)
Kamloops, British Columbia, Canada
Kansas City, Missouri, United States (USA)
Kansas City - Overland Park, Kansas, United States (USA)
Kelowna - Okanagan, British Columbia, Canada
Kenai Peninsula, Alaska, United States (USA)
Kennewick - Richland - Moses Lake, Washington, United States (USA)
Kenosha - Racine, Wisconsin, United States (USA)
Killeen -Temple - Waco, Texas, United States (USA)
Kingston, Ontario, Canada
Kitchener - Cambridge - Guelph, Ontario, Canada
Knoxville, Tennessee, United States (USA)
Kootenays, British Columbia, Canada
La Crosse, Wisconsin, United States (USA)
Lafayette, Louisiana, United States (USA)
Lake Charles, Louisiana, United States (USA)
Lake Havasu City - Kingman, Arizona, United States (USA)
Lancaster - Harrisburg - York, Pennsylvania, United States (USA)
Lansing - Flint, Michigan, United States (USA)
Laredo, Texas, United States (USA)
Las Cruces, New Mexico, United States (USA)
Las Vegas, Nevada, United States (USA)
Lawton, Oklahoma, United States (USA)
Lethbridge, Alberta, Canada
Lexington, Kentucky, United States (USA)
Lima, Ohio, United States (USA)
Lincoln, Nebraska, United States (USA)
Little Rock, Arkansas, United States (USA)
London, Ontario, Canada
Louisville, Kentucky, United States (USA)
Lubbock, Texas, United States (USA)
Lynchburg, Virginia, United States (USA)
Macon - Warner Robins, Georgia, United States (USA)
Madison - Janesville, Wisconsin, United States (USA)
Malone, New York, United States (USA)
Manchester, New Hampshire, United States (USA)
Mankato, Minnesota, United States (USA)
Mansfield - Ashland, Ohio, United States (USA)
McAllen - Brownsville - Harlingen, Texas, United States (USA)
Medford, Oregon, United States (USA)
Medicine Hat, Alberta, Canada
Memphis, Tennessee, United States (USA)
Mendocino County, California, United States (USA)
Miami, Florida, United States (USA)
Milwaukee, Wisconsin, United States (USA)
Minneapolis - St. Paul, Minnesota, United States (USA)
Missoula, Montana, United States (USA)
Mobile, Alabama, United States (USA)
Moncton, New Brunswick, Canada
Monroe, Louisiana, United States (USA)
Monterey Bay, California, United States (USA)
Montgomery, Alabama, United States (USA)
Montreal (Greater Montreal), Quebec, Canada
Morgantown - Fairmont - Clarksburg, West Virginia, United States (USA)
Myrtle Beach - Conway, South Carolina, United States (USA)
Nanaimo, British Columbia, Canada
Nashville, Tennessee, United States (USA)
New Bedford - Cap Code, Massachusetts, United States (USA)
New Orleans, Louisiana, United States (USA)
New York-Newark, New York, United States (USA)
Newark - Jersey City, New Jersey, United States (USA)
North Port - Cape Coral, Florida, United States (USA)
Ocala - Gainesville, Florida, United States (USA)
Odessa - Midland - San Angelo, Texas, United States (USA)
Ogden - Logan, Utah, United States (USA)
Ogdensburg-Massena, New York, United States (USA)
Oklahoma City, Oklahoma, United States (USA)
Omaha - Council Bluffs, Nebraska, United States (USA)
Oneonta, New York, United States (USA)
Orlando, Florida, United States (USA)
Ottawa, Ontario, Canada
Outer Banks, North Carolina, United States (USA)
Owen Sound, Ontario, Canada
Owensboro, Kentucky, United States (USA)
Palm Bay - Melbourne, Florida, United States (USA)
Palm Springs, California, United States (USA)
Parkersburg, West Virginia, United States (USA)
Pensacola, Florida, United States (USA)
Peterborough, Ontario, Canada
Philadelphia, Pennsylvania, United States (USA)
Phoenix, Arizona, United States (USA)
Pittsburgh, Pennsylvania, United States (USA)
Plattsburgh, New York, United States (USA)
Portland, Maine, United States (USA)
Portland, Oregon, United States (USA)
Prescott, Arizona, United States (USA)
Prince Albert, Saskatchewan, Canada
Prince George - Cariboo, British Columbia, Canada
Providence - Warwick, Rhode Island, United States (USA)
Pueblo, Colorado, United States (USA)
Quebec City - Levis, Quebec, Canada
Raleigh - Durham - Cary, North Carolina, United States (USA)
Rapid City, South Dakota, United States (USA)
Reading, Pennsylvania, United States (USA)
Red Deer, Alberta, Canada
Redding - Red Bluff, California, United States (USA)
Regina, Saskatchewan, Canada
Reno - Carson City, Nevada, United States (USA)
Richmond, Virginia, United States (USA)
Rimouski (Bas-Saint-Laurent), Quebec, Canada
Roanoke - Blacksburg, Virginia, United States (USA)
Rochester, Minnesota, United States (USA)
Rochester-Batavia-Seneca Falls, New York, United States (USA)
Roseburg, Oregon, United States (USA)
Sacramento, California, United States (USA)
Saginaw - Midland, Michigan, United States (USA)
Saguenay - Lac-Saint-Jean, Quebec, Canada
Saint John, New Brunswick, Canada
Saint-Jean-sur-Richelieu (Montérégie), Quebec, Canada
Saint-Jerome (Laurentides), Quebec, Canada
Salem, Oregon, United States (USA)
Salt Lake City - Provo, Utah, United States (USA)
San Antonio, Texas, United States (USA)
San Diego, California, United States (USA)
San Francisco Bay, California, United States (USA)
San Luis Obispo - Paso Robles, California, United States (USA)
Santa Maria - Santa Barbara, California, United States (USA)
Sarnia, Ontario, Canada
Saskatoon, Saskatchewan, Canada
Sault Ste. Marie, Ontario, Canada
Savannah, Georgia, United States (USA)
Scranton - Wilkes-Barre, Pennsylvania, United States (USA)
Seattle - Tacoma - Olympia, Washington, United States (USA)
Sheboygan - Fond du Lac, Wisconsin, United States (USA)
Sherbrooke (Estrie), Quebec, Canada
Show Low, Arizona, United States (USA)
Shreveport, Louisiana, United States (USA)
Sierra Vista, Arizona, United States (USA)
Silver Spring, Maryland, United States (USA)
Sioux City, Iowa, United States (USA)
Sioux Falls, South Dakota, United States (USA)
Skeena - Bulkley valley, British Columbia, Canada
Southaven, Mississippi, United States (USA)
Spokane, Washington, United States (USA)
Springfield, Massachusetts, United States (USA)
Springfield - Joplin, Missouri, United States (USA)
Springfield - Peoria, Illinois, United States (USA)
Squamish - Whistler, British Columbia, Canada
St. Catharines - Niagara region, Ontario, Canada
St. George, Utah, United States (USA)
St. John's, Newfoundland and Labrador, Canada
St. Louis, Missouri, United States (USA)
State College, Pennsylvania, United States (USA)
Stillwater - Enid, Oklahoma, United States (USA)
Stockton - Modesto - Merced, California, United States (USA)
Sudbury, Ontario, Canada
Sunshine coast, British Columbia, Canada
Syracuse-Auburn, New York, United States (USA)
Tallahassee, Florida, United States (USA)
Tampa Bay Area, Florida, United States (USA)
Texarkana, Arkansas, United States (USA)
Thompson, Manitoba, Canada
Thunder Bay, Ontario, Canada
Toledo, Ohio, United States (USA)
Topeka - Lawrence, Kansas, United States (USA)
Toronto (Greater Toronto), Ontario, Canada
Trenton - Princeton, New Jersey, United States (USA)
Trois-Rivières (Mauricie), Quebec, Canada
Tucson, Arizona, United States (USA)
Tulsa, Oklahoma, United States (USA)
Tupelo - Columbus, Mississippi, United States (USA)
Tuscaloosa, Alabama, United States (USA)
Tyler - Longview - Texarkana, Texas, United States (USA)
Utica-Rome, New York, United States (USA)
Valdosta - Albany, Georgia, United States (USA)
Vancouver, Washington, United States (USA)
Vancouver (Greater Vancouver), British Columbia, Canada
Victoria, British Columbia, Canada
Vineland - Atlantic City, New Jersey, United States (USA)
Virginia Beach - Norfolk - Newport, Virginia, United States (USA)
Visalia - Tulare, California, United States (USA)
Washington, District of Columbia, United States (USA)
Watertown-Fort Drum, New York, United States (USA)
Wausau, Wisconsin, United States (USA)
Whitehorse, Yukon, Canada
Wichita, Kansas, United States (USA)
Wichita Falls, Texas, United States (USA)
Williamsport, Pennsylvania, United States (USA)
Wilmington, North Carolina, United States (USA)
Wilmington, Delaware, United States (USA)
Windsor, Ontario, Canada
Winnipeg, Manitoba, Canada
Worcester, Massachusetts, United States (USA)
Yakima - Wenatchee, Washington, United States (USA)
Yellowknife, Northwest Territories, Canada
Youngstown - Warren, Ohio, United States (USA)
Yuma, Arizona, United States (USA)
"Twinet"
View
Twinet®
By SIGA
List your business here for free !
Learn more
Get Started !
Back
An error occurred. Sorry for the inconvenience.
Close
Cancel
Confirm
