icf-homes / Green Building & Sustainable Home Renovation Information & Advice

ICF Block Construction - The Definitive History of ICFs from 1932 to 2023 © R j
Concrete and masonry

The definitive history of ICF blocks and ICF construction

The Definitive History of ICFs - Contents What is the history of ICFs ? What is the History of Plastic foam ICF's  ICF blocks aren't made of styrofoam Who invented foam ICF construction blocks? Which was the first ICF block construction? What happened next in the history of ICFs? The History of ICFs Timeline ...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

What is the best wall system for a home?  We're frequently asked which is the perfect wall system for high-performance LEED, Passive House or Zero Energy Homes, Well, a perfect Answer to that Is, first Ask the Right Questions! - After all, what is the best way to get from one place to another?  You have to choose betwe...

Concrete, wood and steel structures compared - Timber Frame wins!
Materials and resources

How wood structures compare to steel and concrete for Carbon Footprint

Wood, steel and concrete each have specific structural advantages, each with their own characteristics. The following is a life-cycle comparison conducted by the Athena Sustainable Materials Institute (ASMI) of the materials only, and does not include any considerations of how they each affect thermal performance, vapo...

Top Tips for Getting a House Ready for Winter
Wall assemblies - renovation

Winter preparation for your home - are you ready for the cold?

Top Tips for preparing a home for winter Extremely low temperatures over winter can test your home in many ways, and sometimes your house will return a failing grade. Even brand new homes built to code can see failures of their building envelopes, windows, doors and ventilation systems during winter, a simple failure t...

Understanding sound transmission in homes
Insulation and soundproofing

Understanding sound transmission in buildings

Before embarking on any structural changes, it is most important to understand that the sound isolation between two homes is not determined only by the common wall or floor. All the other parts of the construction - side walls, ceilings, floors under walls - can transmit sound. Flanking sound transmission (see below), ...

Ice dams on roofs & how to fix them
Roof assemblies - renovation

What causes ice dams and how to fix them

Ice dams form at the bottom of roofs, letting water penetrate and cause damage to the interior of walls and roofs.  When snow melts on a roof it runs down until it meets the unheated bottom edge of a roof and then freezes. This chunk of ice is called an ice dam, and it can cause water to backup beneath shingles and Ice...

Real estate

Real estate

For most of us, purchasing or building a home will be the biggest investment of our lives. This section is about knowing what to look for in new homes to get the best value for your dollar, or what to look for in a building lot for the same reasons. What to look for in a location: Being close to where you work and pla...

Home construction
How to Find Qualified Green Building Professionals

Hiring professionals or doing it yourself

1. Hiring an architect: We discussed previously the idea of choosing an architect that specializes in high-performance Eco-friendly home design and can co-ordinate the work. They should be able to help you find general contractors and subcontractors that can help you carry out your work according to plan. This route is...

Techniques for reducing sound transmission in buildings
Insulation and soundproofing

Controlling sound transmission in buildings

The first step to controlling sound transmission in buildings is assessing the situation. What kind of noise is it? Noise in buildings is usually assigned to one of three classes: Airborne sound: Sound such as voices, TV or stereo sounds. The source does not strike or vibrate against the structure of the building. Stru...

Buying a Fixer-Upper vs. Move-In Ready or New Home, Which is Best?
Real estate

Buying a Home: Is a Fixer-upper, New, or Move-in-Ready Renovated Property the Best Choice?

The classic dilemma when buying a property is whether to buy new, to buy something older but move-in-ready, or to buy a complete fixer-upper? For a first-time homebuyer seeking an eco-friendly home it's even more complicated! This puzzle can feel as baffling as choosing between chocolate, vanilla, or strawberry ice cre...

Insulated Radiant Floor ICF Foam Forms Heated with Air
Delivery: radiant, forced-air and decentralized

Air-heated radiant floor slab foam forming systems

Radiant heating systems are very common in concrete floors now because they provide a very balanced and comfortable distribution of heat. Those systems are most commonly hydronic, meaning heated liquid is pumped through tubing in the concrete which then radiates that heat into the house. View the slab on grade foam for...