Legalett / Guides

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

Air-heated radiant floor slab foam forming systems

...Legalett that originated decades ago in Sweden now manufactures and distributes heated-floor systems across North America (you can get a quote here) . They are the only company we know of that provides this system; if anyone knows of others, please let us know in the comments section at the bottom. Why the Legalett r...

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils

...Legalett . Compacting gravel for under a raft foundation Insulated slab forming systems Corner detail for insulated slab forming system Skirt detail for frost protected shallow foundation slab forms Rebar detailing for slab foundations Slab-on-grade floors are often heated, which provide...

Solar Radiant Heated Floor Slab Kit
Delivery: radiant, forced-air and decentralized

Solar heated radiant floor with radiant heated hot water for a site with problem soil - expansive clay

...Legalett , a manufacturer of slab-on-grade insulating concrete form kits for problem soils and air-heated radiant floors , to see if high efficiency solar air panels could feed air directly into their existing in-floor duct work. They welcomed the challenge and engineered the system that will be the main heat source of...

Prefab LEED Passive House Kit Homes the Future of House Building?
Passive House

Prefab Passive House & LEED ready kit homes - the future of home building?

...Legalett with 6 inches of seamless insulation under the slab and on the exterior vertical surfaces. As the ground beneath this prefab kit house is expansive clay, a raft slab-on-grade design with solar radiant heating was chosen to avoid the costly process of soil remediation that would have been required to build a st...

Affordable Modern Prefab Eco Homes Available - The S1600
Off-grid and Net-Zero Housing

The S1600 - affordable modern prefab eco homes for families

...Legalett , an experienced company who designs and supplies insulated raft slab forms, frost-protected shallow foundation forms, Passive House certified super-insulated slab forming systems and air heated radiant floors to LEED, Passive House or Net Zero standards. The engineers at Legalett were happy to take on the c...

Prefab Passive House & LEED Kit Homes for Sale in Ontario & North Eastern US
Concept and design

Prefab Passive House & LEED ready kit homes - the future of buying a new home?

...Legalett with 6 inches of seamless insulation under the slab and on the exterior vertical surfaces. As the ground beneath this prefab kit house is expansive clay, a raft slab-on-grade design with solar radiant heating was chosen to avoid the costly process of soil remediation that would have been required to build a st...

Zero Carbon Homes - The S1600 Prefab Eco Home is affordably Close
Planning and Design

Zero Carbon Homes - The S1600 Prefab Eco Home gets affordably Close

...Legalett (the company that manufactured our slab on grade kit and air-heated radiant floor) , we will soon have solar air heating panels on the south wall that deliver hot air to the floor. Modelling suggests the solar panels could provide 70% or more of the total heat load required. And as an added bonus, the panels...

How to Build With Less Wood for Best Performance
Wood and organic materials

How to build high performance homes with less lumber

...Legalett ThermalWall rigid foam insulation panels This wall assembly doesn’t need an interior poly vapor barrier as the foam will be the vapor barrier. Double stud dense packed cellulose walls Cellulose is a recycled newsprint insulation so it is a natural product, and using it results in a much lower-carbon fo...

How to Insulate Exterior Walls from the Outside US Canada Ecohome
Walls and Roofs

The easiest way to insulate walls from the exterior in older homes

...Legalett as an effective way to increase total exterior wall R-values to Passive House standard easily taking a standard code compliant R-24 wall up to a R-52 high performance envelope. Even Lloyd Alter of Treehugger magazine wrote when reviewing the system; " there are some serious advantages to foam that can make a...