Types of basement insulation / Guides

How to insulate basements properly
Insulation and soundproofing

Best practices for basement insulation in new home construction

...basement walls - often caused by interstitial condensation . The following basement insulation techniques listed here are designed to offer the most sensible and durable options for interior insulation, exterior insulation, or ideally, a combination of both. These assemblies have been designed to prevent moisture i...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...basement foundations were allowed to dry completely before interior finishing started and they included all the necessary waterproof membranes on the exterior, interior insulation means the temperature of the concrete will be determined by the temperature of the ground or air outside. With some types of insulation th...

Insulating a Slab on grade for a Passive Solar LEED Home with Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...of R8 insulation extending 4 feet out from the slab just below final grade, to ensure the ground below and surrounding the slab stays above freezing. Learn which types of insulation are best for where when building a Green Home home here . We are so accustomed to a house having a basement that the idea of building a ...

Balanced insulation levels in a green home
Efficient home design

Insulation in Green Home Building, a balanced approach to putting it where it does the most good

...insulation is about respecting the laws of diminishing returns. Example - If I have a wall with just 2 inches of insulation and I add another 2 inches, I will certainly get my money out of it. If I have a wall with 30 inches of insulation and I add 2 inches, I may never get my money out of it. The amount of additiona...

Slab-on-grade construction technical guide
Slab on Grade

Slab-on-grade technical guide

...types of terrain, with the exception of heavily sloped sites, and increasing the performance of slab on grade floors is simply done by adding insulation - yep, we have a guide for how to insulate slab on grade floors when building, here . Why build on a slab instead of a basement? To save money and carbon emissio...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

Choosing the right insulation: the pros, cons and applications for walls, slabs & basements

...insulation, EPS foam insulation needs to "come out of the shadows" of being lumped in with Styrofoam as it makes absolutely the best sense per $ and environmentally for continuous and resistant insulation in buildings. Extruded Polystyrene Foam (XPS) Extruded rigid foam boards most often Styrofoam Recyc...

Installing foam panel insulation, which is best?
Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

...insulation panels should be avoided for below-grade applications like basement insulation - which is the opposite of much of the information out there. XPS rigid foam insulation board © Ecohome Note: 1 perm and 60 ng are U.S. and Canadian equivalent rates of permeability, below that rate of permeability classif...

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

...of insulation separating the concrete from the ground. The result is a very comfortable and energy efficient basement, with no thermal bridging and reduced risk of mold. Basement mockup with raft slab and ICF wall courtesy of Treehugger Mockup of a raft slab with radon/vapour barrier protected between layers ...

Frost Heave Prevention Helps Stop Frost Heaving Breaking up Home Foundations
New foundations and slab-on-grade

What causes Frost Heave? Preventing frost heaving is down to good foundation design

...insulation against frost heave! Soil has an insulating value of about R3 per foot, where foam insulation will be between R3 and R5 per inch. That’s why you can build in an area where the frost depth is 4 feet in winter by using 4 inches of insulation instead of 4 ft of dirt. As a quick caveat – there are many types o...

Real estate

Evaluating a home before purchase: how to recognize value and potential problems

...of peak as well. Note the type and depth of insulation. More on roof insulation here. Does it pass the smell test? No, really, does it? All homes will have a certain scent that is due partly to the habits of previous owners, but also the mechanical systems, building materials, and how it was built in the first plac...

Energy modeling simulation of heat loss through thermal bridging
Efficient home design

What is a thermal bridge and why is it so important to break it?

...of that insulation by 60 to 70%, or more. According to Building Science Corporation, " The R-value of 6 inch deep steel studs installed at 16 inch centers with cavity insulation of R-21 is reduced to R-7.4, a value only 35% of the nominal ". If putting heat conduits on either side of batt insulation reduces their p...