Exterior basement insulation / Guides

How to insulate basements properly
Insulation and soundproofing

Best practices for basement insulation in new home construction

...basement insulation and heat loss © Ecohome Exterior basement insulation is less common, probably due to the fact that it can be more expensive. And there are certainly less cases where insulation is installed on both sides. By insulating the exterior of basement walls we consume less interior space and preve...

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

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

...insulation types to choose for basements. Better basement insulation techniques: The materials and design you choose are very important to prevent mold and should be appropriate for the environment they are destined to inhabit. Be very careful how and where you install wood and fiberglass insulation in basements (I...

Basement Design for walls prevents mold & midlew when renovating & finishing
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...basement insulation or maybe none. You may have an exterior damp-proofing spray on foundation walls but likely not a proper drainage mat and perimeter drain or basement flood prevention measures . Outside upgrades are the ideal correction given the way basement walls were left exposed in the past; however, unless you...

Slab on grade for a Passive Solar LEED Home insulated by Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...insulation can be very quick if not instantaneous, as added material costs are offset by money saved monthly on heating. The insulation we used here is Rockwool rigid board under the main slab and on the exterior of the slab, and high-density Type III EPS foam under the footing as Rockwool has not been tested yet for...

Basement wall insulation
Insulation and soundproofing

Properly insulating basements and concrete slab floors

...Basement or a Slab on Grade , in the EcoHome best practice for building Foundations & Basements guide section you will find the basics on foundation , basement & slab design , under slab insulation , site selection & preparation, excavation, drainage & radon gas prevention and mitigation . Technical edit and thermal ...

Slab on grade or a foundation and basement?
Foundation choices

Slab-on-grade vs foundation and crawlspace or basement

...basement construction: How to choose between a crawlspace or a slab foundation ? - Ecohome Guide Best practices for basement construction - Ecohome Guide How much insulation does a basement need - EcoHome Guide How to finish the exterior of Insulated basements and slabs - Ecohome Video Guide Why is a Slab-o...

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

Rigid insulation panels: which ones to use for different applications

...Insulation Products, Like Hemp Insulation panels or Batt Insulation or mineral wool - demonstrated here in roof insulation . Polyisocyanurate Foam Panels: PIR, polyiso, or ISO, is a thermoset plastic product typically produced as a foam and used as rigid thermal insulation panel - most often with aluminum foil faci...

Slab-on-grade construction technical guide
Slab on Grade

Slab-on-grade technical guide

...basement with much cheaper and better performing walls, though if you do need to build a basement to optimize sqft on your building plot, then learn best practice for insulating when building a new basement here , or if you have a basement and need to learn how to finish a basement & insulate correctly to avoid mold, s...

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

How to build high performance homes with less lumber

...insulation to the exterior of walls concerns us, since EPS foam glued to OSB is effectively a second vapor barrier . Every builder in a cold climate knows (or should know) that you want only one vapor barrier in a wall, and it goes on the warm side of the insulation. Yet we continue to install vapor impermeable exter...

Off grid, passively heated and cooled house in the Gatineau Hills, Que
Off-grid and Net-Zero Housing

Off grid living blog, part 2: passively heated, this house in Quebec aims for LEED certification

...exterior mineral wool board R5; plywood sheathing; house wrap; strapping; cement board siding. The ceiling is a mix of Roxul mineral wool batts and cellulose totalling R80, the basement is a mix of EPS foam and Roxul batts totalling R28. The benefits of a double exterior wall are plenty. It eliminates the...

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?

...exterior walls empty, and instead use the money you would have spent on batts to thicken up a seamless layer of board insulation. You may lose a couple of inches of interior space, but that space would be more comfortable and you will get a much better return on your insulation investment. Insulation between metal st...