basement-finishing / Green Building & Sustainable Home Renovation Information & Advice

The most common practices currently employed for finishing basement interiors as living space rarely account for the impacts that come with the added moisture load below grade, or the amount of heat that will be lost to the ground. Existing basements are typically under-insulated or not insulated at all, and if they ar...

Basements don't have to be moldy, that is the first thing to realize. It's easy to build a basement better, or to finish an existing basement correctly, we just need to realize that they behave differently than above grade walls and to build accordingly to effectively deal with the humidity found underground - and by d...

Polyisocyanurate (PIR), Extruded Polystyrene (XPS), Expanded Polystyrene (EPS) or Styrofoam? When building or renovating a high-performance building envelope there are really three main kinds of rigid foam panels you are going to have to choose from - Polyisocyanurate known as Polyiso (PIR), Extruded Polystyrene (XPS) ...

That musty, moldy basement smell that we have come to accept as unavoidable, is actually quite avoidable. The solution is really quite simple - stop building below grade with walls that were designed for above grade and your basement won't smell like old gym socks and potentially make you ill with mold spores. As a fre...

Insulating below slab-on-grade foundations Why insulate under a slab on grade foundation? For comfort, and to save money, that's why! In many areas Building Code has fallen behind common sense on what specification of insulation to use under a slab, It is common to install as little as R5 insulation below slab floors, ...

  Insulating a basement is a great idea if it wasn't insulated when built, as before we began insulating foundation walls and below slabs (see slab on grade), it was generally estimated that basement heat loss accounted for about 1/3 of the total heat loss of a house. It is likely that such an abysmal starting place ma...

Wood ceilings - what's the the skinny? Ahhh, the charm of a wood ceiling, seriously, what's not to like? The intent of this page is less about talking you out of installing gypsum board (drywall), and more about giving you a little encouragement if you are hesitantly considering a wood ceiling. It’s a natural product t...

Adhesives and sealants: Modern homes have a lot more caulking and adhesives than older homes. Adhesives are liberally applied to many surfaces for ease and speed of job completion, as well as to prevent squeaking between flooring and joists, for example. Functionally speaking, caulking is used to prevent moisture and a...

I'm not the Mike Reynolds who invented the Earthship, I'm the Mike Reynolds who thinks Earthships in Canada and other cold climates are a bad idea. A coincidence of names; just putting that out there so The Garbage Warrior doesn't get hate mail that belongs to me.  Where did the Earthship come from? It first showed up ...

The following is an interview with Patrick Ranger, General Manager at Belvedair, a construction company specializing in the design and construction of green homes. Patrick is trained in business administration and information management, and is an experienced green building project manager. JP – Patrick, please tell us...

Polished concrete floors are extremely durable and non-toxic; silicate-based densifiers keep them that way and make it a great start to safe indoor-air quality in a home. This is an excellent flooring option for anyone with chemical sensitivities who wants a beautiful and durable eco-friendly floor in their passive sol...