Insulation & Soundproofing

 
R values and insulation performance
Study shows there are more factors at play beyond simply the R value of materials in determining the thermal performance of buildings. First published in ecoHouse Canada   The thermal performance of wall assemblies and insulation products has long been characterized using...
Installing foam panels in ceiling
Rigid foam boards are not all the same. You will need to choose between polyisocyanurate, EPS and XPS. Choosing wrong may lead to premature failure of your building envelope. . There are really three kinds of rigid foam panels you are going to have to choose from -...
Energy modeling simulation of heat loss through thermal bridging
Thermal bridges in walls can reduce the overall performance of a home. Thermal breaks are the answer to this problem. It is easy to look at the R value rating of a material and assume that our entire wall assembly matches it uniformly. But when you factor in the thermal bridges caused...
Dense-packed cellulose wall insulation
Dense-packed cellulose insulation in double stud walls offers high performance while maintaining a low carbon footprint. Here we bust some of the unfortunate myths and misunderstandings surrounding this type of wall construction. . In 2005, Metric Homes of Carp, Ontario designed and...
Exterior damp proofing and drainage mat to protect basements from water damage
Basements in Canada face serious challenges: fluctuating water tables, surface floods, thermal shock, radon gas infiltration, condensation, mold, mildew, rotting walls and heat loss. Better basements manage these issues. . The most common practices currently employed for finishing...
Poly vapour barriers in air conditioned houses can cause mold and rot
The practice of putting polyethylene vapour barriers in houses was intended to keep them dry, but it ends up keeping them wet. It's time to explore alternatives. Much of the following was inspired by a lecture given in Barrie, Ontario, April 2014 by Joe Lstiburek of Building Science...
Basement wall insulation
The importance of properly insulating basements cannot be stressed enough. Uninsulated basements and poorly insulated basements can be responsible for as much as 1/3 of the total heat loss of a home. . Technical edit and thermal images by Denis Boyer Before we began insulating...
Techniques for reducing sound transmission in buildings
Before attempting to improve a wall or floor, it is essential to assess the situation to try to identify the major cause of the inadequate sound isolation. Unnecessary alterations can be a waste effort and money. The first step to controlling sound transmission in buildings is...
Understanding sound transmission in homes
Sound transmission in multi-unit dwellings and single family homes can affect quality of life. Learn how to prevent it. . 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...
Thermal image showing where home heat loss is occurring.
Understanding how insulation works is best achieved by first understanding the way heat loss occurs in homes. . Insulation slows the rate of heat transfer, helping keep homes warmer in winter and cooler in summer. How well-insulated your home is will determine how comfortable it is...
Naugler House: the most energy efficient home in New Brunswick
With a $77 annual heating bill, the Naugler House has earned its bragging rights. With a heating bill of $77 for an entire winter, the Naugler House is without a doubt the most energy-efficient home in New Brunswick. Not only will it save money long-term, it is saving money right now...
BioSIPS Pre-fabricated straw bale panels
Straw bale SIPS (Structural Insulated Panels) have all the benefits of traditional straw bale homes, but address all the risks. Traditional straw bale home construction can be a low-tech and affordable route to a very ecologically responsible home. There are, however, some legitimate...