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Wildfire is different from wildland fire. Wildland fire is a regular part of a region’s ecology. Wildfire is a wildland fire that burns out of control. In this episode, we are joined by Daniel Gorham, a fire engineer at the Insurance Institute for Business and Home Safety.We talk about what wildfire resistant construction is, how it works, why it m…
 
Can a wall plummet from R-50 to R-12 because of the studs?In this episode, we are joined by Jonathan Smegal, M.A. SC a Senior Project Manager with RDH Building Science Laboratories breaking down the nuts, bolts, what, why and how of R-value, insulation, and building assemblies.ProTradeCraft.com による
 
This time we discuss dew point with Dr. Allison Bailes, aka, the Energy Vanguard.“Dew point is the temperature at which water vapor in the air will condense on surfaces. So, if you have a surface that is at the dew point temperature of the water vapor that’s in the space around that surface, the water vapor will start condensing on that surface."…
 
“Stucco is an exterior finish, and more specifically, we tend to think of it as an exterior plaster finish. In some of the literature and in architectural dictionaries, stucco can be used for both exterior and interior finish work, but really in this day and age, we talk about plaster, particularly in North America, for interior work.”—Sarah Gray, …
 
"ViscoElasticity is what we’re talking about and that is the property of a material that exhibits the viscous nature of a liquid but also the elastic nature of a solid." —Allen Sealock, the product director for ZIP Systems with Huber Engineered Woods talking about the pressure-sensitive adhesives that are used on construction tapes.…
 
Low-e coatings screen infrared heat from moving through windows, either inward, outward, or bothToday Ray Garries, Vice President of Engineering and Innovation at MI Windows and Doors joins the show to explain what low-e coatings are, how they work, and why they matter for windows in your home.ProTradeCraft.com による
 
Like an out-of-plumb wall, insulated and unvented roofs can work well—or not.In this episode, we are joined by Jonathan Smegal, M.A. SC a Senior Project Manager with RDH Building Science Laboratories breaking down the nuts, bolts, what, why and how of an unvented roof assembly.ProTradeCraft.com による
 
People have been growing houseplants in houses for a long time. They balance relative humidity, they clean the air, and they generally make the place homier.But a marijuana grow-room is different—large bushes filling a bedroom, demanding resources that typical houseplants do not demand.This can produce a lot of unwanted situations from moisture and…
 
If you can't build to stay dry, build to tolerate wet.In this episode of 7 Minutes of BS, 'Dr. Joe' Lstiburek, PhD , P. Eng, ASHRAE Fellow, and founding principal of Building Science Corporation explains why flood water cleanup is critical, and how to rebuild with tolerance in mind.Flood resistant construction is two things:One approach is to build…
 
A Drip edge is the leading edge of a flashing, sill, overhang or other linear, horizontal building element, designed to shed water.they’re commonly found at enclosure details such as flashings, overhangs, or transition details between enclosure elements.Like where one type of siding meets another. Or at the base of a wall where siding sets above a …
 
"Science is a method of understanding how things work in the universe."Allison Bailles, Ph.D. is the gest for this episode of 7 Minutes of BS.We decided to back out of Building Science for a minute to talk about what science is, how it works, why it matters, and whether only ostrichs do not understand that climate change is a thing.…
 
Three-pronged solution to indoor pollution: Isolate, eliminate, and ventilate. For today's topic, we have Jim Shelton, Vice President, Panasonic Eco Solutions of North America as he breaks down the nuts and bolts of cleaning the air inside a building and keeping that way.ProTradeCraft.com による
 
Heat stress is a net heat load to which a worker is exposed from the combined contributions of metabolic heat, environmental factors, and clothing worn, which results in the increase in heat storage in the body.Too much heat stress can increase the risk for experiencing a heat-related illness such as heat stroke, heat exhaustion, heat cramps, heat …
 
"You can't simply go down to the hardware store and buy a box labeled air barrier." This episode features Jonathan Smegal, M.A. SC a Senior Project Manager with RDH Building Science Laboratories breaking down the topic of air barriers in walls and roofs."A layer in the enclosure that stops the air movement from the interior to the exterior, and it …
 
In this episode, we are joined by Sarah Gray, an engineer with RDH Building Science Inc. to talk about using simple physics to outthink simple physics. Using gravity to beat surface tension, and slope to beat gravity.ProTradeCraft.com による
 
Vapor permeance is the property of a material – and in our discussions this will be building materials – which permits the passage of water vapor through it. Today's guest is Jonathan Smegal of RDH Building Science Laboratories...Some materials have high vapor permeance which means they allow a lot of water vapor to pass and other materials have si…
 
Guest: Sarah Gray, P. Eng., RDH Building Science Inc.Reservoir claddings include brick, stone, terra cotta, and even stucco, that are all porous materials. When exposed to rain or vapor diffusion, those pores will absorb and hold water until, the pores dry out. Just like a dam holds back lake water, the damned bricks hold the rain.…
 
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