I always learn something from you, Joe. The concept of a rainscreen system dates back to medieval times. Illustrations can be seen in churches constructed with wooden rainscreen cladding in the typical Norwegian wood and stone architecture. A stave church in Urnes, Norway, built around 1130, still survives. It is recognized as the first use of an architectural rainscreen. These earliest rain screens were created through experimentation rather than through scientific research, with wood cladding, using tight seams between boards, leaving an air cavity behind with ventilation at the top and bottom of the facade to enable rainfall to flow away and moisture to evaporate into the eaves above. -Fairview Architectural
A capillary border barrier would be as much the answer to immigration, as much as it would be the answer to the Famouse Dust Bowl irrigation, excellent segment ! - Thank you !🎖
I assume this is a good reason NOT to apply spray foam (even closed cell?) directly to the back of corrugated sheet metal when it's used as an outer layer on a structure (say, for the new "barndominium" building fad)? Would you recommend house wrap beneath the corrugated metal and applying the spray foam insulation to the house wrap from the inside of the house? My builder is saying that applying it directly to the metal adds structure and won't give us sweating issues but I've read otherwise. As well, I've heard say that some metal suppliers won't uphold their warranties if spray foam is applied directly do it...presumably due to corrosion which I assume is created with no air layer between the warm inside of the house and the cool outside.
Here Joe is discussing rainscreens with reservoir (or absorptive) cladding. Corrugated metal would not be a reservoir cladding, so we haven’t any worries about inward vapor drive given that metal can be both a vapor barrier and an air barrier (if made continuous). We recommend you consult with your cladding manufacturer about the advisability of spraying against it the specific type of foam you are considering using.
Canada and Norway shared hockey, except one country was/is overwhelmingly better. Jokes aside this detail is worth untold thousands (maybe more, beyond my pay grade) thanks for keeping up the good work! Maybe we'll see more building science videos in the future?!?!
I really like your videos, and these chats. Curious about insects, and other critters with open clading? (Sorry if I missed it ). Also going through you videos looking for the transition areas, like from wall to basement for adice on insect/critter control plus the freeze thaw cycle of these zones. Not a pro, just an old guy from up north. Love your refreshing humour!!!!!
Hi there! Happy to help. What specifically are you curious about when it comes to insects with open joint cladding systems and below-grade foundations? You also mention looking for more info on freeze/thaw cycles. We might not have all the information specific to these topics, so we'd encourage you to explore Joe's website -> www.buildingscience.com. He's written hundreds of helpful articles. Hope this helps!
@@coselladorken Personally, I'd be interested in insects building nests behind the open cladding, since they'd have access though the cladding being, well, gapped between joints. Also, whether insects would then try to eat through whatever is behind the cladding. Either Exterior insulation, or house wrap, or the rains screen material itself, be it wood or plastic like Cora Vent.
Hi Joe I am a construction worker and I currently work for a large commercial glass company I am interested in learning about building science And have no formal education in it where do you think I should start (i’ve already been devouring UA-cam videos) i’m toying with the idea of moving my career in the direction of being able to work in the capacity of a consultant when I retire.
I always learn something from you, Joe.
The concept of a rainscreen system dates back to medieval times. Illustrations can be seen in churches constructed with wooden rainscreen cladding in the typical Norwegian wood and stone architecture. A stave church in Urnes, Norway, built around 1130, still survives. It is recognized as the first use of an architectural rainscreen.
These earliest rain screens were created through experimentation rather than through scientific research, with wood cladding, using tight seams between boards, leaving an air cavity behind with ventilation at the top and bottom of the facade to enable rainfall to flow away and moisture to evaporate into the eaves above.
-Fairview Architectural
I'm a homeowner and have thoroughly enjoyed listening to Dr Lstiburek. Thank you.
Information is invaluable.
A capillary border barrier would be as much the answer to immigration, as much as it would be the answer to the Famouse Dust Bowl irrigation,
excellent segment ! - Thank you !🎖
I assume this is a good reason NOT to apply spray foam (even closed cell?) directly to the back of corrugated sheet metal when it's used as an outer layer on a structure (say, for the new "barndominium" building fad)? Would you recommend house wrap beneath the corrugated metal and applying the spray foam insulation to the house wrap from the inside of the house? My builder is saying that applying it directly to the metal adds structure and won't give us sweating issues but I've read otherwise. As well, I've heard say that some metal suppliers won't uphold their warranties if spray foam is applied directly do it...presumably due to corrosion which I assume is created with no air layer between the warm inside of the house and the cool outside.
Here Joe is discussing rainscreens with reservoir (or absorptive) cladding. Corrugated metal would not be a reservoir cladding, so we haven’t any worries about inward vapor drive given that metal can be both a vapor barrier and an air barrier (if made continuous). We recommend you consult with your cladding manufacturer about the advisability of spraying against it the specific type of foam you are considering using.
Thank you Joe . . . Really appreciate your wisdom . Thanks again .
Canada and Norway shared hockey, except one country was/is overwhelmingly better. Jokes aside this detail is worth untold thousands (maybe more, beyond my pay grade) thanks for keeping up the good work! Maybe we'll see more building science videos in the future?!?!
Hi, would like to have more info on this subject please. Thanks
Gerald Kurkjan, you will find in the description of this video, a link where you will find the information.
I really like your videos, and these chats. Curious about insects, and other critters with open clading? (Sorry if I missed it ). Also going through you videos looking for the transition areas, like from wall to basement for adice on insect/critter control plus the freeze thaw cycle of these zones. Not a pro, just an old guy from up north. Love your refreshing humour!!!!!
Hi there! Happy to help. What specifically are you curious about when it comes to insects with open joint cladding systems and below-grade foundations? You also mention looking for more info on freeze/thaw cycles. We might not have all the information specific to these topics, so we'd encourage you to explore Joe's website -> www.buildingscience.com. He's written hundreds of helpful articles. Hope this helps!
@@coselladorken Personally, I'd be interested in insects building nests behind the open cladding, since they'd have access though the cladding being, well, gapped between joints. Also, whether insects would then try to eat through whatever is behind the cladding. Either Exterior insulation, or house wrap, or the rains screen material itself, be it wood or plastic like Cora Vent.
Hi Joe I am a construction worker and I currently work for a large commercial glass company I am interested in learning about building science And have no formal education in it where do you think I should start (i’ve already been devouring UA-cam videos) i’m toying with the idea of moving my career in the direction of being able to work in the capacity of a consultant when I retire.