A HIGH PERFORMANCE WALL, RESITANT TO FIRE, ROT, MOLD AND TERMITES
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- Опубліковано 5 жов 2024
- The off-grid homestead is in Western North Carolina, in a Wildlife Urban Interface (WUI) area. This designation means it is highly exposed to the wildfires that go through the area on a regular basis. Although we provided a minimum 50'-0" buffer between the buildings and the nearest tree line, we recognized much more is recommended. The owners did not want to live in a clearing too great, because they moved to this part of the country to be surrounded by nature for the rest of their lives. So, we designed every wall, floor, and roof assembly to be fire-, rot-, mold- and termite-proof (forest fires reach temperatures approximately 1,000 degrees F below the melting point of steel), and to last hundreds of years, using the best practices of building science and residential construction.
In this video, I explain how all of the layers of the wall and roof assemblies are put together.
Thank you for showing us a real-world example. Very huge difference compared to a classroom or textbook wall.
In the real world, you have supplier issues, quality issues, installation issues, before finally arriving at cost issues.
In a classroom or textbook, you ignore 99% of those issues.
You are rocking it, mountain man
More information regarding the sill detailing would be beneficial. The way I'm seeing it, the drain principle, while fine in theory, is incomplete in the mockup, since the terminus for the weeping from behind/underneath the frame is down the face of the exterior sheathing. This could lead to the saturation of the mineral wool insulation board, with the obvious deleterious effects of such.
Rock wool doesn't have deleterious effects from coming in contact with water like fibreglass does. It will dry out from the bottom of the drainage plane and not be hurt by the water itself.
Another great video, Chris! You mentioned using 1" metal decking on the roof...am I right to assume the DensDeck board cannot be, or is best not, used directly on the steel framing members? Thanks, Mark
Mark Lundegren DensDeck is designedly as a rigid substrate that is installed on to a structural deck (or other). It generally comes in 1/4" thickness, and requires additional control layers (e.g. peel and stick) before installing insulation and/or roofing.
@@LGSquared Thanks for clarifying. Yes, I figured there was no way around peel and stick on the roof. But I'm thinking I have seen thicker DensDeck in commercial applications.
Yes, the maximum span with the DensDeck, even at 5/8", is 8"
www.carlislesyntec.com/view.aspx?mode=media&contentID=5512
This is what I may have been thinking of...
ua-cam.com/video/H27OzZc9uME/v-deo.html
Offgrid? jajajajajajajaa sure.