[ultimate_spacer height=”30″ height_on_mob_landscape=”10″ height_on_mob=”10″]
[ultimate_spacer height=”25″]
OUR PHILOSOPHY
We use the naturally occurring shrinkage of the log to our advantage with our ButtSpline® technology to make your log home air tight.
[ultimate_spacer height=”60″ height_on_tabs=”30″ height_on_tabs_portrait=”30″ height_on_mob_landscape=”30″ height_on_mob=”30″]
BUTTSPLINE® ASSEMBLY
- Two holes are drilled in the end of each log to create a figure-eight shape as they butt together in a wall assembly.
- A custom made ButtSpline® clamp is inserted into pre-drilled holes and pressure is applied to draw the joint together.
- An asphalt-impregnated figure eight foam pad is installed at the bottom of the holes.
- A two-piece polypropylene assembly is wrapped with asphalt foam tape and then dropped into the holes.
- Two 10-inch common spikes are driven into the two-piece assembly, wedging it apart, tightening the joint.
- Another asphalt-impregnated figure eight foam pad is installed on top of the assembly.
- The clamp is removed.
[ultimate_spacer height=”40″]
[ultimate_spacer height=”20″]
[ultimate_spacer height=”20″]
[ultimate_spacer height=”30″]
OUR SECRET
The natural shrinkage in the width of the log (green arrows).
The log squeezes on the radius of the ButtSpline®. At the same time (shown with blue arrows) the log shrinks lengthwise, pulling on the ButtSpline® causing the joint to tighten over time.
*Systems shown and used by True North Log Homes Inc. are protected by patents and patents pending – U.S.A. and Canada.