How to Use LAGIT
Perfect insulation cuts every time
Whether you're an experienced engineer or new to insulation work, LAGIT makes achieving professional mitered cuts simple and precise. Follow this guide to master the technique and create perfectly sealed insulation joints.
1 What You Need
Sharp Knife
We recommend an 18mm new-bladed snap-off knife or a dedicated insulation saw for clean cuts.
Insulation Material
Any lagging or insulation material you need to cut to size.
Correct Size LAGIT
Make sure your LAGIT matches the thickness of your insulation for a precise fit.
2 For Straight Cuts
If you just need a straight cut, use your eye. You most likely call yourself an engineer—act like one! Trust your judgment and make the cut freehand.
Where LAGIT comes into play: LAGIT is designed specifically for angled cuts where precision matters—45-degree and 90-degree mitered joints.
3 Understanding the Angles
LAGIT has two sides, each designed for a specific purpose:
Why these angles? When you cut two pieces at the same angle and join them together, the angles combine to create your desired joint angle. Two 22.5° cuts = perfect 45° corner. Two 45° cuts = perfect 90° corner.
4 Making the Cut
Step-by-step process:
- Slide the insulation into the LAGIT up to where you want to cut
- Securely hold the LAGIT in your hand or against a solid base
- Ensure your hands are on the back side of where the blade will be
- Gently cut along the edge of the LAGIT through the insulation
- Repeat this process for the second piece
- Join the two mitered pieces together
Safety First
Always ensure your hands are positioned on the opposite side of where the blade will cut. Use a sharp blade for cleaner cuts and less force required.
The Result
You'll have a perfectly sealed and professional-looking insulation joint that fits together seamlessly.