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Cutting insulation between rafters with the ISC 240 insulation saw

Detailed solutions for pipe openings
Rafters-with-pincers
Pipe opening in rafter area
The following application example shows details of cutting insulation between rafters. Above all, the cutting in the pipe openings area is described here. It should be shown how such details can be worked out easily and quickly with a Festool insulation saw.

    Description

    When installing the insulation between the rafters, care must be taken to ensure that the insulating material fills all hollow spaces. Therefore, the right cut is very important. Incomplete installed insulating material leads to structural damage due to condensation and mould growth. In the case of pipe openings or other components in the compartment, the insulation between the rafters must be adapted accordingly. These details can even be quickly and easily cut into the insulation between the rafters with the ISC.

    Tools/accessories

    Preparation/set-up

    • Changing the cutting set

      It may be necessary to use the longer cutting set for inclined cuts. If necessary, change the set according to the instructions in the operating manual.

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      Changing the cutting set

    Procedure

    • Measuring the compartment width

      Measure the compartment width and add extra for better clamping (1 cm here).

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      Measuring the compartment width

    • Adjusting the angle stop width

      The required dimension can be read off the scale and fixed accordingly.

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      Adjusting the angle stop width

    • Cutting insulating material to size

      Position the insulation between the rafters on the stop tab and cut the insulating material with the ISC using the guide rail slide.

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      Cutting insulating material to size

    • Measuring the remaining dimension for the middle of the pipe

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      Measuring the remaining dimension for the middle of the pipe.

    • Removing the bevel

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      Removing the bevel.

    • Positioning dimension and cutting into the insulation between rafters

      Here, the insulation between the rafters is cut directly to transfer the dimension (up to the middle of the pipe). Alternatively, a permanent marker (Edding) can be used instead of cutting to make the markings.

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      Positioning dimension and cutting into the insulation between rafters

    • Positioning for bevel cut

      Position a bevel at the previously made incision or marking and likewise cut into it.

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      Positioning for bevel cut

    • Making the bevel cut

      A board can now be used as a guide to cut into the insulation between the rafters.

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      Making the bevel cut

    • Making the bevel cut

      An exact bevel cut can also be produced without a guide frame.

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      Making the bevel cut

    • Marking the pipe position

      Insert the insulating material and mark the pipe position with a pen.

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      Marking the pipe position

    • Transfer the markings to both insulating material halves

      Position both pieces next to each other and transfer the markings.

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      Transfer the markings to both insulating material halves

    • Marking the circles

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      Marking the circles

    • Finished marking

      Finished marked insulating material

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      Finished marking

    • Cutting insulation between rafters

      Cut out the insulating material freehand at the corresponding place and repeat on the counterpart.

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      Cutting insulation between rafters

    • Cut out insulating material

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      Cut out insulating material

    • Inserting the insulating material

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      Inserting the insulating material

    • End results

      After cutting the insulation between the rafters, the pipe passage ideally looks like this.

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      End results