Roof insulation for flat and pitched roofs - as if it was cast in one piece

Generally, roof insulation for flat and pitched roofs is made of Styrofoam, Neopor, Styrodur or mineral wool. Looking at all the Styrofoam insulation, which has been built in over the last 25 years, the material overall brings around one Million tons on the scale. To avoid the notorious cold bridges (which is really a heat transferring bridge), these insulation boards have to fit tightly and snug like a glove. The growing demand for roof insulation is the result of the growing real estate market. New houses keep popping up everywhere nowadays. So, why don't you benefit from this building boom?

Are you already a distributor or manufacturer of insulating materials or would you like to expand your business? If so, then increase your profit by cutting perfectly fitting roof insulation! In addition you could manufacture insulation boards for floors and facades. Keep reading and we will tell you exactly how to get started with this type of business in no time at all.

Brave the gap - take your chance

Industrial suppliers often struggle to process small and medium client queries and orders in a timely manner. And customers prefer things to be simple instead of complicated. Here, flexible suppliers will find a profitable gap. Trump the commercial mass producing businesses by offering smaller batches and shorter delivery times. With our CNC machines, the production of roof insulation is as easy as child's play. cnc-multitool offers the perfect professional solution for any insulation material. See for yourself.

Ridge and groin panels
Ridge and groin panels
Two-sided sloped panel
Two-sided sloped panel
sloped panel
sloped panel
Valley panels
Valley panels

From the task to the solution


You want to cut the following roof insulation elements from polystyrene (EPS, XPS) or mineral wool:

  • Groin panels
  • Ridge panels
  • Pitched panels
  • Right-angled panels
  • Roof ridges for flat roofs
  • Attic insulation
  • Insulation wedges
  • Inverted roof
  • Roof edge wedges


For these tasks, the machine has to fulfill at least the following requirements:

  • Cuts Styropor®, Neopor® and Styrodur® or mineral wool
  • Can produce 2D objects
  • Two parallel x/y axes for interlaced cutting
  • Control via computer (CNC)
  • Can import drawings and data from standard software such as AutoCAD® or MF-Dämmplan (insulation planning software)


Work even more flexible and productive with the following extensions:

  • Blockslicer with 10 wires for panels, pitched roofs etc.
  • multiROOF program to calculate various different cutting data for flat and pitched roofs
  • multiCUT Software to optimize the cutting of materials from roof ridges, attic insulation, insulation wedges, inverted roofs, roof edge wedges…


gradient insulation plan

To cut any roof insulation for flat and pitched roofs does require a certain amount of preparation. Mostly, the roofer will create something like a gradient insulation plan according to the blueprints provided by the architect. He will determine the draining points, cut-outs for light domes, where the rain water gutters will go and many other details related to the entire roof layout. Here, professionals will use specific software programs like DachDesigner and Dämmplan (German roof insulation planning software). These will create a graphic gradient plan (see example image) as well as a very precise plan for the relevant insulation pieces, the sizes down to the millimeter, and where they will go. The program will also create the sales and physical building data. The parts list can then be imported directly into our multiRoof Software (see below).

Avoid isolated applications

Free technical support

Even the very best CNC Styrofoam or quick-wire cutting machine for roof insulations is completely useless, if it only creates isolated applications. Such isolated and random tasks will hinder any productive process within your business. Hence the reason, why we closely interlock our machines with the software. This way we can create powerful system solutions that are very easy to use. One of cnc-multitool's very own sister companies developed all important programs for the operation of the hardware (see below). This in-house software offers the seamless integration of standard programs such as AutoCAD®, CorelDraw® or MF Dämmplan (German insulation planning software) and makes comprehensive solutions possible, which will boost your production like a turbo charger..

You can improve your productivity too - with the complete solutions provided by cnc-multitool. You will be able to offer your clients roof insulations for flat and pitched roofs at competitive prices and with that you will simultaneously increase your profit. We will be happy to show you the machines that best suit your individual needs live in our competence center in Ilmenau, Germany. See for yourself how they work and ask us any questions you might have right there and then. Or would you like to get answers sooner? Simply give us a call or send us a quick message.


»With the cnc-multitool machines we are now able to produce roof insulation much faster and more flexible than the leading manufacturer. The local building and construction companies do appreciate this. Many of them are now our regular clients .«

Simmler (Owner of Simmler Insulations)

Which CNC machine is best for you?

CUT2900S for slope panel cutting

The more you know your very own requirements, the easier your choice will be to pick out the perfect CNC machine for your roof insulation. The right decision will be rewarded with the best quality of your work and productivity. The first question you should ask yourself is, what your priorities are.

Do you want to produce roof insulation made from Styrofoam (EPS), Neopor or Styrodur (XPS) or mineral wool (fiberglass, rock wool, slag wool)? If you prefer to work with hard foam, the hot wire cutting machine would work best. To cut any type of mineral wool and condensable foam, a cold wire cutting machine is the better choice (quick-wire cutting machine).

Will you manufacture predominantly smaller insulation panels and insulation elements? A machine with a lower portal height and smaller working table is more than sufficient.

CUT2900S for flat roofs and pitched roofs

However, if you are planning on producing larger batches of EPS or XPS insulation panels, a Blockslicer would be the right choice. With its ten or even twenty wires you can cut many panels in just one single step. The independent y-axes also make angled cuts for pitched roofs possible, as well as ridge and valley panels made from a single piece.

Before choosing your machine, be aware of the amount, quality and material of your product!

Wire length and type of machine

The maximum wire length of 1,300 mm is perfect for the cutting of most sloped slabs, ridge panels, groin panels, roof ridges and insulation wedges. The maximum height/width of the standard boards and Styrofoam blocks is usually 1,250 mm. Therefore machines with shorter wires should be able to fit larger insulation boards. A much longer wire will instead slow down the cutting speed. We have optimized the following machines for cutting roof insulation for flat and pitched roofs:


CUT 2500S

Universally extendable CNC Styrofoam cutting machine for frequently changing applications. Variable cutting wire up to 5 m long. 4 axes cuts plus a rotational axis as an added extension. Perfect for manufacturers, creative designers and universities.

  • Controlled via computer (CNC)
  • Optimized for standard boards and blocks
  • Usable wire length up to 5,000 mm!
  • Sturdy steel construction (no Aluminum)
  • Extendable: rotating table, profile cutting, multiple wire cutting, plunge cutting etc .
CUT 2500S - 3D Craft

CUT 2900S

This mahine series has everything needed to become the leading machine in your production of pitched and sloped insulation panels made from polystyrene (EPS and XPS). Ten wires can cut right-angled insulation panels as well as ridge and valley boards simultaneously. The best solution for any roof.

  • With the Blockslicer and independent y-axes ideal for building pitched roofs
  • Also perfect for cutting letters, logos, lettering and 3D objects
  • Extendable by additional rotating axes (rotation table, lathe)
  • Very fast cutting speed
CUT 2900S - 3D Production
FW4000H Coldwire cutting machine

FW 4000H

The quick-wire or cold wire cutting machines of the FW 4000H series utilize a coarse cutting wire, which can cut through mineral wool or any hard or flexible foams at the incredible speed of 300 km/h. Not only that, but these cuts will also be extremely accurate - down to the millimeter - when it cuts roof insulation made of fiberglass or rock wool.

  • Sturdy welded and painted steel construction - no Aluminum!
  • Low maintenance belt drive
  • Wire strength adjustable to the material
  • Safety device and grate
FW 4000H - 2D Production

Which materials are best for roof insulation and slated roofs?

Styrofoam panels and blocks

Styropor® (EPS)

Expanding Polystyrene (EPS) is also known as Styrofoam or Styropor®. The rights to this trademark are owned by BASF. The white material is available in boards or large blocks. The boards come in a thickness of up to 300 mm and with the standard dimensions of 1,000 x 500 mm. Styrofoam blocks usually come in the standard size of 1,250 x 1,050 mm, but can be up to 5,000 mm long. EPS is ideal for the manufacturing of crown molding and decorative façade elements. We recommend material with a volumetric weight of 30-40 kg/m3. According to the European Standard Norm (European classification EN), Styropor® is classified as fire-resistant material.

  • Large blocks up to 1,250 x 1,050 x 5,000 mm
  • Surface is finely pearled and white
  • Can be cut thermally very well
  • Applications: medium to large, coarsely profiled molding, Stucco elements, columns, pillars, capitals, fascias, window sills and frames, formwork etc .
CAD Software


Die BASF-Marke Neopor® steht für einen silbergrauen Schaum aus expandierbarem Polystyrol (EPS). Partikel aus Grafit geben dem Werkstoff seine typische Farbe. Der Grafit streut und absorbiert Wärmestrahlung. Deshalb eignet sich Neopor besonders gut als Dämmstoff. Sie erhalten das Material in Platten oder Blöcken von 1.000 x 500 mm bis zu einer Stärke von 300 mm. Da Neopor um bis zu 20 % besser dämmt als Styropor, eignet es sich vornehmlich für die Boden-, Decken-, Innen- und Außendämmung sowie für Schalungen. Mit Stuckelemente aus Neopor vermeiden Sie sogenannte "Kältebrücken", die Wärme schneller entweichen lassen. Neopor erfüllt die Kriterien für den Brandschutz nach Baustoffklasse B1 (Euroklasse E).

  • Large blocks up to 1,250 x 1,050 x 5,000 mm
  • Surface is fine-pearled and anthracite
  • Cuts thermally very well
  • Applications: medium to large facade elements, 3D letters, logos and symbols
Polystrol alternatives

Polystyrol (EPS/XPS)

Since roof insulation is part of a growing trend, more and more insulation material alternatives for Styrofoam, Neopor and Styrodur are becoming available on the market. Mineral wool such as rock wool and fiberglass are increasingly popular. Other alternatives include wood fiber and mineral insulation boards, cellulose, PUR hard foam, foam glass panels as well as cellular glass ballast and perlite granules. Construction and building biologists also recommend hemp, flax and sheep wool for indoor insulations. cnc-multitool offers the perfect cutting machine for mineral wool and condensable foams with the computer controlled Fastwire machine FW 4000H. We are happy to provide more information and advice with regards to any insulation materials that you can cut with this quick-wire cutting machine.

  • Made from natural raw materials, these building materials are very suitable for sustainable construction and renovation.
  • Please check the advantages and disadvantages of the individual insulation materials with the manufacturers and suppliers.

No worrying when disposing

flame retardant HBCD

In the past, roof insulation made of Styrofoam (EPS) and Styrodur (XPS) ended up in the news headlines. Not because crude oil is the raw material to manufacture these polystyrenes. The focus was rather the flame retardant HBCD (hexabromocyclododecane) that was contained within these insulation foams. Some waste incinerator plants did no longer accept old Styrofoam insulation. The reason was quite obvious: HBCD is produced with bromine, which could be hazardous to human and animal health. It has been proven that the chemical will only degrade very slowly in the environment. However, according to the German Federal Environmental Agency (UBA) it has now been established that HBCD-containing insulation boards pose no health risks for the residents in these houses, where this type of insulation has been used.


Largely unnoticed by the public, the polystyrene industry has responded to criticism from environmentalists. Manufacturers have stopped adding brominated flame retardant to insulation foams in 2014. The Styrofoam that is currently available can be safely disposed of. However, it still very much seems that the press and media prefers to broadcast prophecies of doom rather than good news. Hence the reason as to why the changing trend in the use of EPS and XPS polystyrene foams has hardly hit the news or headlines. If you want to be absolutely sure and be safe, simply ask us about our polystyrene foams and get them straight from us. We will only supply EPS and XPS foams that meet all the current criteria for the environmental requirements. And we are happy to help you with your individual choice of materials - simply give us a call or send us a quick message.


Soft ware for hard foams

If insulation for flat and pitched roofs has you focused only on the CNC machine, then you will only see half the solution. This is exactly why we provide several relevant programs with every hot wire and fast wire machine we sell. Some of the modules will transform the graphic design into the corresponding cutting data. Others will then control the actual cut. Even the calculation of prices or creating the right documentation for your projects is part of our incredible software. To manufacture roof insulation for flat and pitched roofs we recommend the following software:

Cutting data for sloped roof panels

multiROOF - slope

Internet based cloud software for roofs, to create the corresponding cutting data for your machine from the CAD roof pitch plans.

  • Extremely easy to use
  • Import of all data of the gradient roof plan
  • Creating of cutting data
  • Optimizing materials
  • Runs in modern internet browsers as cloud based software (SaaS)
Ridge&Valley boards

multiROOF - Ridge&Valley

2.5D CAM Software that actually helps you to calculate the control data for ridge and valley panels in 3 axes without any drawings.

  • Calculate the track distance for ridge and valley panels " Extremely easy to use
  • No drawings necessary
  • Programming via Paramter
  • Also incorporates compensation for material loss through burn-off
  • Runs in modern internet browsers as cloud based software (SaaS)
Two-dimensional EPS contours with entry cut

multiCUT - 2.5D

This cloud based software calculates the cutting data for your 2-5D objects with up to 4 axes from the provided DXF/PLT data.

  • Calculation of cutting data for standard 2D objects
  • Optimized for attic insulation, insulation wedges and roof edge wedges
  • Extremely easy to use
  • G-code calculation from 2D export (DWG/DXF/PLT)
  • Also incorporates compensation for material loss through burn-off
  • Runs in modern internet browsers as cloud based software (SaaS)

Astonishment - free of charge

Free technical support

That's enough theories for today! Why don't you come and visit us in our competence center in Ilmenau in Germany to watch a live presentation of our hot wire and fast wire cutting machines in action - and free of charge! You will be surprised just how much is possible with our complete hardware and software solutions. And just how easy it really is! We will be more than happy to answer all your questions in person, over the phone or even via email. Why don't you give us a quick call or send us a quick message?


Other products that could be of interest for you

Cut3000S Serie

CUT 3000S

The all-rounder of our CNC Styrofoam cutting machines for boards, ashlars, cubes, balls, spheres, symbols, scenery, stucco and crown moldings etc. The possibilities are endless! Large cutting area, 4 axes cutting and lathe cuts and much more. Easy to use and a strong performer.

  • Four independent axes
  • Wire tensioner
  • Fast cutting - even of big blocks
  • Versatile and infinitely adjustable
  • Extendable: rotation table, lathe
CUT 3000S - 3D Production
GT1010S - EPS Schneide-Guillotine

EPS Guillotine Cutter

Semi-automatic hot wire cutting machine for the automated cross-cutting of Styrofoam blocks, profiles and Styrodur boards and panels. Operation is done by simply pressing a button. The working speed is freely adjustable at any point - even whilst cutting.

  • Operates by simply pressing a button
  • Optimized for standard panels, boards and blocks
  • Usable wire length up to 1,300 mm!
  • Sturdy steel construction (no Aluminum)
GT1010S - EPS Guillotine Cutter
SHD2000 - EPS Wire Recycler

EPS Wire Recycler

EPS Hot Wire Block Recycler. Cost effective recycling of Styrofoam waste into a re-usable packaging product. Transform your waste product into packaging foam, without dust or static charge.

  • Recycling size: 1.000 x 1.000 mm
  • Infinitely adjustable cutting temperature
  • 40 wires simultaneously
  • Individual cutting grid pattern
SHD2000S - EPS Wire Recycler