Užitečné odkazy
➜ Installation guides
➜ References
➜ Catalogue – Flat Roofs
➜ Catalogue – Green Roofs
➜ Brochure – Flat Roof Pitch
➜ Brochure – Isover XH
➜ Static calculation sample
➜ FAQs
➜ Technical glossary
Not only is flat roof insulation required by law. It is also a way to improve the technical parameters of the structure. We at Isover develop and manufacture materials that will help you insulate your flat roof.
Make a choice from our range of mineral wool or polystyrene foam products or go for a complete system solution.
What will you get from insulating your flat roof?
● Energy saving: a roof with no heat insulation will let out a considerable amount of heat and the insulation will reduce that loss of heat.
● Comfortable indoor temperature: heat insulation also plays a role in summer when it prevents the overheating of the interior.
● Soundproofing: heat insulation will subdue the sounds coming from outside and the noise generated inside (a shop floor, for example).
● Fire resistance: appropriate thickness of the insulation can bring the building’s fire resistance to the required level.
Insulation and soundproofing options for flat roofs
Using mineral wool (MW)
Basalt wool boards are ideal for insulating flat roofs. This is for several reasons: they are excellent thermal insulators and sound dampers, they are vapour-permeable, water-repellent and non-flammable. Their main applications are in non-walking roofs, but Isover also has solutions for roofs that require frequent maintenance.
Using expanded polystyrene (EPS)
Polystyrene is a great heat insulator and has high compressive, tensile and bending strength. It is lightweight and has a high step-on breaking resistance. Isover EPS boards are among the insulators most widely used for flat roofs. In lightweight roofing, EPS needs to be combined with mineral wool to ensure the required fire resistance of the structure.
Lightweight fire-resistant roofs
Combining the properties of mineral wool and those of foam polystyrene, the special SG Combi Roof system is designed for heat-insulating lightweight trapezoidal sheet roofs. Unlike the mineral wool insulation alone, this system is lighter and has a higher step-on breaking resistance. Builders will also appreciate the favourable cost/performance ratio.
Lightweight sound-absorbent roofs
The ideal choice for new hall-like structures is the Isover Roof Acoustic system solution. It has a low weight, high sound absorption and mechanical resistance, which makes the system suitable for sports and manufacturing halls. The system’s insulator is mineral wool or a combination of mineral wool and foam polystyrene.
Green roofs
Green roofs have several functions: they prevent indoor temperature fluctuations throughout the year, retain rainwater, subdue noise and refresh the urban environment. At Isover, we manufacture several green roof systems and add to them our own hydrophilic mineral wool. The hydrophilic wool substitutes the substrate to a degree.
How much does insulation cost? Ask us for a free estimate
Our technical specialists will be happy to help you choose the material, calculate the necessary quantity and approximate prices, and will also direct you directly to the nearest dealer.
The service is completely free.
[email protected]
+420 226 292 221
I want advice
Remember the correct pitch
A flat roof must have a sufficient pitch, otherwise there is a risk of water remaining on the surface and this causing other problems. The recommended pitch is 2%. This can be achieved by using Isover mineral wool or foam polystyrene pitched boards (wedges).
We can prepare a layout plan for you.
A layout plan is integral part of every laying job. In order to achieve the best possible combination of a technical solution and the final price, our technical department provides designers, clients and builders with pertinent plans.
This plan and the bill of materials is provided free of charge, usually within 3 working days of receiving complete documents.
The plan clearly shows the final consumption of boards including the pitch and watershed directions. This helps to avoid the incurring of extra costs. After the layout drawing and a quotation are approved by the client or the builder, the pitched boards are immediately ordered and added to production line-up.
Creating the pitch using EPS
Milena Skalská Rejlová – Technical Specialist
📞 +420 602 115 649
✉️ [email protected]
Creating the pitch using MW
Roman Jahoda – Market Manager
Please send us the following to receive your pitch design:
● your roof’s ground plan and cross-section with dimensions and dimensioned inlet positions as PDF, JPG or DWG file
● parapet heights
● minimum and maximum heat insulation thickness
● minimum roof pitch required
● existing roof pitch
● type of pitched layer and waterproofing fastening
● type of waterproofing
● type of designed insulation (EPS, MW) for pitched and base boards
● description of the base layers
● other information (deadlines, contact persons...).
Other flat roof insulation materials
Isover LAM 50
A new generation of MW insulator systems for the heat-insulating assembly of flat roofs made of vertically oriented mineral fibers.
Isover R
Isover R boards are intended for flat roof systems as a bottom layer.
Isover XH
Isover XH boards are suitable as the top layer of flat roofs with the highest pressure load requirements and frequent traffic.
Isover TRV
Isover TRV trapezoidal infills are an ideal addition to light flat roofs on trapezoidal sheets. Sheet metal wool filled with mineral wool improves the overall thermal and technical properties of the roof and also contributes to higher air sound insulation of the roof structure.
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