Use of AKU®-DUR PVC-U Hollow Rods for the Installation of Sun Protection Systems in Thermal Insulation Composite Systems

The attachment of sun protection systems such as awnings in thermal insulation composite systems (ETICS), for example made of polystyrene, presents a particular challenge.

Conventional fastening methods can damage the insulation or provide insufficient stability. This is where hollow rods made of AKU®-DUR PVC-U come into play, enabling safe and efficient installation.

Background Information

Thermal insulation composite systems often consist of materials such as expanded polystyrene (EPS, Styrofoam) or mineral wool, which have excellent insulation properties but are not suitable for directly attaching heavy loads.

When installing awnings or other sun protection systems, it must therefore be ensured that the load is securely anchored in the supporting wall without damaging the insulation or creating thermal bridges.

Hollow rods made of AKU®-DUR PVC-U (unplasticized polyvinyl chloride) offer an innovative solution here.

They are used as spacers or reinforcement elements within the insulation layer and enable stable attachment of the brackets.

Advantages of Using AKU®-DUR PVC-U Hollow Rods

Secure Load Distribution:

- The hollow rods transfer the forces of the screw connection to the supporting wall without damaging the insulation.
- High load-bearing capacity and dimensional stability ensure secure fastening of heavy sun protection systems.

Thermal Bridge Prevention:

- Unlike metallic fastening elements, AKU®-DUR PVC-U hollow rods conduct minimal heat, reducing heat loss and condensation formation.

Simple assembly:

- The hollow rods can be easily integrated into the thermal insulation composite system.
- They are easy to process and adaptable to various insulation thicknesses.

Weather Resistance and Durability:

- AKU®-DUR PVC-U is corrosion-free, UV-resistant, and withstands weather influences, improving the durability of the fastening systems.

Cost Efficiency and Sustainability:

- By avoiding complex special fastenings and reducing heat loss, this method saves costs in the long term.
- The longer service life of the fastenings contributes to sustainability.

Conclusion

Hollow rods made of AKU®-DUR PVC-U offer a reliable and economical solution for the installation of awnings and other sun protection systems in thermal insulation composite systems.

They enable secure anchoring without compromising insulation properties, reduce thermal bridges, and ensure long-lasting attachment.

This makes them an ideal choice for modern facade constructions with ETICS.

Our AKU®-DUR PVC-U hollow rods are particularly distinguished by:

high mechanical strength, rigidity and hardness
Good electrical insulator
High chemical resistance
self-extinguishing
Low water absorption
good adhesion and paintability
Low toughness
Only partially weather-resistant

Available in as well as available


Abstandshalter	nicht lagernd, Mindestmenge auf Anfrage
Abstandshalter	Lagerware ab Werk, Zwischenverkauf vorbehalten MBM auf Anfrage


Material	Farbe	AØ x IØ	Länge	Toleranzen							Gewicht
Material	Farbe			mm	mm	AØ min.	AØ max.	IØ min.	IØ max.	kg/m
PVC-U	dunkelgrau	15 x 5	2000	+0,2	+0,8	-0,2	-0,8	0,264
PVC-U	dunkelgrau	20 x 6	2000	+0,4	+1,1	-0,4	-1,1	0,444
PVC-U	dunkelgrau	22 x 6	2000									0,574
PVC-U	dunkelgrau	25 x 8	2000									0,680
PVC-U	dunkelgrau	30 x 10	2000									0,963
PVC-U	dunkelgrau	35 x 15	2000	+0,6	+2,0	-0,6	-2,0	1,310
PVC-U	dunkelgrau	40 x 15	2000									1,660
PVC-U	dunkelgrau	45 x 20	2000									1,990
PVC-U	dunkelgrau	50 x 20	2000									2,470
PVC-U	dunkelgrau	50 x 25	2000									2,230
PVC-U	dunkelgrau	55 x 25	2000	+0,8	+2,5	-0,8	-2,5	2,900
PVC-U	dunkelgrau	60 x 30	2000		+2,5		-2,5					3,450
PVC-U	dunkelgrau	70 x 30	2000				+3,0		-3,0	4,510
PVC-U	dunkelgrau	75 x 50	2000									3,720
PVC-U	dunkelgrau	80 x 30	2000									6,540
PVC-U	dunkelgrau	80 x 40	2000									5,860
PVC-U	dunkelgrau	90 x 60	2000	+1,2	+3,6	-1,6	-5,0	5,350
PVC-U	dunkelgrau	100 x 50	2000									8,838
PVC-U	dunkelgrau	110 x 75	2000									8,220
PVC-U	dunkelgrau	125 x 50	2000	+1,5	+4,5	-2,0	-6,5	14,963
PVC-U	dunkelgrau	150 x 50	2000	+1,5	+4,5	-2,0	-6,5					23,800
PVC-U	dunkelgrau	160 x 100	2000	+1,8	+5,4	-2,2	-7,5	18,570
PVC-U	dunkelgrau	200 x 100	2000	+2,0	+6,0	-2,5	-8,5	35,700
PVC-U	dunkelgrau	230 x 150	2000	+3,0	+9,0	-3,0	-12,0	36,200

dark gray = iron gray ~ RAL7011

Other dimensions are available on request depending on quantity.

All product designations with ®=reg. Product names are the property of the respective manufacturer

Polyvinyl chloride-Unplasticized (PVC-U) is a form of polyvinyl chloride that is manufactured without the addition of plasticizers or other plasticizing substances.

Properties of PVC-U:

Hardness and rigidity:
PVC-U is characterized by its high hardness and rigidity. These properties make it particularly suitable for applications where structural integrity and strength are required.

Chemical resistance:
PVC-U is largely resistant to many chemicals, which makes it suitable for use in various industrial environments. It is particularly resistant to acids, alkalis and other aggressive substances.
Temperature Resistance:
PVC-U maintains its mechanical properties even at higher temperatures, making it suitable for applications in various temperature ranges.
Electrical Insulation:
PVC-U exhibits good electrical insulation properties, making it suitable for applications in the electrical industry, particularly for cable insulation.
Flame Resistance:
PVC-U is intrinsically flame-retardant and can be classified in various fire classes, making it suitable for certain fire protection applications.
Workability:
PVC-U can be formed using various processing methods such as extrusion, injection molding and calendering. This enables the manufacture of a variety of products for different applications.

Applications:
PVC-U is frequently used in construction for pipes, window profiles, doors, and other building elements. It is also used in the chemical industry, water supply, electrical industry and other technical applications.

The exact properties of PVC-U may vary depending on the manufacturer and formulation.
It is therefore advisable to refer to the specific technical data sheets and recommendations in order to select the right PVC-U product for a particular application.
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Disclaimer – Notice on the Use of Information or Instructions

This guide is intended solely for general information and support in applying the described procedure.

The specified values and steps have been created by experts and are based on our current experience.

Nevertheless, no guarantee can be given for completeness, accuracy, or applicability in each specific case.

The use of the instructions is at your own risk.

It is the responsibility of the user to check the suitability of the described methods for the respective purpose of use and to consider any additional safety or legal requirements if necessary.

Liability for damages resulting from the application of these instructions is excluded.