ASTL concrete fastener for tapered insulation
Are you looking for a fastener for tapered insulation on concrete roof structures?
The adjustable fastener ASTL is the tube-screw combination for your project. A worldwide known fastening system that is very popular - thanks to the unique advantages of the tube and screw.
Work easier with the Guardian ASTL
- 100% step-security
- Just two simple work steps:
1: drilling
2: fastening - Thanks to the special telescopic nut, you need fewer lengths in stock or per project
- Very suitable for roofs with large height differences
- Very suitable for renovation roofs with large differences in thickness
- No grit in the drillhole
- Easy to press the tube in the insulation
- Proven quality since 2013!
ASTL fastener for tapered insulation: Technical Specifications
- Bride up to 110 mm of tapered insulation with one lenght!
- Calculation values of 600 - 800 Newton!
- For insulation thicknesses from 70 to 860 mm
- Pre-drill with a Ø 5,0 mm drill with special stopper
- To be processed with Bit extender for an ergonomically working position
- Available in two sizes: R45 and R75
Proven quality
The ASTL fastening system is worldwide known and popular! Thanks to the telescopic effect and the strong, durable nut within the tube, the Guardian ASTL offers durability and 100% step-security
Thanks to its telescopic properties, the tube springs along with the insulation. The screw is free in the tube and therefor can move with the roof membrane. This makes it possible to compress the insulation, for example when walking on the roof, without damaging the roof membrane:
Applications of the ASTL
This adjustable fastener is ideally suited for:
- tapered insulation
- fastening of roof systems on concrete constructions with height differences
- renovation projects with large differences in the existing roofing membrane and insulation thickness
Although the adjustable fastener is only a small part of a roof, it is a very important part. By choosing a sustainable and qualitative solution such as the ASTL, you invest in much shorter processing times during installation and much smaller risks of damage and risk during the entire life of your flat roof.
Make your work easier!
Our experts are happy to provide you with more information about the Guardian ASTL.
Take a look at the ASTL product page
View the use of the Guardian ASTL in practice in project Leidsenhage!