Lead Roof Flashing Repair Set – 400 × 370 mm, for Mast Penetrations up to Ø 60 mm
The AS41900 is a formable roof flashing repair set designed for suitable antenna mast and pipe penetrations through pitched roofs.
According to the available product data, the flashing is manufactured from rolled lead sheet approximately 1.0 mm thick and incorporates a zinc-sheet upstand for the mast penetration.
The overall size is approximately 400 × 370 mm.
The penetration is suitable for mast tubes up to Ø 60 mm, and the product data specifies use on roof pitches up to 56°.
Formable rolled lead sheet
The lead flashing can be shaped to follow many roof tile and roof covering profiles.
This makes the product useful for:
repair work
replacement of damaged mast flashings
new antenna mast penetrations
retrofit installations
Approx. 1.0 mm lead thickness
According to the product information, the rolled lead sheet is approximately:
1.0 mm thick
The material should be formed carefully and should not be repeatedly bent unnecessarily.
400 × 370 mm size
Overall dimensions:
approx. 400 × 370 mm
approx. 40 × 37 cm
The required overlap with the existing roof covering must be checked for the actual roof construction.
Zinc-sheet mast upstand
The zinc-sheet upstand forms the transition between the mast and roof flashing.
It is intended for mast tubes up to:
Ø 60 mm
Roof pitches up to 56°
According to the available product data, the flashing can be used on roof pitches up to:
56°
Actual suitability also depends on the roof covering, overlap and water drainage arrangement.
Weather-protected installation
The product helps create a weather-protected mast penetration when correctly integrated into the roof covering.
It should not be described as universally waterproof independent of installation quality and roof design.
Not a structural mast support
The AS41900 is a roof flashing component only.
It does not support the antenna mast mechanically.
The mast requires a separate suitable structural support such as a roof-rafter mount or other appropriate mast fixing system.
Water drainage must be maintained
The flashing should be integrated so that rainwater continues to flow correctly over the roof covering.
Correct upper, side and lower overlap is essential.
Underlay and secondary roof layers
Where an underlay, under-roof membrane or similar secondary water-management layer is present, that layer must also be treated correctly around the mast penetration.
Lead handling
Lead is a health-relevant material.
Recommended precautions include:
wear suitable protective gloves
wash hands thoroughly after handling
do not eat or drink while working with the material
avoid creating unnecessary dust
avoid dry grinding or similar dust-generating processing
Typical applications
The AS41900 can be used for:
satellite antenna mast penetrations
DVB-T/T2 antenna masts
DAB/DAB+ antenna masts
FM antenna masts
repair of existing roof flashings
retrofit antenna installations
suitable technical pipe penetrations
Technical specifications
Article reference: AS41900
Article number: 41900
EAN: 4050822419005
Product type: Roof flashing repair set
Flashing material: Rolled lead sheet
Lead thickness: Approx. 1.0 mm
Upstand material: Zinc sheet
Dimensions: Approx. 400 × 370 mm
Suitable mast diameter: Up to Ø 60 mm
Suitable roof pitch: Up to 56° according to product data
Structural mast support included: No
Package contents
1 × AS41900 lead roof flashing repair set with zinc-sheet mast upstand according to product configuration
Antenna mast, structural mast support, satellite dish, LNB, cable penetration components and additional installation accessories are not included.
