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Best Delta Dachfolie - Holiday Sale

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Last Updated - 18.12.2025

Best Choice

01

Hausa

HAUSA Underlay Sheet 220 g/m² Dark Blue 75 m² (1.5 m x 50 m) Underlay Sheet Platinum HU220SK Roof Film with 2 Adhesive Strips Highly Diffusion Open Waterproof Formwork Sheet Tear-Resistant Rain Proof

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9.9

Exceptional

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Main highlights

Technical data: with a water vapour permeability of 0.04 m and a weight of approx. 220 g/m² offers Hausa Platinum HU220 technical efficiency and aesthetic flexibility. It complies with fire protection class E and offers a water permeability of W1. The UV resistance is 3 months.
Product features: made from three layers of polypropylene fleece and an innovative functional film, the Hausa Platinum HU220SK underlay offers an optimal combination of water vapour permeability and waterproofing. The special anti-reflective coating minimises the negative effects of light reflections, while UV stabilisers slow down the ageing process of the membrane and thus ensure the longevity of the product.
Our product: Hausa Platinum HU220SK underlay sheet sets new standards in roofing technology. This highly flexible, four-layer web is characterised by its exceptional diffusion capacity (SD value 0.04 m) and robustness. It is not only tear-resistant and weather-resistant, but also completely waterproof, making it the ideal choice for any type of roofing. The Platinum HU220SK underlay is recommended for use in roof constructions with solar panels.
Contents: 1 x 75 m². Each roll of Hausa Platinum HU220SK is 1.5 m wide and 50 m long, which corresponds to an area of 75 m², with a surface weight of 220 g/m²; with 2 adhesive strips.
APPLICATION: The versatility of the Hausa Platinum HU220SK makes it the perfect solution for ventilated and unventilated roofs. Whether under ceramic, concrete, clay or sheet roofs, the sheet can be laid directly on the thermal insulation or wooden construction without the need for a ventilation gap. Its light weight makes it easier to use and lay and increases work safety on the roof.

151,95 €
02

ALMO

ALMO Underlay Roof 150 g/m² | 37.5 m² (1.5 x 25 m) Diffusion-Free & UV-Resistant | Water-Repellent Roof Film with 2 Self-Adhesive Strips | Facade Sheet & Underlay Sheet for Roof Sealing

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

️ Versatile – In addition to the classic application as a underlay sheet, the ProLine 150 is also suitable as a façade membrane for closed facades. It offers flexible applications in the roof and wall area.
️ Reliable weather protection - The underlay can be laid directly on the thermal insulation or wooden constructions. It effectively protects against driving rain, wind load and UV radiation.
️ High density foam and foam - Thanks to its breathable structure, the roof film supports optimal moisture exchange to the outside, allows a particularly high water vapour permeability (SD value 0.02 m) and reliably prevents the formation of mould.
️ Extremely tear-resistant 3-layer construction - The robust construction of two fleece layers and a medium special membrane ensures exceptional tear resistance, even under high mechanical stress.
️ Easy and quick to use: With a surface weight of 150 g/m², the ALMO underlay offers an ideal balance of stability and flexibility. The integrated self-adhesive strips allow safe and time-saving installation on the roof.
️ Certified quality: ALMO ProLine 150 meets the requirements of the ZVDH classification UDB-A / USB-A and meets the highest standards for roof sealing.

89,25 €
03

Generic

Roof Underlay Sheet, Roof Film, Underlay Sheet, Vapour Barrier, Underlay Sheet 1.5 m x 10 m, 25 m, 50 m Underlay Sheet Veltec 100 g/m² Roll 75 m² Roof (15 m² (10 m x 1.5 m))

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

SIZE: One roll corresponds to an area of 75 m² and has the specific dimensions 1.5 m x 50 m. Calculate how many rolls you need to get started with our product as soon as possible.
APPLICATION: It has been developed for use on pitched roofs as a waterproofing layer and can also be used as a wind protection layer for walls in houses with wooden frame construction. The above features indicate roofing sheets as a protective layer laid directly on the rafters or as a full formwork under the roofing.
Our product: Veltec 100 is a new three-layer roofing sheet, which is manufactured using a modern lamination process on the latest machines. This makes it possible to offer a product with high mechanical strength, high vapour permeability and waterproofing.
Main features: Veltec membranes can be laid in direct contact with the thermal insulation installed in the roof. For this reason, we recommend the use of membranes when building usable attics. Water vapour permeability: Class W1
Detailed information: our underlay sheet offers a surface weight of 100 g/m² ± 20%. Application temperature: -30 ÷ 80°C. Tensile strength: in longitudinal direction 350 N/50 mm, in transverse direction 100 N/50 mm. Water vapour permeability (Sd) 0.015 m. Additional fire behaviour class F.

22,00 €
04

Hausa

HAUSA Classic HU100 Underlay Sheet 100 g/m² Flexible Three-Layer Highly Diffusion Open Underlay Sheet 1.5 m x 50 m (75 m²) Tear-Resistant Weather-Resistant without Self-Adhesive Strips Waterproof

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Technical data: water vapour permeability, SD value: < 0.02 m (+0.03; -0.01); weight: approx. 100 g/m² (+/- 10%), colour: grey, fire material class: E; resistance to water passage: class W1, UV resistance: 3 months; tensile strength in longitudinal direction: 150 (+30; -30) [N/50 mm], tensile strength in transverse direction: 85 (+20; -20) [N/50 mm]; elongation in longlonglonglongdirection direction 80 (+30; -30) [%]; elongation in transverse direction: 150 (+50; -50) [%]; resistance to tearing: 100 (+30; -30) [N]
Store in premises in a dry place, away from frost and heat. Keep out of weather conditions and direct sunlight. Avoid contact with wood impregnation that has not yet dried out.
Product features: Hausa Classic underlay HU100 is made from two layers of polypropylene fleece and a functional film and is equipped with a special anti-reflective coating that prevents the negative effects of light reflections. The functional membrane contains UV stabilisers that slow down their ageing process.
Our product: Hausa Classic HU100 is a flexible, three-layer, highly diffusion-open underlay, underlay and formwork sheet with high water vapour permeability (SD value <0.02 m) and high durability. Tear-resistant, weather-resistant and completely waterproof.
Contents: 1 x roll 1.5 m x 50 m (75 m²) underlay sheet Hausa Classic HU100 without self-adhesive strips; surface weight: 100 g/m²; on the product there are special prints that allow the formation of overlaps.
APPLICATION: Hausa underlay HU100 can be used on all ventilated and unventilated roofs under a variety of roof coverings such as ceramic/concrete/clay and sheet tiles etc. It can be laid directly on the thermal insulation or on the wooden construction (formwork) (without ventilation gap). Thanks to the light weight of the product, working on the roof is easy and safe.

61,95 €
Value for Money

05

Aquagart

Aquagart High Quality Diffusion-Open Underlay Sheet, 50 m Formwork Sheet, Black, 130 g/m², 1.5 m Wide, SD Value: 0.02 m, Roof Film, Waterproof & Breathable, Roofing Felt Roofing Felt

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The sealing membrane with a fire behaviour of class E offers a three month UV stability and a water vapour permeability of 2000 g/m²/24 h
The roof underlay is made of high-quality material and impresses with its enormous stability, extreme tear resistance and high steam diffusion
The 3-layer roof film is waterproof and breathable thanks to a breathable PE membrane between the two PP fleece layers
The 1.5 m wide black underlay has a surface weight of 130 g/m, a resistance to water passage: class W1 and an SD value of 0.02 m
Our underlay film is applied directly to the rafters or roof formwork, or can also be laid directly on the thermal insulation

65,69 €
06

ALMO

ALMO Diffusion-Open UV Underlay 37.5 m² (1.5 x 25 m), Facade Sheet, 130 g/m², Underlay Sheet, Water-Repellent and UV-Resistant with Integrated Self-Adhesive Seam

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile – In addition to the classic application as a underlay sheet, the ProLine 130 is also suitable as a façade membrane for closed facades. It offers flexible applications in the roof and wall area.
High density foam and mould: thanks to its breathable structure, the roof film supports optimal moisture exchange to the outside, allows a particularly high water vapour permeability (SD value 0.02 m) and reliably prevents the formation of mould.
Extremely tear-resistant 3-layer construction - The robust construction of two fleece layers and a medium special membrane ensures exceptional tear resistance, even under high mechanical stress.
Easy and quick to use: With a surface weight of 130 g/m², the ALMO underlay offers an ideal balance of stability and flexibility. The integrated self-adhesive strips allow safe and time-saving installation on the roof.
Certified quality: ALMO ProLine 130 meets the requirements of the ZVDH classification UDB-A / USB-A and meets the highest standards for roof sealing.
Additional weather protection - The underlay sheet can be laid directly on the thermal insulation or wooden constructions. It effectively protects against driving rain, wind load and UV radiation.

77,95 €
07

AMF Life

AMF Life Roof Sheet, Roof Foil, Underlay Panel, Vapour Blocker, 115 g/m², Anthracite, Width 150 cm, Length Selectable

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Very easy, quick processing, easy to cut without fraying, protective layer for thermal insulation from wind and moisture.
Multi-layer quality fleece, breathable, UV-stabilised, waterproof, anti-mould, weather-resistant, high vapour diffusion.
Long life: extremely robust and durable, 115 g/m² strong material, tear-resistant, anti-mould thanks to diffusion-open material
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24,49 €
08

EraGreen

EraGreen Premium Underlay 110 g/m² – Roof Film in 1.50 m Width (Sold by the Metre) UV-Stable – Flexible Diffusion-Open Underlay Sheet – Formwork Sheet Tear-Resistant Weather-Resistant and Waterproof

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Waterproof: protects the roof construction and insulation from rain, snow and other elements
WEATHER RESISTANT - Provides up to 3 months of protection from the elements during the construction phase.
UV RESISTANT - Long lasting protection from harmful sun rays.
Tear-resistant: thanks to the reinforced construction, particularly durable.
Diffusion Open: Allows water vapor to be dissipated to avoid moisture damage.

2,94 €
09

Generisch

Veltec 100 Light Underlay Sheet SD = 0.03 m 100 g/m², 3-Ply, Roof Underlay Sheet, Roof, Vapour Barrier, Roof Film, 1.5 m x 10 m, 25 m, 50 m

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Product features: Veltec 100 underlay is made of two layers of polypropylene fleece and a functional film and is equipped with a special anti-reflective coating that prevents the negative effects of light reflections. The functional membrane contains UV stabilisers that slow down their ageing process.
Our product: Veltec 100 is a flexible, three-layer, highly diffusion-open underlay, underlay and formwork sheet with high water vapour permeability (SD value < 0.03 m) and high durability. Tear-resistant, weather-resistant and completely waterproof.
Main features: Veltec membranes can be laid in direct contact with the thermal insulation installed in the roof. For this reason, we recommend the use of membranes when building usable attics. Water vapour permeability: Class W1
Detailed information: our underlay sheet offers a surface weight of 100 g/m² ± 20%. Application temperature: -30 ÷ 80°C. Tensile strength: in longitudinal direction 350 N/50 mm, in transverse direction 100 N/50 mm. Water vapour permeability (Sd) 0.015 m. Additional fire behaviour class F.
Contents: 1 x roll 1.5 m x 50 m (75 m²) underlay Veltec 100 without self-adhesive strips; surface weight: 100 g/m²; on the product there are special prints that allow the formation of overlaps.

21,00 €
10

BMD

BMD 120 g/m² underlay with 2 adhesive edges, 37.5 m², 1.5 m x 25 m, formwork sheet, SD value 0.02 m, highly diffusible, waterproof and tear-resistant underlay with CE seal

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile uses: whether on ventilated or unventilated roofs, under ceramic, concrete, clay or sheet metal tiles - the BMD 120 underlay is versatile. It can be laid directly on the thermal insulation or on wooden structures (formwork) without ventilation gap
Resistant to ageing: thanks to its high tear resistance and weather resistance, the BMD 120 underlay remains stable and functional even with long-term use
Standards and classifications: it achieves the highest water resistance class W1, as well as the fire material class E according to EN 13501-1 (requirement according to § 26 of the MBO and respective state building regulations LBO) - a product that protects your roof and keeps what it promises
Protection and safety: even under extreme weather conditions, it offers reliable protection against driving rain, snow, wind and dust - in addition, UV stabilisers ensure an extended service life and prevent premature material fatigue
Optimal air circulation: thanks to the three-layer construction made of polypropylene fleece and functional membrane, which ensures outstanding water vapour permeability (SD value <0.02 m) and prevents mould formation due to moisture damage

49,90 €