| Nominal effective width (mm) | 475 |
|---|---|
| Total width (mm) | 505 |
| Minimum length (mm) | 1500 |
| Maximum length (mm) | 15500 |
| Profile height (mm) | 30 |
| Raw material | 0.5 mm structural steel, 0.6 mm structural steel |
| Steel Grade | S280GD+Z |
| Fire classification | BROOF (RakMk E1) |
| Batten spacing (mm) | 300 |
| Kattolevyjen pinnoite | Premium 50, Standard 40 |
| Minimum roof pitch | 1:8 |
| Pellin väri | RR11 Spruce Green, RR21 Light Gray, RR22 Gray, RR23 Dark Grey, RR29 Red, RR2H3 Anthracite, RR32 Dark Brown, RR33 Black, RR750 Brick Red |

The new Progantti Acoustic Pro is a standing seam panel with a factory-integrated sound-dampening layer that complements the roof’s anti-condensation protection. It is a technically and visually finished roofing panel that reduces noise from the roof, improving living comfort and protecting structures from moisture – for decades to come.
- Steel thicknesses 0.5 mm and 0.6 mm.
- Available in Premium 50 and Standard 40 quality grades.
Additional information
Additional Information

Halls for agriculture, industry, and business operations
Benefits and advantages of Weckman steel halls
- Durable The safety of Weckman halls is based on Weckman's decades of experience in building for Finland's demanding, snowy conditions. The design of the halls is always based on a 50-year lifecycle approach.
- Versatile Practical, modern, functional, and spacious facilities for agricultural and industrial storage and production halls.
- Fast delivery, fast installation Weckman standard hall range for efficient construction. The most popular halls have been created as a standard range of stock products for fast and cost-effective construction.
ONLY FROM WECKMAN
The WECKMAN side-fastening solution allows for free thermal expansion of the roofing material and reduces bulging and noise in the roofing sheets.

The WECKMAN ventilation spring ensures sufficient ventilation of the roof within the Weckman ridge structure, even in cold weather. Moisture is removed through the ridge without condensing on the underside of the cladding, thus minimizing the risk of damage to the structures beneath the roof.



Impressive and high-quality Weckman Progantti Acoustic Pro standing seam roof

A quieter roof
The acoustic layer dampens noises caused by rain, wind, and thermal expansion.

Condensation protection as standard
The factory-installed supplementary condensation protection binds moisture and protects the sub-structures.

A clean choice
Antibacterial and mold-resistant material that prevents microbial growth and keeps the roof healthy.

Affordable and durable
Easy to maintain and long-lasting.

Refined and reliable
Progantti's advanced standing seam structure is easy to install.

Watertight even on low-pitch roofs
The seam structure ensures watertightness even at a 1:8 roof pitch without additional seals.

Wide selection
Several profile, color, and coating options, as well as raw material thicknesses.

Smaller carbon footprint
Smaller carbon footprint in manufacturing. Produced using solar energy.

For quieter living
The Acoustic Pro layer cuts down noise transmitted through the roof. The drumming of rain and noise caused by wind are dampened, increasing living comfort in all weather conditions.

Pre-integrated acoustic damping felt
The damping felt, factory-installed on the underside of the roofing sheet, acts not only as sound insulation but also as supplementary condensation protection together with the underlay structure, protecting the roof's components.

Structural benefits of Progantti
The Weckman side-fastener allows for free thermal expansion of the roofing material, which reduces bulging and noise. The seam structure is watertight, and the roof ventilates according to regulations even in cold weather.

An ecological choice
Available materials include SSAB Zero (made from nearly fossil-free recycled material) and SSAB GreenCoat®. Weckman's thin-sheet products are extensively manufactured using solar energy.
Technical specifications and roof accessories
The functionality of Weckman Progantti Acoustic Pro is based on the dimensioning and structure of the Progantti profile, factory-installed sound insulation, and supplementary condensation protection.


Progantti Roofing Sheet
Effective width 475 mm.

Smooth Ridge Flashing L=2 m
The widest ridge strip on the market makes installation easier and more flexible.

Ridge Sealing Strip L~464 mm
Promotes roof ventilation. Color RR23.

Gable Flashing L=slope length (up to 10 m, available only with Progantti orders)
An impressive, full slope-length strip (max 10 m) in one piece without joints.

Eaves Flashing L=2 m
The adjustable eaves flashing makes gutter installation easier and helps align the roof's eaves.

Full-Width Mitre Plate L=2 m
The full-width mitre plate ensures the Progantti roof stays watertight even on gentle slopes.

Sealing Tape
For sealing the mitre. Self-adhesive.

Side Connection Flashing L=2 m
For the edges where the roof meets the wall.

Junction Flashing L=2 m
Available pre-bent to right angle.

Galvanized Underlay Strip L=2 m
Essential under the gable flashing on eaves panels - prevents fascia boards from getting wet.

Sewer/Radon Vent Pipe
Insulated 110. Complete kit, includes Progantti penetration seal.

Ventilation Exhaust Pipe
Insulated 125/160 mm. Complete package, includes Progantti roof penetration seal.

Penetration Boot
25-70 mm, 50-100 mm, 90-150 mm, 125-200 mm

Roof Hatch
Access opening size 600 x 600 mm. Includes hinges and lock.

Ventilation Spring
Keeps ventilation gaps open in ventilated ridge structures, even in winter conditions.

Galvanized Side Bracket
Allows free thermal movement at the roof's edge areas, preventing the roofing sheet from buckling or making noise.

Upper Eaves Flashing L=2 m
For the ridge of a mono-pitched roof. Available pre-bent to the correct angle.

Hip Sealing Strip L=2 m
The perforated sealing strip prevents snow and water from reaching the substructure and promotes ventilation. Color RR23.

Roofing Screws 4.8 x 28
For the lower edge of mitre-cut roofing sheets and for fastening strips.

Progantti Screws, Stainless Steel 4.2 x 25
Guaranteed durable and safe quality
Complete your Weckman roof with an attractive and functional rainwater system. Gutters and downpipes are made from hot-dip galvanized steel coated with Pural on both sides. The benefits of this coating include excellent corrosion resistance, easy cleaning, and long-lasting appearance. Standard colors: white, red, dark gray, dark brown, and black.
DIMENSIONS

Downpipe
Downpipe set for 3.0 m eaves; eave heights over 3 m with extension pieces.
Gutter

Standard length
Standard length 3.0 m, 4.0 m, or 5.0 m. External bracket and gutter connector included as standard.


P13 Gutter


P13 End cap


P13 Gutter bracket, short


P13 Gutter bracket, long


P13 Gutter bracket, angled (1:3; 1:2.5; 1:1.15)


P13 Connector


P13 Outlet


P13 Internal corner


P13 External corner


P10 Upper bend


P10 Lower bend


P10 Discharge pipe


P10 Downpipe bracket


P10 Offset


P13 Downpipe 1.0 m and 2.3 m
Durable and safe Weckman roof safety products
Wall ladders ensure safe access to the roof. Roof walkways, in turn, guarantee a safe path on the roof for chimney sweeping, snow removal, antenna installations, and other maintenance tasks. Snow guards are designed to prevent damage caused by falling snow and to protect the roof coating. All roof safety products represent reliable, high-quality Finnish craftsmanship.
Ladders
Weckman ladders are manufactured from hot-dip galvanized oval tubing without welds. The rungs are made of round tubing. Wall ladders are available either powder-coated or galvanized, and roof ladders are powder-coated. Standard colors for roof and wall ladders: white, red, dark gray, dark brown, and black.



ROOF LADDER
Standard lengths: 1.2 m, 2.7 m, 3.3 m, 4.2 m, 4.5 m, 5.4 m, 6 m, 6.6 m, 7.5 m, and 8.4 m. The ladder set includes the ladder frame and roof fasteners.

WALL LADDER
Standard lengths: 1.2 m, 2.7 m, 3.3 m, 4.2 m, 4.5 m, 5.4 m, 6 m, 6.6 m, 7.5 m, and 8.4 m. The ladder set includes the ladder frame, handrails, and wall fasteners (for eaves widths of 85–100 cm).

EMERGENCY LADDER
1.2 m, 2.7 m, 3.3 m, 4.2 m, 4.5 m, 5.4 m, 6 m, 6.6 m, 7.5 m, and 8.4 m. Includes the ladder frame and wall fasteners.
Roof walkway
Roof walkways can also be used to build work platforms and steps on the roof. The Weckman roof walkway is safe, with snow permeability exceeding 50%, and is Class 2 rated, allowing for the attachment of a safety rope. Roof walkways are powder-coated. Roof-profile-specific fasteners. Standard colors: dark gray, red, dark brown, black, and brick red.




ROOF WALKWAY
Standard lengths: 1.21 m (3 roof fasteners), 2.47 m (3 roof fasteners), and 2.97 m (4 roof fasteners).
Snow guard
A snow guard is an essential product in Finnish conditions above walkways. The Weckman tubular snow guard is manufactured from hot-dip galvanized steel. The snow guard is delivered either galvanized or powder-coated. Two oval tubes, four roof fasteners according to the roof sheet type. Standard colors: dark gray, red, dark brown, black, and brick red.




SNOW GUARD
3,000 mm

Weckman quality is ensured by manufacturing in accordance with the ISO9001 quality system. You can also recognize Weckman quality by the CE marking, as all our steel products meet the requirements of the SFS-EN 14783:2006 and SFS-EN 1090-1:2009+A1:2011 standards. Every one of our employees has internalized our goal of maintaining high-quality and flawless performance.










