Weckman Progantti
Standing Seam Roof

THE QUIETEST NEXT-GENERATION STANDING SEAM ROOF

Weckman Progantti is the latest demonstration of Finnish sheet metal craftsmanship, the most advanced standing seam roofing on the market. Innovative structural solutions make Progantti the quietest and most ventilated roofing system. A standing seam roof refined down to the smallest detail, whose unparalleled installation system and understated elegant appearance ensure successful results for all roofs.

Steel thicknesses 0.5 mm and 0.6 mm.

Available in Premium 50 and Standard 40 quality grades.

Pine Green RR11, Pebble Gray RR21, Mountain Gray RR23, Cottage Red RR29, Walnut Brown RR32, Nordic Night Black RR33, Tile Red RR750.

Impressive and high-quality Weckman Progantti standing seam roof

Quiet

The Progantti roofing package is a quiet system.

Ventilated

Roof ventilated according to regulations in all conditions.

Watertight even on low-pitch roofs

The seam structure ensures watertightness even at 1:8 roof pitch without additional sealants.

Durable

Progantti Premium roofing with up to 50-year durability rating.

Beautiful roof

Thanks to finished details, the Progantti roof is a beautiful whole.

Easy installation

Advanced standing seam structure facilitates installation.

Affordable

Durable, easy to maintain, and long-lasting.

Wide Selection

Multiple profile, color, and coating options as well as material thicknesses.

Weckman Progantti is manufactured using solar energy

70-80% of Weckman’s coated sheet metal products are manufactured in an environmentally responsible manner. SSAB GreenCoat® steel and Arcelor Mittal’s environmentally friendly products are part of Weckman Steel’s range. In the future, Weckman sheet metal will utilize fossil-free steel. Fossil-free steel production will reduce Finland’s carbon dioxide emissions by 7%.

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Technical Information and Roof Accessories

Weckman Progantti

Weckman Progantti

Nominal effective width

475 mm

Total width

505 mm

Minimum length

1500 mm

Maximum length

15500 mm

Profile height

30 mm

Raw material

0.5 or 0.6 mm structural steel

Steel grade

S280GD+Z

Fire class

BROOF (RakMk E1)

Minimum recommended roof pitch

1:8

Batten spacing

300 mm

Dimensions in accordance with SFS-EN 508-1 tolerances

ONLY FROM WECKMAN

The WECKMAN side-fastening solution allows the roofing material to expand freely with temperature changes and reduces buckling and noise in the roof sheet.

The WECKMAN ventilation spring ensures adequate roof ventilation in the Weckman ridge structure, even in cold weather. Moisture escapes through the ridge without condensing on the underside of the roofing, minimizing the risk of damage to the structures beneath the roof.

Weckman Progantti Roof Installation Accessories

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 according to the ISO9001 quality management system. You can also recognize Weckman quality by the CE marking, as all our steel products meet the requirements of standards SFS-EN 14783:2006 and SFS-EN 1090-1:2009+A1:2011. Every one of our employees has internalized our goal of keeping the quality of work high and error-free.

Weckman Premium 50

Weckman Standard 40

Weckman Progantti Installation