Weckman W-20K
corrugated sheet for roofing

Weckman W-20K
Durable Twenty-Gauge Roofing Sheet

Weckman W-20/990 is a closely corrugated and robust roofing sheet. Corrugated roofing panels are easy to handle and install.

Available in Premium 50, Standard 40, and Economy 30 quality grades, as well as galvanized.

Pine Green RR11
Light Gray RR21
Dark Gray
Red RR29
Dark Brown RR32
Black RR33
Brick Red RR750

W-20K roofing sheet benefits

Environmentally Friendly

Manufactured from 100% recyclable steel.

Durable

Long-lasting hot-dip galvanized or paint-coated steel. Up to 50-year quality rating.

Wide Selection

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

Affordable

Durable, easy to maintain, and long-lasting.

Technical Information and Roof Accessories

Weckman W-20K technical information

Weckman W-20K

Nominal effective width

990 mm

Profile height

20 mm

Maximum length

10 000 mm

Minimum length

400 mm

Minimum recommended roof inclination

1:7

Raw material

0,45–0,7 mm

Uses

Roofing sheet

Rib interval

300–1200 mm

Steel quality

DX51D+Z(0.45mm); S320GD+Z(0.5mm); S320GD+Z(0.6mm); S350GD+Z(0.7mm)

Fire rating

BROOF (RakMk E1)

Quality system

ISO-9001

Total width

~1030 mm

 

Dimensions according to SFS-EN 508-1 tolerances

BASIC PACKAGE

  • Roofing sheet
  • Harjalista, sileä
  • Gable flashing 160 mm
  • Screws 4.8 x 50 mm
  • Screws 4.8 x 28 mm (listojen kiinnitys)
  • Ridge seal

ACCESSORIES PACKAGE

  • Ridge ventilation piece
  • Overhang
  • Roof safety accessories
  • Drainage system

Weckman Corrugated Roofing Installation Accessories

Roofing Sheet

Profiled Ridge Flashing L=1.93 m

For tile-pattern roofs. Recommended for roof pitches
shallower than 1:2.

Smooth Ridge Flashing L=2 m

For corrugated roofs. For all roof pitches.

Gable Flashing L=2 m

Junction Flashing L=2 m

Available pre-bent to right angle.

Eaves Flashing L=2 m

Underlayment Flashing L=2 m

Essential at eaves edges under gable flashing - prevents fascia boards from getting wet.
Profile-specific.

Barge Board, Full Width L=2 m

Roof Hatch

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

Penetration Pipe Base Plate L=1 m

For corrugated roofs. Used together with insulated penetration pipes.

Hip End Cap

With profiled ridge flashing.

Sewer Ventilation Pipe

Insulated 110. Complete set, includes roof penetration and for corrugated roofs also base plate (no. 10).

Ventilation Exhaust Pipe

Insulated 125/160 mm. Complete package, also includes roof penetration and for corrugated roofs also base plate (no. 10).

Ventilation Cap

For profiled and smooth ridge flashing.

Y-Piece

With profiled ridge flashing.

T-Piece

With profiled ridge flashing.

Penetration Boot

25–70 mm, 50–100 mm,
90–150 mm, 125–200 mm

Profiled Ridge Flashing End Cap

Seals

Suitable seals are available for all Weckman profiles. Sealing tape 3 x 10 mm for side and longitudinal laps. Sealing mat for use with profiled ridge flashing at ridge and hip.

Roofing Screws 4.8 x 28

Roofing screws with sealing washers supplied galvanized and in standard colors.

Touch-Up Paint

25 ml, standard colors

Guaranteed durability and safety

Finish your Weckman roof with an impressive and practical drainage system. Trough gutters and gutter pipes are manufactured of hot galvanised steel, which is Pural-coated on both sides. The benefits of the coating are excellent corrosion resistance, good cleanability and durable appearance. Standard colours: white, red, dark grey, dark brown and black .

DIMENSIONS

Down pipe

Down pipe set for 3.0-metre eaves, eaves-heights of over 3 metres with extension parts.

Trough gutter

Standard length

Standard length Standard length 3.0 m, 4.0 m or 5.0 m. Outer bracket and overlap piece as standard.

P13 Trough gutter

P13 End piece

P13 Gutter bracket, short

P13 Gutter bracket, long

P13 Gutter bracket, angled (1:3; 1:2,5; 1:1,15)

P13 Overlap piece

P13 Gutter discharge

P13 Inner corner

P13 Outer corner

P10 Upper bend

P10 Lower bend

P10 Discharge pipe

P10 Downspout fastener

P10 Diversion

P13 Downspout pipe 1.0 m and 2.3 m

Safe and durable Weckman roof safety accessories

Wall ladders guarantee safe entry onto the roof. A roof bridge ensures a safe passage on the roof in connection with, e.g., chimney sweeping, snow dropping, antenna installations and other tasks on the roof. Snow breakers are designed to prevent damage caused by snow dropping and to protect the roof coating. All roof safety accessories are reliable and high-quality Finnish products.

Ladders

Weckman ladders are made of hot galvanised oval tubes without weldings. The steps are round tubes. Wall ladders come in powder-coated or galvanised styles and roof ladders are only available powder-coated.Standard colours for roof and wall ladders: white, red, dark grey, dark brown and black.

ROOF LADDER

Standard lengths 1,2m, 2,7m, 3,3m, 4,2m, 4,5m, 5,4m, 6m, 6,6m, 7,5m, 8,4m. The ladder set includes the ladder frame and wall mounts.

WALL LADDER

Standard lengths 1,2m, 2,7m, 3,3m, 4,2m, 4,5m, 5,4m, 6m, 6,6m, 7,5m, 8,4m. The ladder set includes upper arcs for the ladder frame and wall mounts (for an eaves width of 85–100 cm).

SAFETY LADDER

1,2m, 2,7m, 3,3m, 4,2m, 4,5m, 5,4m, 6m, 6,6m, 7,5m, 8,4m. Includes the ladder frame and wall mounts.

Roof bridge

A roof bridge can also be used for the construction of work platforms and stairs on the roof. Weckman roof bridges are safe, have a snow permeation capacity of over 50% and are classified as class 2, allowing the fastening of safety ropes. The roof bridges are powder coated. Roof profile-specific roof mounts. Standard colours: dark grey, red, dark brown, black, tile red.

ROOF BRIDGE

Standard lengths 1.21 m (3 roof mounts), 2.47 m (3 roof mounts) and 2.97 m (4 roof mounts).

Snow breaker

In Finnish conditions, snow breakers are necessary where people pass by.Weckman tube snow breakers are made of hot galvanised steel.The snow breaker is delivered either galvanised or powder-coated.Two oval tubes, four roof mounts according to the roof sheet.Standard colours: dark grey, red, dark brown, black, tile red.

SNOW BREAKER

3000 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 Economy 30