Page 6 of catalogue Flat tile of Dachziegelwerke Nelskamp GmbH

Roof Lathing in conjunction with ridge flaps (dry ridge)
Supporting laths: The following min. cross-sections must be used: (rules for roofing, notes on wood and timber materials) Nom. cross-sections of support laths 30 x 50 mm 40 x 60 mm Rafter intervals (unit spacing) ≤ 80 cm ≤ 100 cm Sizing class S 10 S 10
Eaves lath ~ 45 cm to end of rafter

Counter-laths: Rec. thickness of counter-laths acc. to rules for roofing (notes on wood and timber materials): Rafter length up to 8 m up to 12 m over 12 m Rec. thickness 24 mm 30 mm 40 mm
cm 9.1 ~ 3 0 mm ±1

cm 9.1 ~ 3 0 mm 1 ±

X

th ng r le fte Ra

Distance upper support lath to ridge crown (see table)

RP ≤ 30° > 30° - ≤ 45° > 45° X ~ 40 mm ~ 35 mm ~ 30 mm Mean covering length The dimensions are planning figures and should be checked before laying.

Details eaves design
The dimensions are planning figures and should be checked before laying depending on the design and local circumstances.

1 With gutter & vent element
r fte f ra do en

2 High-level gutter (recommended for flat roof pitches < 22°)
Tile overhang in gutter max. 1/3 of gutter width
of end m to 37 c th ~ s la Eave r rafte

h~ lat ves Ea

cm 45

to

Vent element

Eaves plate Fresh air Drip plate

Ridge/crest details
Ridge/crest clip No. 470/41 for ridge tile standard The height of the ridge/crest lath is determined by the customer. Nominal cross-section at least 24 x 48 mm 0,6 kN/m Each ridge tile: wood screw, d = 4.5 mm screw depth: 24 mm Copper roll/Alu roll 2000: Rec. for ridge flap band width 290 mm (narrow undercover) Rec. for ridge flap band width 330 mm (broad undercover) Applies for the standard ridge and cornered ridge: Ridge raised by ~ 1 cm to ventilate the flat tiles

Verge details
Also applies for the double flap! 0,6 kN/m Each verge tile: wood screw, d = 4.5 mm screw depth: 24 mm The screw connection in the verge should have a permanently elastic seal particularly for flat roof pitches (e.g. plumber Screws)

Ridge lath holder

Projects at least 3 cm over outer edge gable wall. Ridge tiles should be fastened to the furring. Requirement: 1 wood screw and 1 clip Projects at least 1cm over wooden structure.