Page 6 of catalogue Flat roof tile of Dachziegelwerke Nelskamp GmbH

Classification of additional measures for the flat roof tile F 15 according to the basic rules of the German Roofing Trade, 22° regular roof pitch, minimum roof pitch 10°
Use of the attic. in particular for living Roof pitch in degrees (rafter pitch) no further increased requirement ≥ 22° ≥ 16° ≥ 12° ≥ 10° underlayment rainproof roof substructure rainproof roof substructure Higher requirements Design *with special roof shapes *with long rafters *with very jointed roof areas (e.g. through dormers. valleys. etc.) one further increased requirement underlayment underlayment rainproof roof substructure waterproof roof substructure Climatic conditions *exposed location *extreme locations *snowy areas *windy areas *special meteorological conditions two further increased three further increased requirements requirements overlapping or interlocked underlayment undercover overlapping or interlocked welded or undercover bonded undercover waterproof roof substructure waterproof roof substructure

rainproof roof substructure waterproof roof substructure

* The additional measures named in the table are minimum measures. With very high requirements and/or special local conditions a higher-value additional measure should be chosen (Leaflet for roof substructures, Table 1, German Roofing Trade Rules). Higher-value additional measures can always be used in place of the minimum measures.

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 ~ 40 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 4.7 ~ 3 5 mm ±

cm 4.7 ~ 3 5 mm ± th ng r le fte Ra

X

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.

Ridge/crest details
Ridge/crest clip No. 470/121 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)

Verge details
Also applies for the verge tile with outer web and 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)

The height of the ridge/crest lath is determined by the customer. Nominal cross-section at least 24 x 48 mm

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.