KAWA R760 Screw Fixing
RIDGE CAPPING (OPTIONAL NOTCHING)
FLASHING
KAWA R760 WALL CLADDING
ROOF PURLIN
SCREWS
HEXAGONAL GALVANISED CHICKEN WIRE MESH
ALUMINIUM FOIL
INSULATION
KAWA R760 ROOF SHEET
The KAWA R760 is a 5-corrugation profile suitable for roof and wall cladding. Each corrugation incorporates a reinforcing web to give the profile extra strength. The custom cut sheet can be applied to industrial, commercial and even residential buildings.
RIDGE CAPPING (OPTIONAL NOTCHING)
FLASHING
KAWA R760 WALL CLADDING
ROOF PURLIN
SCREWS
HEXAGONAL GALVANISED CHICKEN WIRE MESH
ALUMINIUM FOIL
INSULATION
KAWA R760 ROOF SHEET
The KAWA R760 is a 5-corrugation profile suitable for roof and wall cladding. Each corrugation incorporates a reinforcing web to give the profile extra strength. The custom cut sheet can be applied to industrial, commercial and even residential buildings.
Installation Method
- Aesthetically attractive profile with reinforcing web on the corrugations spaced by wide pans, makes it uniquely distinct from other roofing.
- Steel sheets are strengthened because of corrugations. With the additional reinforcing web, the strength of the KAWA R760 profile is further enhanced.
- Aesthetically attractive profile with reinforcing web on the corrugations spaced by wide pans, makes it uniquely distinct from other roofing.
- Steel sheets are strengthened because of corrugations. With the additional reinforcing web, the strength of the KAWA R760 profile is further enhanced.
Roof Pitch
The minimum recommended roof pitch for the KAWA R760 profile is 3˚. For sheet lengths greater than 31 metres, the pitch should be increased by 1˚ for every 5 metres of additional length.
End Laps
Should end laps be inevitable, have a minimum of 250 mm end lap for a 5˚ roof pitch and below, and a minimum 200 mm end lap for a roof pitch exceeding 5˚. Ensure watertightness by applying a good sealant to the end lap.
Stop Ending & Lipping
Stop ending sheets prevent water from entering the building through the flashingor capping. It is done by a turn-up tool, turning up the tray between crests atthe ridge end of the sheet (Fig.1). Lipping is a process whereby a turn-downtool is used to turn down the tray between crests at the eave end of the sheet(Fig.2). Lipping prevents water from being driven into the building by wind orcapillary action. Both of these operations can be carried out before or after theinstallation of the sheets. In the case of the latter, ensure that sufficient clearanceis available for the movement of the turn-up/turn-down tool. It is recommendedto lip pans of all sheets that have a slope less than 5
Roof Pitch
The minimum recommended roof pitch for the KAWA R760 profile is 3˚. For sheet lengths greater than 31 metres, the pitch should be increased by 1˚ for every 5 metres of additional length.
End Laps
Should end laps be inevitable, have a minimum of 250 mm end lap for a 5˚ roof pitch and below, and a minimum 200 mm end lap for a roof pitch exceeding 5˚. Ensure watertightness by applying a good sealant to the end lap.
Stop Ending & Lipping
Stop ending sheets prevent water from entering the building through the flashing or capping. It is done by a turn-up tool, turning up the tray between crests at the ridge end of the sheet (Fig.1). Lipping is a process whereby a turn-down tool is used to turn down the tray between crests at the eave end of the sheet (Fig.2).
KAWA R760 Valley Fastening as a Wall Cladding
KAWA R760 Accessories
Convex and Concave Roof
The KAWA R760 Crimped Curved Convex and Concave profile adds beauty and functionality to the building envelope with advantages as follows:-
- Fewer structural supports required for fascias and roofs.
- Aesthetically attractive exterior finish with simple installation.
- Reduced number of flashings and cappings.
Ensure that the sheets are lifted onto the roof the right way up with the male and female ribs in the desired direction, otherwise sheets will have to be orientated during installation.
Where a few sheets are required to cover the whole length of the roof due to handling or transport considerations, installation shall start from the bottom to the top before moving on to the next run of roof. At the end laps, a minimum of 250 mm end lap is required for a 5˚ roof pitch and below, and a minimum of 200 mm end lap is required for a roof pitch exceeding 5˚. To ensure watertightness, apply a good sealant to the end lap.
For the KAWA R760 Crimped Curved profile, valley fixing of the sheet is recommended only on the fascia purlin. For the rest of the purlins, screws should be fixed on the crests of the ribs.
Diagram showing the radius of curvature of the KAWA R760 crimped curved profile
Typical assembly drawing of the KAWA R760 crimped curved profile
Convex and Concave Roof
The KAWA R760 Crimped Curved Convex and Concave profile adds beauty and functionality to the building envelope with advantages as follows:-
- Fewer structural supports required for fascias and roofs.
- Aesthetically attractive exterior finish with simple installation.
- Reduced number of flashings and cappings.
Ensure that the sheets are lifted onto the roof the right way up with the male and female ribs in the desired direction, otherwise sheets will have to be orientated during installation.
Where a few sheets are required to cover the whole length of the roof due to handling or transport considerations, installation shall start from the bottom to the top before moving on to the next run of roof. At the end laps, a minimum of 250 mm end lap is required for a 5˚ roof pitch and below, and a minimum of 200 mm end lap is required for a roof pitch exceeding 5˚. To ensure watertightness, apply a good sealant to the end lap.
For the KAWA R760 Crimped Curved profile, valley fixing of the sheet is recommended only on the fascia purlin. For the rest of the purlins, screws should be fixed on the crests of the ribs.
Diagram showing the radius of curvature of the KAWA R760 crimped curved profile
