Is the colour on both sides of the sheet.
Corrugated iron roofing overhang.
Sheets should be checked to ensure that the top side faces upwards.
Corrugate profile is cost effective and versatile able to handle a wide range of roofing and wall cladding applications.
These colorbond corrugated iron sheets have the colour on one side the underneath is similiar to shale grey with the bluescope colorbond stamp.
Drill a hole in the top corner on the valley of the corrugation not on the ridge.
If larger verge or fascia overlaps are used the wind will tend to catch this area and wind damage to the roof may result.
What is the actual sheet width.
The minimum recommended end distance of the cladding s fastener clip.
The minimum overhang must consider.
To prevent the ingress of water from driving rain the sheets should be arranged to overhang the verge the ends of the roof by approximately one corrugation.
Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.
Corrugate profile can also be bullnose curved.
Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.
The overhang is the projection of the sheet past a support.
New zealand metal roofing manufacturers inc.
April 2012 nz metal roof and wall cladding code of practice table of contents v 2 2 page 5 table of contents 1 3 3.
Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.
Fasten into place with a screw and a waterproof washer going through the closure strip and into the wood.
The industries requirement for projection of the cladding into a gutter box valley or eaves.
Do not overhang the fascia by more than 70mm.
To install corrugated roofing start by cutting your panels to length with an angle grinder.
Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.
Position your sheets on the ground before raising to the roof for laying.
4mm 4mm make allowance for thermal expansion or contraction for long length roofs at sheeting ends.
The maximum overhang is shown in table 2 12 1 and 2 13 1.
We recommend 50mm overhang into a standard gutter.
The actual sheet width of corrugated iron is 850mm.
The overlapping sheet edges should be raised facing the direction of installation i e positioned the same way as the other sheets.
Place it at one bottom corner allowing an overhang of two inches on each edge.