Box gutter design - the joiner on display against a grey background.

Current treatment of Concealed Gutters (maintenance)

Existing concealed gutters (also known as boxed gutters or internal gutters) are bound with roofs above them and walls on their sides, and often require manual tampering in order to fit them in their location. During this process, the conventional 'C' shaped concealed guttering is likely to lose its original shape and not funnel stormwater effectively. Often roofs are required to be disassembled in order to allow the new box gutter to be placed in its final position, an operation that requires much time and cost. The scenario can get more complex when hazardous roofing materials such as asbestos are in place and special measures are required to be taken hence incurring greater costs. In industrial roofing applications 'C' shaped box gutters are often wide and long and would require several hands to convey thus increasing costs.

The Box Gutter Joiners advantages

  1. Since in this case there are two halves to be handled rather than one complete piece, it makes handling much easier and safer.
  2. The two 'L' shaped parts are to be positioned in their locations effortlessly and with no distortions.
  3. Fixing is simplified by the application of silicone seal and tightening nuts.
  4. Saves the need to tamper with existing roofs in order to get the job done.
  5. Cuts time of handling the job of replacing box gutters by days on industrial buildings and, the job is handled safer.
  6. The Box gutter joiner is manufactured in comfortable manageable lengths of 2.4 and 3m lengths.
  7. The Box gutter joiner can be provided in different materials and colours, per request.

Other Applications

Although the main advantage of the product is illustrated in box gutter replacement/maintenance, other applications can demonstrate cost cutting by using the product in the following:

  1. Capping.
  2. Closing roof openings (laserlights).
  3. Steel sheet walls (eliminating the intense need to use rivets).

The Box Gutter Joiner is especially useful when..

  1. There is no other possible way to replace the existing box gutters
  2. When long lengths of box gutter have to be replaced in a short time frame. (for example due to weather constraints).
  3. When hazardous roofing materials such as asbestos are in place and must not be disturbed.
  4. Infact, the Box gutter joiner simplifies most box gutter repair and replacement jobs.

Quality Assurance - Conforming to the Plumbing Code of Australia (PCA)

The Box Gutter Joiner conforms to the Plumbing Code of Australia (PCA) Part A.2. In particular A2.1 (e) and (h) of the PCA which deals with new or innovative products and material or products used in stormwater installations.

The Box Gutter Joiner has been assessed by the Plumbing Industry Commission (PIC) technical department. They found it to be of sound and excellent design.

The rolled form top and bottom sections are Zincalume coated and guaranteed against corrosion for 25 years. Materials are chemically compatible with the Zincalume sheets of the gutter.

Box Gutter Joiner Dimensions

  • 2.4 meter length: 2400mm x 80mm x 20mm
  • 3 meter length: 3000mm x 80mm x 20mm

Box Gutter Joiner Materials Available

  • Zincalume
  • Colourbond
  • Stainless steel
  • Galvanized iron
  • Copper

How to Replace Box Gutters using the Box Gutter Joiner

1. Take measurements of existing box gutter
a) Subtract 50mm from the width
b) Fabricate new box gutters in two 'L' shaped halves with 10mm break each side
2. Remove old box gutter
a) Cut old box gutter in the centre and remove
3. Install new box gutter using the Joiner
a) Place one 'L' shaped half of the box gutter
b) Place joiner bottom plate and secure to the box gutter half with rivets
c) Place second 'L' shaped half of the box gutter and again join with rivets
d) Place next joiner bottom plate with 20mm overlap on the first, secure with rivet
e) Place next ā€˜Lā€™ shaped box gutter halves, silicone and rivet laps
f) Place joiner top plate on first section, make sure rubber seals are seated correctly
g) Cut joiner top plate wings 20mm at end for neat overlap with the next
h) Secure with fasteners and rivets, seal with silicone along joiner edge
i) Place next bottom plate and continue procedure..
j) Box Gutter Sump Installation: Same as with conventional box gutters
k) Box Gutter Ends: Cut and fold sides in, silicone and join with rivets

View Illustrated Box Gutter Replacement Instructions (146 KB)