Both types have a 12mm extension on the bottom of the acroterion which serves as a means of attaching the ornament to the gutter.

On the top-attaching version this extension is bent at a 90° angle (i.e. parallel to the ground). This allows the acroterion to “sit” on the top edge of the gutter.

On the inside-attaching version this extension remains pointing straight down (i.e. perpendicular to the ground, and parallel to the side of the gutter). This allows the acroterion to be attached to the inside of the gutter.

The elevations of uninstalled straight-bottomed (inside-attaching) acroteria are in each case nominally 12mm higher than those of their bent-bottomed (top-attaching) counterparts to the intent that the visible part of each type above the gutter line should be the same once installed. This is true as long as the bottoms of inside-attaching acroteria are fixed no lower than 12mm below the gutter line and is subject to the effect of parallax when viewed from the ground.

Top-attaching centre acroteria have a decorative swirl or scroll below that part of the “prow” that projects horizontally across the front of the gutter line, but the smaller projection of the prow of inside-attaching acroteria precludes this decoration.

Top and inside forms of attachment are both historically and architecturally correct. The choice depends on the aesthetic preference of the customer.

Because gutters have a “fall” to assist water flow and depending on the accuracy to which their installers worked, it may be found that they deviate slightly from the horizontal where they meet at corners. This may mean that at certain parts of the day, depending on the position of the viewer and the angle of the sun, a slight gap may be noticeable between the tops of gutters and the bottoms of top-attaching acroteria. If this occurs, the gap may be filled with silicone and overpainted to match.

No such gap appears with inside-attaching acroteria.

Some gutter corners have an internal triangular re-inforcement and some have none. Where present, the re-inforcement can impede the fixing of inside-attaching acroteria unless their bottom corners are notched to accommodate or over-ride the re-inforcement. Because of the various sizes of such re-inforcements and their differing locations within gutter corners, it has not proven practicable to pre-cut our inside-attaching acroteria to a “one notch fits all” profile and accordingly the cutting of any notches – if required – is the responsibility of the customer.

If the customer prefers not to do this, selection of top-attaching acroteria is invited to obviate the contingency described.

Before ordering, it is the customer’s responsibility to ensure that there is nothing about the dimension, material, construction, configuration, profile or other attribute particular or peculiar to their building’s gutters that would preclude the safe and secure attachment of the acroteria offered.

The solder used to fuse together the sides of our acroteria is ordinary, not silver solder and could therefore melt at the temperatures required for powder coating, causing the acroteria to spring apart. Consequently painting (by spraying, and following priming or undercoating as may be directed by the paint manufacturer) is recommended and this is most conveniently done on the ground, before installation.

Manufacturing processes may leave new acroteria with slightly oily surfaces which should be de-greased before painting.

As well as a main roof, many buildings also have a lower veranda roof. Larger acroteria are designed for main roof gutters and smaller acroteria for veranda gutters so that where both are present, they appear in correct proportion to each other when viewed from the ground. Their respective sizes have been scaled by reference to the ground to main roof and ground to veranda gutter elevations on a typical Victorian villa.

Here are some examples (all showing top-of-gutter attachment – click on each one to view images):

Example 1
A main roof acroterion on an external corner.
Example 2
2. A main roof acroterion on an internal corner.
Example 3
3. Centres on a main roof (larger) and veranda gutter (smaller).
Example 4
4. A veranda gutter acroterion on an external corner.
Example 5
5. Veranda gutter acroteria on the external corners of a window awning with a centre in between.
Example 6
6. A main roof acroterion on a gable end (for which an external corner acroterion must be purchased and cut to match the gable pitch on site; in the photograph the acroterion is attached to the gutter by means of a quartered galvanised iron downpipe).
Example 6a
A more detailed view.
Example 6b
A more detailed view.


Example 7
7. A main roof acroterion on a gutter where the gutter pitch changes, where it is desirable to define or accentuate the pitch change (for which an external corner acroterion must be purchased and cut to match the roof pitch on site).
Example 8
8. A main roof acroterion on a gutter end terminating within the body of a roof, where it is desirable to define or accentuate the point of termination (for which an external corner acroterion must be purchased and cut to match the roof pitch on site).

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