Parapet Gutter Design

Parapet and valley gutters are treated differently because they have a higher risk of failure.

Parapet gutter design. 1 5 x building design life 4 5 x building design life. The design of the parapet must resist moisture penetration yet must also consider the various forms of moisture. Box gutter design and compliance is detailed in plumbing regulations sa hb 39 installation code for metal roof and wall cladding as well as saa snz hb 114 guidelines for the design of eaves and box gutters. Moisture migration via capillary action and excessive relative humidity in the parapet cavity ultimately resulting in condensation is often overlooked in the parapet design.

Our aluminium parapet and boundary wall gutters can also be manufactured as a parapet gutter liner. They are simply described on the vba s box gutter design fact sheet as a graded channel generally of a rectangular shape for the conveyance of rainwater within the building footprint including adjacent to a wall or parapet. Because parapet roofs are encircled by walls they are more prone to leaking than traditional pitched roofs. For a building of say a design life of 30 years this would give a return period of 45 years and 135 years respectively.

The cantilevered mini parapet notice that air control layer continuity is achieved by wrapping the membrane over the building corner and then constructing the. Valley and parapet and boundary wall gutters generally two categories of design rate should be considered depending on the return period required. Working with manufacturers will help develop your understanding but don t delegate your design responsibility to them. See more ideas about parapet architecture details construction drawings.

On larger and more complex schemes specialist consultants may be employed to design the rainwater drainage system. Aluminium parapet and boundary wall non branded gutters are manufactured to suit each build and designed specifically to meet your individual project requirements. Typically rain ice snow and vapor. Special profile parapet and boundary wall gutters can be fabricated or pressed.

A box gutter is defined as a graded channel generally of a rectangular shape for the conveyance of rainwater within the building footprint including adjacent to a wall or parapet. Making sure your parapet and boundary wall guttering design has the correct flow capacity is. This is a tricky thing to execute and as such we design into the upper parapet assembly a pathway for drying via diffusion to provide some performance redundancy. Metal parapet and boundary wall gutters will be manufactured to suit each project as we can produce an infinite amount of gutter sizes to suit your individual project requirements.