How to Meet Strict Council Demands on Raked Roof Cavities

Time and time again the team at DynexBuild has seen raked roof line applications where cavities under angle cut weatherboard remain open to vermin.

These are tricky areas as builders have not had a good solution to close gaps. Using a standard cavity closer will close a majority of the cavity, but still leave elongated triangles greater than 4mm. It doesn't help that these applications can remain unseen and not obvious, hidden by the roof that sits below them.

The raked roof closer by DynexBuild is a new cavity closer that fills these gaps easily with little additional effort. The 20mm cavity closer has a unique soft flexible bulb that fills the variable voids created by the angle cut weatherboard, closing all gaps for vermin proofing while still allowing the cavity to vent. Just install the raked roof closer instead of a standard closer in these areas.

The raked roof closer is available through building merchants, is BRANZ appraised to ensure it meets the strict NZ building code, and gives builders and council inspectors confidence in a job well done.

Dynex Cavity Closers — Standard Range

Dynex

View Product

A new range of uPVC cavity closers designed for use on drained cavities behind the exterior cladding and meet the requirements of NZBC Acceptable Solution E2/AS1 paragraph 9.1.8.3.

NZ Made

Dynex cavity closers can be used in conjunction with wall cladding systems on timber and steel framed buildings within the following scope:

The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and floor plan area; and,
With cavity-based weatherboard, fibre cement sheet, External Insulation and Finishing Systems [EIFS], stucco and plywood wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or with any proprietary cavity-based cladding system covered by a current BRANZ Appraisal or CodeMark Certification; and,
Situated in NZS 3604 Wind Zones up to, and including Extra High and specific design wind pressures up to and including design differential ultimate limit state (ULS) 2.5 kPa.

Dynex Cavity closers meet the durability requirements of NZBC Clause B2, Performance B2.3.1 (b) 15 years and B2.3.2.
Dynex Cavity Closers are a range of extruded uPVC and polymer based flashings designed to meet the requirements of E2/AS1 and are made in New Zealand.
Dynex Cavity Closers are covered by BRANZ Appraisal No. 911 (2016).

BRANZ Appraised

Categories

Popular Products

Popular Brands

Features

Sections

This Month

Murihiku Marae’s Tohorā-Inspired Design Showcases Techlam's Curved Glulam Beams

Achieve Complex Decking Designs without Budget Blowouts

Electric, Like You've Never Seen Before: Introducing Escea LE Series

SECTIONS

What Shading is Needed for Summer Cooling?

The Relationship Between E1 and E2

What Happens When a Warm Roof System with PIR Insulation Catches Fire?