Masons R20 Intertenancy Wall System Instruction Manual
- June 14, 2024
- MASONS
Table of Contents
Masons R20 Intertenancy Wall System
GENERAL AND PRODUCT INFORMATION
PURPOSE
This guide relates to the design of the Masons Intertenancy Wall System.
IMPORTANT DOCUMENTS
This guide must be read in conjunction with:
- Masons Intertenancy Wall System pass™
- Masons Intertenancy Wall System Specification Guide
- the relevant Masons Intertenancy Wall System details
- Masons Intertenancy Wall System Installation Guide
- Masons Intertenancy Wall System Warranty
SKILLS REQUIRED
This guide is suitable for use by a designer who is a licensed building practitioner licensed to the relevant class or deemed LBP.
FOR MORE HELP
Technical assistance is available at www.mpb.co.nz.
While all reasonable efforts have been made to ensure the accuracy of
information provided, this guide is a guide only. It may be subject to change.
FOR OUR WARRANTY
Refer to www.mpb.co.nz.
PRODUCT DESCRIPTION
The Masons Intertenancy Wall System is an intertenancy acoustic and fire wall
system:
NOTE
-
90 mm timber framing or 92 mm steel framing
-
75 mm R2.0, noncombustible moisture resistant, non-corrosive, mildew proof insulation.
Where acoustic performance required a minimum density of 9kg/m3 applies. -
50 mm Masons Enviro™ AAC panel
The Masons Enviro™ AAC panel is a 50 mm thick AAC panel, manufactured from
cement, sand, lime and water and aerated by the addition of an expanding
agent. Soft blocks are moulded using the mixture and then sliced into the
required panel size and cured in a steam pressure autoclave for up to 12
hours.
The Masons Intertenancy Wall System has a fire rating of 90/90/90 and
estimated laboratory acoustic STC performance of 64 dB where timber framing
and lightweight steel framing is used.
SCOPE AND LIMITATIONS
For scope of use, limitations, conditions and statement of building code compliance, refer to the Masons Intertenancy Wall System pass™.
DESIGN
The steps required to design and specify the system are described in this
guide.
Links to Masons Intertenancy Wall System details that are to be included on
the relevant plan sheet are provided. It is intended that the details are
placed on the relevant plan sheet for easy reference on-site.
STEP 1:
CONFIRM SCOPE
Confirm the proposed use is within the scope and limitations of the pass™.
STEP 2:
CONFIRM RELATED BUILDING WORK
Confirm the primary structure (not including the Masons Intertenancy Wall
System):
- complies with the NZ Building Code and is designed in accordance with NZS 3604:2011; or NASH Standard Parts 1 and 2:2019; or is specifically designed in accordance with AS/NZS 1170:2002, NZS 3603:2003, or NZS 3404:1997; or
- is suitable for the intended building work, if the building is an existing building.
STEP 3:
SELECT FRAMING AND FIXINGS FOR THE MASONS INTERTENANCY WALL SYSTEM
The Masons Intertenancy Wall System can be designed with timber or
lightweight steel framing. Select the type of framing to be used.
Timber studs must be 90 mm deep. Use Table 8.2 of NZS 3604:2011 to determine
stud spacing. Specify fixings in accordance with NZS 3604:2011.
Steel framing must be 92 mm deep. Use NASH Standard Parts 1 and 2:2019 to
determine stud spacings and fixings for equivalent stiffness as specified in
NZS 3604:2011 for timber-framed buildings.
Alternatively, specifically design the stud spacings and fixings in accordance
with NZS 3603:2003, NZS 3404:1997 or AS/NZS 1170:2002. Ensure stud depth is 90
mm thick for timber and 92 mm thick for steel-framed walls.
STEP 4:
DETAIL THE MASONS INTERTENANCY WALL SYSTEM
Mark the location of the Masons Intertenancy Wall System on plans showing
framing, air gap and Masons Enviro™ AAC panel as a minimum.
Select insulation and plasterboard products to be used. Insulation for the
wall must be R2.0, non combustible, moisture-resistant, mineral wool, fibre
glass or polyester insulation. Plasterboard must be 10 mm thick. Insulation
for the top of the wall must be noncombustible, moisture-resistant, mineral
wool insulation.
Specify building services back-to-back of the Masons Enviro™
AAC panel. Identify on the plans where proprietary fire-stopping is required.
Include specific fire engineering where necessary.
Specify building services and detail any passive fire rating requirements.
Whilst services may be run in the air gap between the Enviro™ AAC panel and
the framing they must not touch the Enviro™ panel or framing as this will
reduce the STC rating.
Penetrations are only permitted where subject to specific fire engineering
design.
Ensure a minimum air gap of 20 mm is allowed for and clearly shown on the
applicable plan sheets.
Select the relevant Masons Intertenancy Wall System details and insert on the
relevant plan sheet. [link]
STEP 5:
QUALITY CHECK
Confirm all relevant design requirements are met.
Complete the Masons Intertenancy Wall System Specification. This forms part of
the construction contract as well as the building consent documentation;
accuracy and completeness are crucial.
Check that each plan sheet includes all relevant details.
Confirm the building consent plans and specifications clearly define and
include:
- all relevant installation details
- framing sizes and fixings
- panel numbers and accessories
- insulation and plasterboard products.
- Collate the following documents and include them in the building consent application:
- Masons Intertenancy Wall System pass™
- Masons Intertenancy Wall System Specification Guide
- the relevant Masons Intertenancy Wall System details
- Masons Intertenancy Wall System Installation Guide
- Masons Intertenancy Wall System Warranty.
CUSTOMER SUPPORT
This document is uncontrolled in printed form.
See www.mpb.co.nz for current version. Copyright ©
2021 Masons.
[email protected]
0800 522 533
www.mpb.co.nz
