Timber party wall construction

PARTY WALL SOLUTIONS

We offer a zero U-value party wall solution, fully filled cavity with insulation and effective edge sealing.

This timber frame wall system utilises RD Ltd. E-WT-1 and E-WT-2 solutions with fibre insulation between the party wall frames and floor zones in accordance with MIMA Design Guidance. The insulation between the frames can be fitted as part of the system erection. The sequence of erection allows for one leaf to be installed, with or without sheathing, insulation fitted and then the second leaf erected, to complete the process. The use of insulated flexy fire barriers to both sides and between the timber frame party wall ends, is sufficient to achieve effective edge sealing. Where required the system provides sheathing for racking strength and secure by design compliance, ideally to one leaf only of the party wall.

Where air tightness less than 3 is specified, we recommend the fitting of an air tightness membrane to the face of the studwork, after acoustic insulation is fitted and before plaster boarding is installed. The membrane should be taped to the perimeter wall heads and sealed at laps, ends and junctions, penetrations should be limited, but where required, taped and sealed accordingly. It is recommended where heavily serviced walls occur i.e. kitchens, that an additional service batten and plasterboard layer is fitted to provide a service zone with the party wall intact behind. The fitting of the membrane should be sequenced after the building is weather tight and before first fix, to allow an interim air tightness test to be completed, before services installation. Air tightness membranes are normally supplied and fitted by the contractor.

Where air tightness is greater than 3, the plasterboard can act as the air barrier, with appropriate sealing at edges and joints. Fitting of plasterboard should be similar to the sequence required for the air membrane solution, to allow an interim test to be completed, if desired.

PARTY WALL SOLUTIONS PARTY WALL TO EXTERNAL WALL DETAIL

Click to enlarge or print

Download our Timber Systems main brochure

Download our Timber Systems product brochure

News and Media

Sep 05, 2019

News archiveHow MMC can help meet demand for Purpose Build Student Accommodation

While students are starting to pack their laptops … find out more

Sep 04, 2019

News archiveBrownfield land offers a sustainable solution to the housing crisis

In an article written for August’s edition of Show… find out more

Jun 19, 2019

News archiveHow offsite construction can help solve the housing crisis

Alex Goodfellow, Group Managing Director of Stewar… find out more

Jun 17, 2019

News archiveLarkhill Housing Scheme: Radical Collaboration

As part of Lovell’s regeneration development, they… find out more

May 28, 2019

News archiveStakeholders hear how AIMCH project will revolutionise how homes are built

Industry leaders and stakeholders joined together … find out more


Back Next
Homes For Scotland Home Builders Federation National House-Building Council Royal Institute of British Architects Structural Timber Association Constructionline British Board of Agrement Wood Campus Build Off Site Building Research Establishment WOOD FOR GOOD

Keep up to date

Stay in touch with our latest products and project, simply sign up to our newsletter