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Knauf Drywall - Knauf Gypsum Parge Coat set for more Part E solutions
Knauf Drywall’s Gypsum Parge Coat – a key
solution for Part E compliance in residential masonry separating
walls – has gained further approvals that allow its use in a
wider range of applications. After extensive on-site acoustic
testing, Knauf Gypsum Parge Coat has achieved Robust Detail
status for use on cavity separating walls of dense aggregate
blocks (1,850-2,300kg/m3) and Besblock Star Performer general
purpose cellular blocks. This follows earlier RD approval for
its use with medium density aggregate blocks (1,350-1,600kg/m3).
The latest approvals mean that housebuilders and drylining
contractors can ensure Part E compliance without pre-completion
testing by using Knauf Gypsum Parge Coat on separating walls of
types E-WM-3 and E-WM-5 – in addition to the common E-WM-4 type
approved previously. This makes Knauf Gypsum Parge Coat suitable
for use in houses, flats and all other residential buildings
where masonry separating walls of these types are specified.
Knauf Gypsum Parge Coat is used in place of traditional
sand-cement renders to seal masonry prior to finishing with
Knauf plasterboards. As a gypsum product it is easy to mix and
to apply – by hand or machine – and its fast two-hour drying
time is a boost for site productivity as Knauf Wallboards can be
direct bonded on the same day.
Part E of the Building Regulations requires that in new-build
houses, separating walls must provide at least 45dB reduction of
airborne sound on site. Robust Details provide conditions for
constructions to comply with Part E, without pre-completion
testing. With the new approvals, builders have three options for
compliance using 100mm blocks with a 75mm cavity; each outer
face is parge-coated and finished with 12.5mm Knauf Wallboard on
dabs of Knauf Bonding Compound.
Gypsum Parge Coat from Knauf Drywall is available from builders
merchants in 25kg bags – each covering 4.25m2 at a minimum
thickness of 6mm. Further details on Gypsum Parge Coat and other
Knauf Drywall solutions for Part E compliance in residential
applications can be found in the Design Partner series Housing
brochure, available free from 08700 613700 or
www.knaufdrywall.co.uk/literature
Knauf Drywall manufactures a full range of plasters,
plasterboards, insulating laminates, drywall accessories, metal
sections and steel building systems, for domestic and commercial
applications, from factories at Sittingbourne in Kent and
Immingham on Humberside.
Email:
Janice@trilobyte.co.uk