Modern
construction practices have created
thermally efficient buildings
which require the installation
of through wall ventilation products
to prevent problems caused by
condensation. Similarly, the increased
use of suspended floors replacing
the traditional concrete foundation
has meant that the requirement
to provide sufficient ventilation
to the voids below floor level
has also become paramount.
Building regulation and NHBC
guidelines state that a gap
between the ground and the underside
of the floor should be provided
to prevent the build up and
passage of condensation and
contamination air and that this
void should be adequately ventilated.
The
Combination Airbrick Boxed in 20’s
Product
Code G930/1/2/36600mm2
Single Airflow
The Manthorpe 9”
x 3” airbrick has been designed
to provide high levels of ventilation
into cavity walls and underfloor
voids. The brick features an insect grille at the front together
with a water deflector. A clip together facility provides
a choice of ventilation sizes.
The
Telescopic Underfloor Void Ventilator Boxed
in 20's
Product
Code G960
6600mm2 Airflow
This product has
been designed and manufactured
to provide underfloor ventilation
for suspended concrete and timber
floors. The telescopic capability
enables size adjustments of between
three and five brick courses.
The
Vertical Extension sleeve
Boxed in 20’s
Product
code G961
7000mm2 Airflow
The sleeve has
been designed and manufactured
for use with the Manthorpe telescopic
under-floor ventilator. It enables
adjustment of a further two brick
courses vertically. The G961 can
also be fitted to the base of
the G960 to provide horizontal
extension.
Remote
Void Ventilator Boxed
in 10’s
Product
code G962
8800mm2 Airflow
The remote void
adaptor ensures ventilation of
remote voids that are difficult
to access with the standard underfloor
void unit. The adaptor fits directly
onto the G930 airbrick or telescopic
underfloor ventilator G960 and
will accept a four inch round
pipe to direct the passage of
air.
Cavity
Sleeve Boxed
in 10’s
Product
Code G935
6600mm Airflow
The G935 is supplied
as a single unit to clip into
the back of the 9” x 3”
airbrick to ventilate through
a standard cavity or solid brick
wall. The unit can be stacked,
to create a 9”x 6”
and a 9” x 9” alternative.
Weep/Vent
– Sleeve Boxed
in 50’s
Product
Code G950
2200mm2 Airflow
Manthorpe’s
G950 weep vent is designed to
be used to meet NHBC guidance
notes which states ‘ Weep
holes are recommended to be
sited every 450mm maximum with
at least two per opening above
all windows and doors’.
The product can also be used
to ventilate cavities and drain
cavity tray systems.
Manthorpe’s
G950 weep vent is designed to
be used to meet NHBC guidance
notes which states ‘ Weep
holes are recommended to be sited
every 450mm maximum with at least
two per opening above all windows
and doors’ The G951 Peep
Weep provides an unobtrusive through
wall drainage system with just
a single point outlet in the brick
fascia.
Fitted in line
with NHBC and BS8215 recommendations,
Manthorpe lintel stop-ends along
with the G950 Weep Vent or G951
provide an economic solution to
damp prevention in the cavity
below lintels.
Insulation
Retaining Disc Boxed
in 2000’s
Product
Code GID760
Manthorpe’s
retaining discs have been designed
to prevent insulation materials
such as fibre slab and rigid board
sagging or falling across the
cavity.
Fits all standard wire ties from
2.5mm to 5mm diameter and flat
ties.
Colours:
blue.
Insulation
Retaining Disc Boxed
in 2000’s
Product
Code GID765
Fits all square
ties. Also suitable for wire ties
of 2.5mm to 2.8mm diameter.
