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RMC Specialist Products Ltd
The Thermabate insulated cavity closer provides a simple and efficient method
of closing a cavity in masonry walling without creating a thermal bridge,
and also forms a positive damp proof barrier and plaster key. It effectively
prevents condensation, pattern staining and mould growth frequently associated
with traditional methods of closing cavities.
Thermabate obviates the need for cut bricks or block to close cavities and
avoids problems encountered when supporting traditional dpc’s and insulation
boards during construction. Thermabate is a PVC-U extrusion with a CFC/HCFC-free
insulating core, available in six sizes, colour coded for instant identification.
Joining clips extend the range further by allowing the Thermbate sections
to be joined. Thermabate ensures a more positive detail around openings and
offers a time saving profile when built in. It is suitable for use with timber,
metal or plastic window frames and can also be supplied to order in curved
sections.
Benefits
Continuous insulation.
Maintains a continuous insulated cavity closer around window and door openings.
Simplified construction
Avoids the need for cut bricks, blocks or special reveal blocks.
Reduced heat loss
Avoids thermal bridging.
Weather resistant
Forms an integral dpc.
Controlled hydrothermal behaviour
Prevents condensation, pattern staining and mould growth.
Flexible use
Can either be built in with frames or used to perform openings when frames
are fitted later.
Simplicity
One basic section satisfies all requirements.
Easy use
Easily cut to size and built in by bricklayers, saving time compared with
traditional methods.
Approved performance
Approved since 1984 (current Agrement Certificate No 91/2648) and is used
to comply with the thermal bridging requirement in the new (1995) Approved
Document L.
The One Piece Solution
Thermabate provides a clean, simple and efficient solution to thermal bridging
at wall openings. It insulates and closes the cavity, thus eliminating the
need for cut blocks, bricks or special reveal blocks. Thermabate also avoids
the need for separate strips of insulation or the need for internal insulated
linings that partially mask the frame.
With virtually no restriction in frame position, Thermabate allows the designer
much greater versatility in positioning window and door frames within the
depth of the reveal.
Regulations and Standards
Over recent years, the Building Regulations have gradually increased the
insulation requirements of all types of construction. The improved thermal
insulation in walls, coupled with the use of more thermally efficient windows,
now makes it even more important to overcome the potential problems of
condensation and mould growth which can arise from thermal bridging where
cavities are closed around openings in external walls.
British Board of Agrement Certificate
Thermabate insulated closers in all six section sizes and accessories have
been assessed as complying with the requirements of the Building Regulations.
The Building Regulations, Part L
The 2002 edition of Approved Document L1 & L2 includes stringent requirements
to limit thermal bridging around window and door openings. Emphasis is placed
on robust construction details as illustrated in the BRE support document.
BRE Document:
Thermal insulation; avoiding risks
This publication addresses the problems of thermal bridging and gives guidance
on practical solutions.
NHBC Good Practice guide:
Thermal Insulation and Ventilation
Prepared in collaboration with Industry and the Government, this guide is
an essential reference document for all housebuilders and designers. Based
on the long experience of the NHBC in defect prevention, emphasis is given
to safety improving insulations and controlling ventilation, in houses.
Accessories
Thermabate is complemented by a full range of accessories to maximise the
efficiency and scope for variable design options. Clip sections are supplied
in 1 metre lengths and are colour coded.
Versatility
Thermabate sections are available for all cavity widths. They can be used
with any combination of materials for the wall construction in conduction
with timber, PVC-U and metal window and door frames with virtually no restriction
in frame position.
During construction, Thermabate is built in either:
attached to the frames,
or
to form the opening where frames are fitted later.
An infinite variety of constructions can be formed with the use of the simple
Thermabate section.
Specifier Services
The Technical Department of RMC Panel Products Limited is readily available
for comprehensive technical and specification advice on Thermabate products
and applications.
Rmc Specialist Products Ltd Tel: 01924 362081
Waldorf Way Fax: 01924 290126
Denby Dale Road
Wakefield WF2 8DH
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