webertherm XM FM120 External Wall Insulation

webertherm XM FM120 External Wall Insulation

Saint-Gobain Weber

Render protected, mechanically fixed external wall insulation (EWI) system based on non-combustible mineral fibre (MF) insulant, a weberend PTC second coat and a weber mineral TF top coat.

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Application

Suitable for use in refurbishment and new build projects. Can be used above 18 m in England and Wales, and above 11 m for Scotland to comply with appropriate Building Regulations.

Description

Render protected, mechanically fixed external wall insulation (EWI) system based on non-combustible mineral fibre (MF) insulant with meshcloth reinforced basecoat, a top coat and a textured mineral finish.


Features and benefits:

  • Chlorofluorocarbon (CFC)/ hydrochlorofluorocarbon (HCFC) free.
  • Good impact resistance.
  • Provides weather protection.
  • Lightweight.
  • A wide range of finish coat colours are available.
  • Can be used for decorating and re-modelling existing facades.


System components:



  • Weber fixings as specified for the substrate.
  • webertherm MFD insulation (of specified thickness).
  • weberend LAC (first layer, 3 mm).
  • weber standard meshcloth.
  • weberend LAC (second layer, 3 mm).
  • weberend PTC (6 mm thick).
  • weber PR310 primer.
  • weber mineral TF.

The installation must be capable of resisting all dead loads and design live loads, including impact and wind loads, and accommodate all thermal movements without damage.

System installation is to be strictly in accordance with Saint-Gobain Weber specification. Please note that any other manufacturer's products used within the system will invalidate the guarantee, and the performance cannot be supported.

Remedial work must be completed prior to the installation of Weber EWI Systems.

Recommendations:



  • It is recommended for the contractors/ clients design team to ensure the system installed meets the building regulations requirements along with undertaking design liability for the building in its entirety including compliance with supplementary guidance such as BR 135. Weber external wall insulation systems incorporating mineral fibre insulation with a suitable fire tested finish (contact Weber for further details) achieve a reaction to fire classification of A2, s1, d0. Systems achieving this classification or better are considered suitable for use on, or at any distance from, a boundary without height restriction. In addition to the main wall fixings, appropriate fire fixings (stainless steel as per BRE 135) should also be installed at a rate of 1/m² minimum across the whole area receiving the system.
  • Fixings must penetrate the structure in accordance with the fixing design to provide the appropriate pull out resistance. A survey of the building must be completed by an engineer to ensure the additional load does not have a detrimental effect on the building and the fixings are able to sufficiently penetrate the structure, to adequately support the Weber system. Weber will undertake fixing pull out tests and verify the adequacy of the fixing design based on a wind loading assessment carried out in accordance with BS EN 1991-1-4: 2005.

General information

Finish

weberend mineral TF

Textured

Color

Yellow

White

Grey

Cream

Silver

Material

Mineral

Uniclass 2015

Ss_25_45_72_28 External wall insulation systemsPrimary

CAWS

M21/20 External wall insulation system . . . . . .

M21/210 External wall insulation system

Product range

External Wall Insulation Systems / XM

Specification data - External wall insulation systems Enhanced data

Preparation

Not required.

Weber CL150 Fungicidal Masonry Wash.

For existing substrates, or where required on new substrates, drench apply CL150 wash and leave for 48 hours, then brush down to remove all moss/ growth.

Insulation

-

Material

MFD.

Adhesive

weberend LAC.

Additional mechanical fixings

Fixings are dependent on wind load and pull out strength, please contact Weber for advice.

-

Fire barriers and stops

-

Material

MFD.

Fixings

Stainless steel (At 400 mm centres).

Movement joints

-

Form with

Please contact Weber for bespoke details

-

Render carrier or reinforcement

-

Material

Balanced, open weave, alkaline resistant glass fibre meshcloth.

Mesh size

3.5 x 3.5 mm.

Render

-

Application

Can be hand applied or sprayed.

Material

weberend LAC.

weberend PTC.

weberend mineral TF.

Decorative finish

weberend mineral TF.

Colour

Cream.

Ivory.

Stone Grey.

White.

Parchment.

weberend PTC.

Silver.

weberend PTC.

System accessories

  • Clip on nose beads.
  • Compressible sealing tape.
  • Fire barriers: Consult manufacturer for details.
  • Full system Weber base bead: Aluminium box profile with clip on nosing.
  • Overcills.
  • Render-only drip/ corner beads.
  • Undercills.
  • Verge flashing.
  • Weber frame seal – Can be used as an alternative at windows to provide a mastic free seal with improved aesthetics/ maintenance.
  • Weber pre-coated, pressed aluminium under cill trims: 1.2 mm thick (nominal), size to suit EWI System, if required.
  • Weber pre-coated, pressed aluminium verge trims: 1.2 mm thick (nominal), size to suit EWI System, if required.
  • Weber PVC corner, stop, drip and movement beads: As required.
  • Z flashing.


-

Fire performance

A2-s1,d0 when classified in accordance with BS EN 13501-1.

Density

First 15 mm: 160 kg/m³; balance: 100 kg/m³.

Thickness range

57.5–207.5 mm.

Environmental information

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Literature

External Wall Insulation for refurbishment

External Wall Insulation for refurbishment

Weber synthetic colour guide

Weber synthetic colour guide

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