Hemsec External - Horizontally Installed


Micro rib external insulated wall panels designed to help create more usable space in a building, whilst providing insulation and fire resistance.

Features and benefits:

  • Designed with exceptional inherent strength which reduces the need for secondary supporting steelwork.
  • Lightweight, factory engineered and fire resistant.
  • Improves the appearance of a building.
  • Full thickness range from 50 mm (U-value of 0.39 W/m²K.) to 200 mm (U-value of 0.10 W/m²K.).
  • CE marked, Loss Prevention Certification Board (LPCB) and Factory Mutual (FM Approval).

25 year panel performance guarantee. This is subject to project specific information. Please contact the manufacturer for further details.

General information

Uniclass 2015

Pr_25_71_14_22 Carbon steel insulating sandwich panelsPrimary


H43/10 Metal insulating sandwich panel

H43/120 Metal insulating sandwich panel

Specification data - Carbon steel insulating sandwich panels

Product Reference

Hemsec External - Horizontally Installed



Panel length

2 m

2.4 m

50 mm thickness only.


50 mm

Panel weight: 9.60 kg/m².

80 mm

Panel weight: 11.0 kg/m².

100 mm

Panel weight: 11.6 kg/m².

125 mm

Panel weight: 12.5 kg/m².

150 mm

Panel weight: 13.4 kg/m².

175 mm

Panel weight: 14.4 kg/m².

200 mm

Panel weight: 15.7 kg/m².




100 Rib



Micro rib



On request only.

Profile finish

Colorcoat HPS200 Ultra®

0.5 mm Galvalloy. Plastisol thickness: 200 mm.

Colorcoat Prisma®

0.5mm Galvalloy. Paint thickness: 50 mm.

Colorcoat® LG

0.5mm Z275 HDG. Plastisol thickness: 200 mm.


0.5 mm Z225 HDG. Paint thickness: 25 mm.

Primer/ Liner

0.5 mm Z225 HDG. Paint thickness: 7 mm.


0.5 mm. Paint thickness: 27 mm.


Consult manufacturer and insert requirement.




Consult manufacturer for more details.

Standard product features

Thermal transmittance (U-value):

  • 50 mm thickness: 0.39 W/m²K.
  • 80 mm thickness: 0.25 W/m²K.
  • 100 mm thickness: 0.20 W/m²K.
  • 125 mm thickness: 0.16 W/m²K.
  • 150 mm thickness: 0.13 W/m²K.
  • 175 mm thickness: 0.11 W/m²K.
  • 200 mm thickness: 0.10 W/m²K.

Insulation core:

PIR Polyisocyanurate closed cell insulation, hydrochlorofluorocarbons (HCFC) free and zero ozone depletion potential (ODP) rated core.

Reaction to fire:

  • Polyester coated PIR sandwich panels have a performance in accordance with EN13501-1:2007 + A1:2009 of B s2 d0.
  • Plastisol coated PIR sandwich panels have a performance in accordance with EN13501-1:2007 + A1:2009 of C s3 d0.

For fire specification on other panel finishes please contact the manufacturer for details.

Fire resistance:

- LPCB LPS 1181 Part 1 Cert:558b:

100–175 mm external wall thicknesses achieve EXT-A30 with 60 minutes integrity and 30 minutes insulation. Maximum unsupported span 4 m (walls). For detailed information visit the Red Book Live website.

- BS EN 13501-2:

Please refer to the Hemsec Fire Rating Matrix document for further detail relating to direct field of application.

Panel joint:

Tongue and groove panel joint achieves good vapour resistance and thermal performance.

Air leakage:

All panels have a predicted figure weighted sound reduction Rw = 26 dB.

Load/ span tables:

Consult literature for details.

Product Options


The Hemsec panel cover width is 1155 mm.


- Flashing:

  • Manufactured to match all technical specifications.
  • The same steel coil is used to match flashings to the panels produced in-house.
  • Various designs, folded to a maximum length of 3000 mm.
  • Available with safety folds (excluding galvanised and five-bar aluminium).


Hemsec LPCB LPS 1181 Certificate 558b

Hemsec LPCB LPS 1181 Certificate 558b

Hemsec Manufacturing Insulated Panel Product Overview Brochure

Hemsec Manufacturing Insulated Panel Product Overview Brochure

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