LPS 1181-1 cladding products used for the external envelope of buildings

Hemsec Manufacturing Limited

Stoney Lane
Rainhill
Prescot
Merseyside
L35 9LL
United Kingdom

Tel: +44 (0)151 426 7171 • Fax: +44 (0)151 493 1331
Email: sales@hemsec.com • Web: www.hemsec.com


Certificate No 558b to LPS 1181: Part 1: Issue 1




Product

Specification

(mm)

Fire Resistance

(min)

Integrity

Fire Resistance

(min)

Insulation

Grade

Core

Material

Cert. No.
HPT External/Carrier (wall panels)

50mm to 175mm

-

-

EXT-B

PIR

558b/01
HPT External/Carrier (roof panels)

50mm to 175mm

-

-

EXT-B

PIR

558b/02
HPT External/Carrier 30 (wall panels)

100mm to 175mm

60

30

EXT-A30

PIR

558b/03
HPT External/Carrier 30 (roof panels)

125mm to 175mm

52

40

EXT-A30

PIR

558b/04
SIP Firecheck wall system

160 to 287

75

75

EXT- A60

PUR

558b/05
SIP Firecheck wall system

257.5 to 329.5

101

101

EXT-A90

PUR

558b/06

 

Notes:
1.    LPCB Ref No. 558b/01 & 558b/03 - HTP External/Carrier and HPT External/Carrier 30 wall panels can be installed with the long joints in the vertical or horizontal orientation.
2.    LPBC Ref No. 558b/01 - The joints of the HPT External/Carrier wall panels should be stitched at 150 mm centres on the internal face.
3.    LPCB Ref No. 558b/02 - The joints of the HPT External/Carrier roof panels should be stitched at 1500mm centres on the internal face.
4.    LPCB Ref No. 558b/03 - The joints of the HPT External Carrier 30 wall panels should be stitched at 150mm centres on the internal and external face.  When installed the supporting framework shall provide support at a maximum of 4m centres both horizontally & vertically.
5.    LPCB Ref No. 558b/04 - The joints of the HPT External/Carrier 30 roof panels should be stitched at 150mm centres on the internal and external face.
6.    LPCB Ref No. 558b/05 - Hemsec SIP Firecheck wall system was tested and is approved to LPS 1181-1 as a non loadbearing, non structural built-up wall system of the following configuration; Rigid polyurethane foam core (95mm to 222mm thick) sandwiched between 15mm orientated strand boards (Krono OSB-3), the panel size was 1.2mm x 3.0m and installed with 3 metre joints vertical. The system was clad on the fire exposed face with two layers of British Gypsum wall boards; A single layer of 'Gyproc' 12.5mm wall board (outer layer) and a single layer of 'Gyproc Fireline' 12.5mm board (inner layer), wall board layer joints were staggered by 600mm and fixed to softwood timber battens positioned at 600mm centres with 3.5mm x 50mm dry wall screws at 300mm centres.  The system was tested with Hemsec 175mm thick HPT External/Carrier PIR core roof panels.
7.    LPCB Ref No. 558b/06 - Hemsec SIP Firecheck wall system is approved to LPS 1181-1 as a non load bearing, non structural built up wall system of the following configuration; rigid polyurethane foam core (150mm to 222mm thick) sandwiched between 15mm orientated strand boards (Krono OSB-3), the panel size is 1.2m x 3.0m and installed with 3 metre joints vertical and consisting of 148mm deep x 70mm thick x 3000mm long timber spline joints inserted into 35mm pre-formed rebates in the core insulation, the joints are fixed with adhesive and nail fixings at 100mm centres.  The system is clad on the fire exposed face with two layers of British Gypsum wall boards; A single layer of 'Gyproc' 12.5mm wall board (outer layer) and a single layer of 'Gyproc Fireline' 15mm board (inner layer), with the wall board joints between layers staggered by 600mm and fixed to softwood timber battens 50mm x 50mm apace at 600mm centres with .3.5 x 50mm dry wall screws at 300mm centres, the stud cavity is filled with Knauf Rocksilk Universal slab RW33 insulation.

 


 

To read the Red Book section introduction click here.

 

< back to results page