Search by Certificate Number

Rockwool Limited

Wern Tarw
Pencoed
Bridgend
Mid Glamorgan
CF35 6NY
United Kingdom

Tel: +44 (0)1656 862621 • Fax: +44 (0)1656 862302
Email: info@rockwool.co.uk • Web: www.rockwool.co.uk


Certificate No 022g to LPS1181: Part 1: Issue 1.1




Product

Specification

System Thickness

(mm) (1)

Fire Resistance

(min)

Integrity

Fire Resistance

(min)

Insulation

Grade (2)

Core Material

LPCB
Ref. No.
Hardrock Dual Density Roof Board System

100 - 135

60

60

EXT-A60

Stone wool

022g/01
Hardrock Dual Density Roofing Board System

140 - 205

90

90

EXT-A90

Stone wool

022g/01
Hardrock Dual Density Roofing Board System

210

120

120

EXT-A120

Stone wool

022g/01
Hardrock Dual Density Roofing Board System

100 - 210

-

-

EXT-B

Stone wool

022g/01
Hardrock Dual Density SPA Roofing Board System

100 - 135

60

60

EXT-A60

Stone wool

022g/02
Hardrock Dual Density SPA Roofing Board System

140 - 205

90

90

EXT-A90

Stone wool

022g/02
Hardrock Dual Density SPA Roofing Board System

210

120

120

EXT-A120

Stone wool

022g/02
Hardrock Dual Density SPA Roofing Board System

100 - 210

-

-

EXT-B

Stone wool

022g/02
DuoRock Roofing Board System

100 - 210

60

60

EXT-A60

Stone wool

022g/03
DuoRock Roofing Board System

100 - 210

-

-

EXT-B

Stone wool

022g/03
Hardrock Multi-fix Dual Density Roofing Board System

100 - 135

60

60

EXT-A60

Stone Wool

022g/04
Hardrock Multi-fix Dual Density Roofing Board System

140 - 205

90

90

EXT-A90

Stone Wool

022g/04
Hardrock Multi-fix Dual Density Roofing Board System

210

120

120

EXT-A120

Stone Wool

022g/04
Hardrock Multi-fix Dual Density Roofing Board System

100 - 210

-

-

EXT-B

Stone Wool

022g/04
Hardrock Multi-fix Dual Density Roofing Board System

150

90

90

EXT-A90

Stone Wool

022g/04

 

     Notes:
1.    Roof board system LPCB Ref No. 022g/01, 022g/03 & 022g/04 Mechanically fastened Samafil single ply type S327 (1.2mm thickness) external weather proof membrane (or altenative membrane less than 3.5 kg/m2  e.g. PVC, Chlorinated PE, Butyl Rubber with wedded seams).
    Comprising of two layers of Rockwool roofing board with staggered joints (100mm minimum stagger for fire resistance up to 90 minutes and 300mm stagger for 2 hours fire resistance), vapour control layer and 0.7mm thickness 35mm deep profile steel metal deck.
2.    Roof board system LPCB Ref No. 022g02; Sarnafil single ply external weather proof membrane type G410 (1.2mm thickness), fully adhered to Hardrock Dual Density SPA Roofing Board System with Sarnafil Adhesive (or Rockwool approved alternative, adhesive/membrane combination, with a membrane material less than 3.5 kg/m2 e.g. PVC,  Chlorinated PE, Butyl Rubber with welded seams); comprising of two layers of Rockwool roofing board with staggered joints (100mm minimum stagger for fire resistance up to 90 minutes and 300mm stagger for 2 hours fire resistance), vapour control layer and 0.7mm thickness 35mm deep profile steel metal deck.
3.    Roof Board System LPCB Ref No. 022g/01, 022g/02, 022g/03 & 022g/04 Hardrock Dual Density , Hardrock Dual Density SPA, DuoRock  and Hardrock Multi-fix Dual Density roofing boards are also available and approved in cut-to-fall tapered options the relevant minimum & maximum system thickness and staggered joints shall apply as detailed above.
4.    For EXT-A fire resistance grading, the test construction was tested unloaded.  However, deflection of the roof did not exceed the allowable limits set out in BS 476: Part 20:1987 for loadbearing horizontal elements.
5.    Decking side laps were stitched at 450mm centres.  The built up roofing system was tested with Eurobond Stone wool core sandwich wall panels.
6.    Hardrock Multi-fix Dual Density roof board system 022g/04 at a thickness of 150mm is unfaced and for the purpose of extending the thickness within the Multi-Fix system.
  

 


 

To read the Red Book section introduction click here.

 

< back to results page

< back to search page