Standing Seam Roof System - PREFALZ® - Coil coated aluminum standing seam
Verified by manufacturer 2 months ago
Non-vented roof
Non-vented roof
EPD
Certificate type
BBA Agrément Certificate
Certificate type
QA Certificate
Certificate type
ISO 9001 Quality Management
Certificate type
Fire Safety Certification
Certificate type
PREFALZ aluminium standing seam is available in 20 different colours, including a range of P.10 finishes. It is lightweight, malleable, corrosion resistant, rust proof and A1 non combustible.
Application
500 and 650 mm width coils are applicable for use in standing seam roofing.
1000 mm coil widths are suitable for use as flashing strips.
Description
Aluminium standing seam roof system.
Prefalz® is highly malleable and therefore easy to shape. This results in countless individual design possibilities.
Using Prefalz® includes all the advantages of aluminium, combined with a material guarantee of 40-years.
Features and benefits:
- Available in a range of 19 standard colours.
- P.10 finishes with up-to 40 year colour guarantee.
- Available with smooth or stucco surface.
- Comprehensive PREFA system accessories available.
- Versatile use – from arched roofs to complex roof extensions, domes or large-scale roofs.
- Long service life – non-corrosive.
- Does not rust.
- Low weight sheet strip: 1.89 kg/m². Approximately 2.3 kg/m² roof surface with Prefalz® 500, and 2.2 kg/m² roof surface with Prefalz® 650.
- Fully recyclable.
- Non-combustible (A1).
- Highly malleable, even in sub-zero temperatures (allows for expansion).
- Aluminium alloy mechanical properties and coating are coordinated with the folding technology.
- No heavy metal erosion.
- Visible side: coil-coated aluminium (two layers including a primer and colour finish).
- Underside : protective paint on reverse.
- Suitable for coastal environment.
PREFA PREFALZ® – COLOUR RANGE & NEAREST RAL
01. P.10 BROWN
Nearest RAL 7013
02. P.10 ANTHRACITE
Nearest RAL 7016
03. P.10 BLACK
Nearest RAL 9005
04. P.10 BRICK RED
Nearest RAL 8004
05. P.10 OXIDE RED
Nearest RAL 3009
06.P.10 MOSS GREEN
Nearest RAL 6005
07.P.10 LIGHT GREY
Nearest RAL 7005
08. P.10 ZINC GREY
Nearest RAL 7030
10. P.10 PREFA WHITE
Nearest RAL 9002
11. P.10 NUT BROWN
Nearest RAL 8019
12. METALLIC SILVER
Nearest RAL 9006
13.PLAIN ALUMINIUM
-
17. P.10 PURE WHITE
Nearest RAL 9010
19.P.10 DARK GREY
Nearest RAL 7043
23. BLACK GREY
Nearest RAL 7022
43. P.10 STONE GREY
Nearest RAL 7031
45. BRONZE
Nearest RAL 7048
46.P.10 PATINA GREEN
Nearest RAL 6027
47. PATINA GREY
Nearest RAL 7042
General information
Color | Black Brown Bronze Green Grey |
Finish | Coated |
Material | Aluminium |
Shape | Other |
Length | Bespoke |
Width | 0.7 mm |
Height | 500 mm 650 mm |
Warranty description | 40 year Guidance for specification option: 40 year for material, up to 40 year for colour. |
Uniclass | |
CAWS | H72/110 Aluminium sheet fully supported roof covering |
Specification data - Aluminium sheet fully supported roof covering systems
Membrane | Vapour permeable sheets in accordance with BS EN 13859-1. |
Insulation | Guidance for specification option: Please insert requirement. NOTE: An aluminium standing seam roof does not have any specific requirement with regard to the insulation, unless it is used as the substrate for the standing seam in a warm roof build-up. In this instance, the insulation must be dense in quality and supportive of foot traffic without denting, with a minimum compression strength of 50 kpa (0.5 kg/cm²) at a maximum of 10% deformation and remain dimensionally stable at 100°C. |
Substrate | 18 mm WBP exterior grade plywood bonded to phenolic foam.Guidance for specification option: This system can be used for roofs with a pitch from 3 to 70º. The continuous support substrate above the rafters, must be covered with a continuous aluminium foil-backed, bituminous self-sealing vapour barrier, with a minimum SD Value of 1500 M. The vapour barrier must be sealed at the laps and to perimeter abutments and penetrations. The vapour barrier must have the ability to self-seal when penetrated by fixings. A condensation risk must be assessed for each individual project or individual project component in accordance with BS 5250: 2002. The specification may need to be adapted to the internal humidity load of the building. A breather membrane should be installed between the PREFALZ and the Metdeck/Warmdex composite panels. All joints must be sealed. Metdeck/Warmdex FR panels are mechanically fixed to the substrate (vapour barrier on metal or timber deck). The number of fixings required to secure the Metdeck/Warmdex FR, will vary with specific building details, and geographical location, and must be assessed on an individual basis. Standing seam fixings, and positioning, as per PREFA installation instructions and FTMRC Guidelines.
System Build-Up:
Cellular glass, standing seam compact construction.Guidance for specification option: Non-vented warm roof system for buildings with high humidity levels (including class 5, swimming pools), using Prefa Prefalz, and Cellular Glass as a continuous support. Cellular Glass, to be installed according to manufacturer's instructions. The system can be used for roofs with a pitch from 3 to 60º.
System Build-Up:
Manufacturer guidancePlease note, other 'warm' non - vented roof build-ups may be viable. Please refer to the latest FTMRC ‘UK Guide to Good Practice in Fully Supported Metal Roofing and Cladding’, and contact your local PREFA Technical Sales Manager, to discuss. |
Cavity barriers | Guidance for specification option: To architects specification. Insert accordingly. |
Sheet underlay | |
Material | Aluminium alloy. |
Eave details | |
Form | Guidance for specification option: To PREFA installation guidelines and detailing. |
Verge details | |
Form | Guidance for specification option: To PREFA installation guidelines and detailing. |
Material | Aluminium alloy. |
Fixings | |
Joints | PREFA preformed fixed and sliding clips.Guidance for specification option: According to project requirements. |
Ridge and hip details | |
Form | Guidance for specification option: To PREFA installation guidelines and detailing. |
Abutments | |
Form | Guidance for specification option: To PREFA installation guidelines and detailing. |
System accessories | Guidance for specification option: An extensive range of accessories is available; consult literature for details and insert requirements. |
Colour/ Finish | 01 Brown P.10. Guidance for specification option: Similar to RAL 7013. 02 Anthracite P.10. Guidance for specification option: Similar to RAL 7016. 03 Black P.10. Guidance for specification option: Similar to RAL 9005. 04 Brick Red P.10. Guidance for specification option: Similar to RAL 8004 05 Oxide Red P.10. Guidance for specification option: Similar to RAL 3009. |
Width | 500 mm. 650 mm. |
Thickness | 0.7 mm. |
Roof pitch | Guidance for specification option: The manufacturer recommends a minimum substructure roof pitch of >7° (13%). Roof pitch from 3° is possible. From 3–7° it is required to seal the seams (using PREFA Sealing Gel). The position of clips will be according to roof pitch – consult PREFA planning guide. |
Weight | 1.89 kg/m². Guidance for specification option: Average consumption of approximately 2.3 kg/m² (500 mm-wide coils) or 2.2 kg/m² (650 mm-wide coils). |
Installation | Guidance for specification option: On fully boarded substrate (thickness in accordance with national guidelines or regulations; PREFA recommends 24 mm). A suitable separation layer is required. Observe national standards and specialist guidelines (such as the FTMRC Guide to Good Practice in Metal Roofing). |
FireRating | A1. Guidance for specification option: Non-combustible. |
Surface finish | Stucco. Guidance for specification option: As standard. Smooth. Guidance for specification option: Available on request. |
Rear panel | Protective paint. |
Third-party certification | QA Certificate. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Austria |
Country of product manufacture | Austria |
Material | Aluminium |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 6.39 kg CO₂ eq/kg Manufacturer guidanceEPD available upon request |
Recyclability | 100 Manufacturer guidanceFully Recycable |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 87 % Manufacturer guidanceInformation available upon request |
Third party certifications
Third party certifications
EPD
Environmental Performance Declaration
BBA Agrément Certificate
BBA Cert for Non-P.10 Coated PREFALZ
BBA Agrément Certificate
BBA Certificate for P.10 Coated PREFALZ
QA Certificate
IQNet-certification-ISO-9001-2015
ISO 9001 Quality Management
ISO -9001:2015
Fire Safety Certification
PREFA Fire Classification Report
Literature
PREFA PREFALZ Standing Seam Roof
PREFALZ. Declaration of Performance.
PREFALZ. Standard Roof Details
PREFA Colour Chart 2024
IQNet ISO 9001 Certificate
PREFA ISO 9001 Certificate
Case studies
Derbyshire Longhouse
Residential House. Lower Stanhope, Isle of Wight
JFK Arboretum, Co Wexford, Ireland. RE-ROOF of visitor centre
Lawlors Hotel, Naas, Ireland