Technical Statement
Product Description
Scope of use
Spider P roofing and decking membrane is especially suited for high-risk applications - with zero risk of FIRE.
- Existing roofing & re roof applications
- Heritage Buildings
- Hospitals & Schools
- Public & Civil buildings
Plywood and concrete substrates - Low pitch roofing, decks and balcony's, parapets & gutters.
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B2 Durability: Performance B2.3.1(b)
- Clause E2 External moisture: Performance E2.3.1, E2.3.2
- Clause F2 Hazardous building materials: Performance F2.3.1
Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
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BRANZ Appraisal
1081 |
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Product Criteria
Design requirements
Spider P roof and deck membranes have been appraised as roof and deck membranes on buildings with
- Plywood & suspended concrete slab
- Minimum falls for a roof 1:30
- Minimum falls for decks 1:40
- Wind Zones including extra high NZS 3604
Spider P is a fully bonded , double layer system - self adhesive.
Spider P membrane system is UV stable , but requires protection if installed on a balcony with a timber raft or tile pedestal system.
Installation requirements
Installation must be completed by Mapei NZ ltd applicators only.
The installation of any substrate must be completed by a competent trades person. Mapei NZ Ltd technical literature must be followed at all times.
Maintenance requirements
The membrane system must be checked regularly (at least annually) checked for damage rubbish & debris.
Special care must be taken to ensure all inspections are recorded on the Care and Maintenance document, required by Mapei NZ ltd.
All remedial repairs must be completed by a Mapei NZ ltd registered applicator.
Warrantees
A Durability Warranty of 20 years will be given to all registered projects, completed by a Licensed LBP roofer, approved by Mapei NZ ltd.
- 20 Years Durability - provided they are designed, used and installed and maintained in accordance to Mapei NZ ltd technical literature.
Quality Assurance
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ISO 9001 (Quality Management) |
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Date last validated:
03 August 2023 |
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Date last updated:
03 August 2023 |