Two Viking Systems Showcased on One Home

Challenge

The family was building an English-style country estate and required a roof that kept with the architectural style of the house, and its picturesque life-style environment (featuring horses, etc). But most importantly, it would need to stand the test of time.

To add to their challenge — while the majority of the roof area was pitched, this met a significant low-slope section, so some serious research was required before any decisions on materials were made.

Solution

With the need for an overall roof specification that was sympathetic with the design, as well as one that could last the distance and accommodate both pitched and low-slope sections, two different roofing systems would be required.

For the pitched sections, the family went with 'Hatteras' from the Viking CertainTeed Asphalt Shingles range. This was chosen because the family liked the slate-type flavour — with its deep shadow-lines and rich colour palette — and also liked the fact that it had a 40-year product warranty.

For the significant low-slope section of the roof, a robust waterproofing membrane was required. The family decided on Viking Enviroclad in light grey, as the wide-sheets and heat-weldable technology meant fewer seams (and in-turn are vulcanised together at 380° celsius). This promised a watertight solution and as the product is warranted for a 20-year period, delivered the assurance the family was looking for.

The family wanted one of the best applicators in the business on the job, which is what they received with one of Viking's Approved Applicators. The Enviroclad Membrane was installed first on the low-slope section of the roof, rising part-way up the pitched sections. Once completed, the CertainTeed Shingles were installed on the pitched sections, which overlapped the Enviroclad Membrane sufficiently to negate the chance of any water finding its way into the building.

This allowed the family to achieve the look they desired without making any design concessions.

Result

The family had the perfect roof to complement the perfect house. The 'Hatteras' roof suited the architecture and the low-slope section was fully-watertight. The quality of the materials and the proven, systematic method of installation, meant that they also received a roof that they could trust, with further assurance supplied by the robust warranties backing it.

CertainTeed Asphalt Shingles

Viking Roofspec

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Asphalt shingles are individual bituminous sheets (usually 915mm long), nailed on top of a timber-sarked roof substrate with either a layer of bitumen felt or self-adhering membrane in-between.

NZ-Owned Business

Suitable for residential and commercial pitched roofs and can be used as a re-roofing solution.

Viking CertainTeed Asphalt Roofing Shingles have been appraised as a roof cladding for buildings within the following scope:

The scope limitations of NZBC Acceptable Solution E2/AS1, paragraph 1.1, with regard to floor plan area and building height; and,
Constructed with timber roof framing and sheathing complying with the NZBC; and,
Where the roof slope is 9 degrees or greater for plywood and 10 degrees or greater for Strandsarking; and,
Situated in NZS 3604 Wind Zones up to and including High, or Extra High for the Landmark Series, Hatteras and Independence shingles only.

Clause B1 STRUCTURE: Performance B1.3.1, B1.3.2, B1.3.3 and B1.3.4. Viking CertainTeed Asphalt Roofing Shingles meet the requirements for loads arising from self-weight, gravity loads, temperature, snow, wind, impact and creep [i.e. B1.3.3 (a), (b), (c), (g), (h), (j) and (q)]. See paragraphs 8.1 - 8.9 of the Viking CertainTeed BRANZ Appraisal.
Clause B2 DURABILITY: Performance B2.3.1 (b), 15 years. Viking CertainTeed Asphalt Roofing Shingles meet this requirement. See paragraphs 9.1 and 9.2 of the Viking CertainTeed BRANZ Appraisal.
Clause E2 EXTERNAL MOISTURE: Performance E2.3.1, E2.3.2 and E2.3.6. Viking CertainTeed Asphalt Roofing Shingles meet these requirements. See paragraphs 13.1 and 13.2 of the Viking CertainTeed BRANZ Appraisal.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Viking CertainTeed Asphalt Roofing Shingles meet this requirement and will not present a health hazard to people.

BRANZ Appraised

Enviroclad (TPO) Waterproofing Membrane

Viking Roofspec

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Viking Enviroclad offers absolute watertight integrity for low-slope roofs.

NZ-Owned Business

Viking Enviroclad Roofing and Deck Membrane System has been assessed as a roof and deck waterproofing membrane on buildings within the following scope:

the scope limitations of NZS 3604:2011 and NZBC Acceptable Solution E2/AS1, paragraph 1.1; or,
the scope limitations of NZBC Acceptable Solution E2/AS1, paragraph 1.1 with regards to building height and floor plan area when subject to specific structural design; and,
situated in NZS 3604:2011 Wind Zones, up to, and including Extra High; and,
with substrates of plywood or suspended concrete slab

Viking Enviroclad Roofing and Deck Membrane System has also been assessed for use as a roof and deck waterproofing membrane on specifically designed or existing buildings within the following scope:

subject to specific structural and weathertightness design situated in wind pressures up to a maximum design differential ultimate limit state (ULS) of 2.7 kPa; and,
with substrates of plywood or suspended concrete slab
with the weathertightness design of junctions for each specific structure being the responsibility of the building designer

Clause B1 STRUCTURE: Performance B1.3.1, B1.3.2 and B1.3.4 (b) (c) (d) (e) for the relevant physical conditions of B1.3.3 (a), (c), (e), (h), (m) and (p) Viking Enviroclad Roofing and Deck Membrane System meets this requirement.
Clause B2 DURABILITY: Performance B2.3.1 (b) and B2.3.2 (a), 15 years. Viking Enviroclad Roofing and Deck Membrane System meets this requirement.
Clause E2 EXTERNAL MOISTURE: Performance E2.3.1, E2.3.2 and E2.3.7 (b) and (c). Viking Enviroclad Roofing and Deck Membrane System meets these requirements.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Viking Enviroclad Roofing and Deck Membrane System meets this requirement and will not present a health hazard to people.

BRANZ Appraised

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