What is a long run roof?
Long run is sheets of pre-painted steel, which are formed with alternating grooves and ridges to give it strength to help your roof cope with the harshest weather and environments. Dimond long run comes in a carefully selected range of profiles and colours to complement any style of home.
How much does Colorsteel cost?
With Coloursteel starting from around $55 plus GST per square metre, it’s the most cost-effective roofing option with a ‘standard’ three-bedroom house priced around $10,000 to $12,000 to roof or re-roof.
What is the minimum pitch for a roof in NZ?
New Zealand-produced timber is generally ACQ-treated radiata pine. Although they can be laid to a minimum pitch of 18°, steeper pitches (25–30°) are recommended to shed water more effectively.
How long does a Coloursteel roof last?
With COLORSTEEL®, there really isn’t a lot of maintenance to speak of, which is what makes it one of our top recommendations for roofing solutions. Most of the products only require a rain wash with a manual wash every six months, and depending on the environment the roof could last for 30 years.
How long does a steel roof last NZ?
25 to 60 years
How Long Does a Long Run Colorsteel® Roof Last? A good quality Long Run roof has a long lifespan and can last from 25 to 60 years.
How long does an iron roof last NZ?
An average lifespan for a well-installed and well-maintained metal roof is 40-70 years. A lot of metal roofs come with a warranty of up to 50 years.
How much does it cost to reroof a house in New Zealand?
What you choose as your roofing material can also affect the average cost to reroof a house in New Zealand. An architectural long-run roof can cost around $150m2, while metal tiles generally sit around $49-$56m2. Asphalt roofing is closer in price to long-run, at around $100-$120 m2.
What type of roof is cheapest?
Asphalt Shingles
Asphalt Shingles
That’s for good reason. Asphalt is the cheapest of all roofing materials in the market and will last you between 15 to 30 years. This is the best option for homeowners facing budgetary constraints. It is also widely available and comes in a variety of colors.
How far apart are rafters NZ?
Rafters were typically (ex.) 100, 125 or 150 x 50 mm depending on span, and spaced at 900 or 450 mm centres.
What spacing should purlins be?
In order for the sheets to be easily fixed to the purlins, as a rough guide they should be at least 50mm wide. When positioned, roof purlins should be spaced no further than 1.2 metres apart when using sheeting with a thickness of 0.7mm, and 1 metre when using 0.5mm sheeting.
How long should a roof last in NZ?
15 years
By law all roofs in New Zealand have to have a minimum durability of 15 years. Many roofs will last two or three times as long because the house and roof were properly designed, professionally installed and well looked after. But all roofs have a finite lifespan and will eventually need to be replaced.
Does Coloursteel fade?
Colorsteel® ENDURA™ products are expected to fade uniformly over the surface, the extent being no more than 8 Hunterlab units on the Delta E scale, and have a chalk rating of ≤4 (AS 1580 481.1. 11, 1998) after 10 years exposure.
How long will a Galvanised steel roof last?
50 years
Galvanised Steel Roofing Life Expectancy
When it comes to what type of roof lasts the longest, as a roofing material, galvanized steel can last up to 50 years and sometimes longer, but it does have its weaknesses.
How long will a galvanized roof last?
between 40-70 years
While the average lifespan is between 40-70 years, there are a few different factors that can affect the longevity of your roofing system.
Do I need a permit to re roof my house NZ?
► New roofing as part of the construction of a new dwelling or an extension being built on an existing dwelling WILL REQUIRE a Building Consent. ► Re-roofing of an existing dwelling MAY REQUIRE a Building Consent.
How long should a roof last NZ?
Which type of roof lasts the longest?
Roofing material that lasts the longest are concrete, clay or slate tiles. These materials significantly outperform other natural products like wood shakes or any manufactured roofing materials including asphalt shingles and metal roofing. Although these materials have a good lifespan, they are not as durable.
What is the strongest type of roof?
Corrugated galvanized steel is one of the strongest, most durable roofing materials, since it lasts longer, is more resistant to wind, and absorbs less heat than asphalt shingles.
How long can rafters go without support?
A 2×6 spaced 16 inches apart can span a maximum distance of 13 feet 5 inches when used as a rafter, 10 feet 9 inches when used as a joist, and 6 feet 11 inches when used as a deck beam to support joists with a 6-foot span.
What size timber do I need to span 3m?
What size timber to span 3m:- as per general thumb rules and guideline, for flat roof, a 47×170 mm size of timber as floor joists can allows spans up to 3 metres for permanent loads are assumed to be 50 kg/m2 and imposed load of 150kg/m2 when spaced 400mm apart.
How far apart should rafters be NZ?
What size are purlins in NZ?
It should be noted that timber purlins for metal roof cladding are minimum 70mm x 45mm H1. 2 <18% moisture content and that battens used previously for tiles must not be used.
What color metal roof is the most energy efficient?
The most energy-efficient metal roof color is anything in a light shade. Lighter colored metal roofs reflect more heat than darker colored metal roofs, reducing your energy costs in warmer months.
Which color does not fade in the sun?
Blue always seems to be the last color to fade out, so you’re left with this strange blue/white picture.