Whanganui Decramastic Roof
Decramastic Roof Whanganui
Decramastic roofs—popular in New Zealand homes built in the 1970s and 80s—are lightweight metal tiles coated with bitumen and stone chips. While durable, they’re prone to dents, corrosion, and coating wear over time, especially in Whanganui’s damp and windy climate. Many property owners aren’t sure whether to restore or replace them. The good news? Most decramastic roofs can be professionally restored for a fraction of the cost of re-roofing.
Benefits:
Lightweight yet durable
Easily restorable
Long lifespan when maintained
Cost-effective alternative to replacement
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What Service Do You Need?
For a new roof, we provide full installation of durable, modern roofing materials tailored to your home or business.
If your Decramastic roof is severely damaged or corroded, a re-roof ensures a fresh, long-lasting protective layer.
When the structure is sound but showing wear, restoration revitalises your existing roof with recoating to extend its life and improve appearance.
Common Issues With Decramastic Roofing
Decramastic roofs were a popular choice for Kiwi homes, but after decades of exposure, they can show serious signs of wear—especially in Whanganui’s damp and coastal climate. Here are the most common problems you’ll likely see:
Dents from Foot Traffic or Hail
The pressed metal tiles are lightweight and can easily dent if walked on or hit by hailstones.Bitumen Coating Breakdown
Over time, the original bitumen and stone-chip coating deteriorates, leaving tiles exposed to the elements.Rust and Corrosion
Moisture from Whanganui’s frequent rain and coastal air can cause rust, particularly around fixings and edges.Moss and Lichen Growth
Organic buildup not only looks unsightly but traps moisture, accelerating roof decay.Loose or Missing Tiles
Age, wind, and corrosion can cause tiles to lift or fall off—leaving your roof vulnerable to leaks.
Should I Repair Or Re-Roof My Decramastic Roofing?
Deciding whether to repair or re-roof your Decramastic roof depends on its condition. If the metal tiles are mostly intact, with minor dents, rust, or worn coatings, a professional repair or restoration can extend its life by 10–15 years at a fraction of the cost of replacement. However, if there are widespread structural issues, broken or missing tiles, or extensive corrosion, a full re-roof might be necessary for safety and long-term protection. In Whanganui’s damp climate, timely repairs help prevent leaks and damage. Consulting a local roofing expert will give you the best advice tailored to your roof’s condition.
