Stop undesirable elements from getting under your roof
EFFECTIVE ROOF PROTECTION FOR YOUR HOME
Protect your roof from debris and vermin
Patent No. 571676, Ventperf Registered Trademark
Consisting of specially designed perforated metal strip, Ventperf is cut to the shape of your long run metal roofing profile and custom fitted into the voids where it is trimmed at the eaves.
Ventperf can save you unwanted maintenance and repair bills due to its unique design that will prevent entry of rodents and other pests. It will keep leaves and other debris from being blown into the roof cavity.
Debris and vermin can damage your roof and reduce the ability for air to circulate and keep the underside dry. Ventperf is available to fit all roofing profiles. It can be fitted at to coincide with the build or inserted as a retrofit.
Protect your home for life
Ventperf is cut and custom fitted to tailor to all roofing profiles.
Snug fit prevents rodents, birds and wind blown debris from getting under eaves.
Ventperf is easily fixed to purlins over underlay or to fasica before spouting is installed.
Peforations allow air to circulate, keeping the underside of your roof dry.
Can be used in custom applications.
Passive ventilation applications.
Available in 55 Zincalume
Ventperf is available to fit all roofing profiles
Ventperf is cut and custom fitted to tailor to all roofing profiles. Providing exceptional roof protection.
Installing Ventperf in your roof
Step 1
Step 2
Step 3
Step 4
Watch Ventperf demonstration
And find out about the ultimate in roof protection.
About Ventperf
With over 51 years of hands-on roofing experience, Keith Couchman knows roofs — and the problems that come with them. After running Couchman Roofing for 18 years with a tight-knit team of four, Keith has seen it all: from large-scale commercial builds to small domestic repairs. Over the decades, he’s watched roofing trends change, materials come and go, and most importantly, he’s listened closely to what customers really need.
One common frustration stood out — especially from rural clients and farm owners: birds, mice, and rats finding their way into roof cavities, causing costly damage and disruption. Combined with leaf litter from surrounding bush and trees, these intrusions posed a serious challenge.
That’s where Ventperf was born.
Keith developed Ventperf — a discreet, perforated, profile-cut metal strip designed to:
Prevent birds, rodents, and pests from entering the roof space
Allow passive airflow, maintaining vital ventilation between the underlay and roofing sheets
Extend the life of your roof
Work with any roof profile – new or existing
Proudly designed and made in New Zealand, Ventperf is now protecting buildings and sheds across the country. It's durable, budget-friendly, and built to last — without compromising on performance or appearance.
Ventperf can be retrofitted to existing roofs or installed during new builds.
Get in touch with Keith today to find out how Ventperf can make your roof more secure, ventilated, and long-lasting.
Ventperf – Smart Protection for Your Roof
Proudly designed and manufactured in New Zealand
Contact Us
Call 027 379 5011
Email keith@ventperf.co.nz
