Warranty

Two warranties on every Interlock® roof.

One from the manufacturer for the material. One from us for the installation. What each covers, how long it lasts and who to call.

The material

Guardian Lifetime Limited Material Warranty

Issued by the manufacturer, Interlock Roofing

Covers the aluminum roofing material and its factory finish against manufacturing defects, subject to the exclusions in the document.
Runs for as long as the original purchaser owns the home.
Transfers once, to the next registered owner, with coverage to 50 years from the substantial completion date.
The Alunar® finish is warranted for 30 years against chalking and fading beyond stated limits.
Report a claim in writing within 30 days of the issue becoming known.
Does not cover installation workmanship.

Claims

guardian@interlockroofing.com

Read the warranty (PDF)All proof documents

The installation

10 Year Limited Labor Warranty

Issued by the installer, Interlock Metal Roofing (New England) Inc..

Covers the workmanship of your Interlock® roof installation for ten (10) years from the Substantial Completion Date.
For the purchaser named on the certificate while a named purchaser owns and lives in the home. It is not transferable.
Report a workmanship issue promptly, and no later than 10 days after you discover it.
Takes effect once the purchase contract is paid in full.
Does not cover the roofing material, which has its own warranty, or ice damming, snow and ice shedding and the other listed exclusions.

Claims

newenglandservice@interlockroofing.com (508) 257-7859

Read the warranty Download (PDF)

Side by side

How the two warranties compare

Term	Guardian material warranty	10 Year labor warranty
Issued by	Interlock Roofing, the manufacturer	Interlock Metal Roofing (New England) Inc., the installer
Covers	The roofing material and its factory finish	The installation (workmanship)
How long	As long as the original purchaser owns the home	Ten (10) years from the Substantial Completion Date
Transfer	Once, to the next registered owner (to 50 years from substantial completion; $300 fee, within 60 days of the sale)	Not transferable
Report a problem	In writing, within 30 days of the issue becoming known	Promptly, and within 10 days of discovering a workmanship issue
Contact	guardian@interlockroofing.com	newenglandservice@interlockroofing.com · (508) 257-7859

These are summaries. The warranty documents control, and the terms that apply to your roof are the ones on the documents you receive with your contract. A free paper copy of the Guardian warranty is available on request.

Questions

Warranty questions, answered

Not sure which warranty applies? Email newenglandservice@interlockroofing.com or call us first at (508) 257-7859.

What warranties come with an Interlock roof in New England?

Two. The manufacturer, Interlock Roofing, gives the Guardian Lifetime Limited Material Warranty on the aluminum material and its factory finish. The installer, Interlock Metal Roofing (New England) Inc., gives the 10 Year Limited Labor Warranty on the installation. They are separate documents with separate terms.

What does "lifetime" mean in the Guardian warranty?

For as long as the original purchaser owns the home on which the roof was installed and remains its registered owner. It is the purchaser's lifetime of ownership, not the life of the house, and it is a limited warranty: the document sets out what is covered and what is excluded.

Can I transfer the warranty if I sell my home?

The Guardian material warranty transfers once, to the first subsequent registered owner, who receives coverage to 50 years from the substantial completion date. The new owner sends proof of purchase to the manufacturer within 60 days of the change of ownership with a $300 transfer fee.

Does the Guardian warranty cover hail?

It covers splitting, cracking and perforation of the panels from hailstones 1.5 inches in diameter or less. Other hail damage, such as cosmetic dents, is excluded, along with severe weather events and other exclusions listed in the document.

Does the warranty cover ice dams?

No. Ice damming is a stated exclusion of the material warranty. Ice dams come from heat loss into the attic and from ventilation, and we look at both with you before the roof goes on.

Which warranty do I use for a leak?

If the problem is in how the roof was installed, such as flashings, trim or a detail, it is a labor warranty matter for Interlock Metal Roofing (New England) Inc.. If the problem is a defect in the panels or their finish, it is a Guardian matter for the manufacturer. If you are not sure, call us first and we will tell you which applies.

Are snow guards covered?

No. The Guardian warranty says snow guards and snow-rails are not a manufacturer's warranty issue, and service charges apply to add, remove or move them. Contact us to arrange it.