Why Evaluate

Why property teams evaluate preservation

Extend roof life, reduce disruption, and build a documented decision record for owners and boards.

Capital timing

Extend the planning window for replacement budgeting so capital is deployed on your schedule, not under emergency conditions.

Lower disruption

Reduce tenant and resident disruption compared with full tear-off and replacement, particularly on occupied multifamily and community-association properties.

Documented decisions

Build a defensible record of condition assessment, treatment candidacy, and post-treatment monitoring for owners and boards.

Owner-ready evidence

Provide owners with qualified laboratory summaries and plain-language explanations they can review before approving any action.

Who We Help

Each audience faces different roof-management pressures. A site-specific inspection is always required before any treatment decision.

Multifamily & Apartments

Coordinate roof condition across multiple buildings and vintages. Reduce resident disruption and build documentation for reserve planning.

Condo & Community Associations

Support board decisions with qualified condition information. Align roof planning with reserve study timelines and provide owners with transparent summaries.

Rental Portfolios

Standardize roof assessment across dispersed properties. Prioritize which roofs are candidates for treatment versus replacement.

Premium Properties

Preserve roof appearance and performance without invasive replacement. Document materials and treatment rationale for owner reference.

Decision Guide

Which path applies to your roof?

A roof decision should start with condition, not with a product. Use this general framework to identify the right next step.

PATH A

Aging but structurally sound

The roof is past its prime but decking is sound, there are no active leaks, and shingles show age-related surface deterioration such as oxidation, granule loss, or surface cracking.

Action: Candidate assessment. Request a roof condition assessment to determine whether the roof is a suitable candidate for preservation treatment.

PATH B

Condition uncertain

You are unsure of the current roof condition, there is no recent inspection on file, or the roof is approaching a replacement milestone without clear documentation.

Action: Inspect first. Schedule a roof inspection to establish baseline condition before any treatment or replacement decision is made.

PATH C

Active leaks or major damage

There are active leaks, suspected decking failure, structural concerns, or widespread material failure.

Action: Repair or replacement path. Treatment is not a substitute for replacement when a roof has failed. Engage a qualified roofing contractor for repair or replacement evaluation.

Treatment Path

Asphalt shingle roof treatment path

Preservation treatment is evaluated for assessed asphalt shingle candidate roofs. Laboratory evidence on this page applies to shingle samples under tested conditions only.

Asphalt Shingle Roofs

Applicable to asphalt shingle roofs assessed as structurally sound candidates. Treatment is cold-applied and works below the surface of the shingle. Laboratory testing has been conducted on shingle samples under specific configurations.

Explore shingle treatment →

Laboratory Evidence

Laboratory evidence summaries

Summaries drawn from laboratory testing on shingle samples. Each result applies under the tested configuration and laboratory conditions only.

Treatment is not leak repair, structural repair, an insurance certification, or a substitute for replacement when a roof has failed. Any projection of 10-15 years is a mechanistic projection based on laboratory testing, relevant research, and limited field monitoring, not a guarantee. These summaries should not be extrapolated to membrane roofs or to roof conditions different from those tested.

🔥UL 790

Fire performance

Shingle samples treated with GoNano were evaluated for fire performance characteristics under the UL 790 test standard, under the tested configuration and laboratory conditions. Results describe how treated samples performed in this specific fire test and do not represent field fire performance across all roof conditions.

💥UL 2218

Impact resistance

Shingle samples treated with GoNano were evaluated for impact resistance under the UL 2218 test standard, under the tested configuration and laboratory conditions. Results describe the tested samples' resistance to impact in this specific laboratory configuration.

💨ASTM D3161

Wind resistance

Shingle samples treated with GoNano were evaluated for wind resistance under the ASTM D3161 test standard, under the tested configuration and laboratory conditions. Results describe how treated samples performed in this specific wind test and should not be extrapolated to all installation or weather conditions.

🔬FTIR

Material analysis

Fourier-transform infrared spectroscopy (FTIR) analysis was used to characterize material changes in treated shingle samples, under the tested configuration and laboratory conditions. FTIR results describe molecular-level observations on tested samples and are not a field performance guarantee.

Reviews

What Our Clients Say

Read verified Google reviews from property owners and managers who have worked with NanoSeal NB.

★★★★★

"Our clients rely on clear roof condition information and transparent next steps. Their feedback reflects how we approach every property - inspect first, document the condition, and recommend only what the roof actually needs."

Read Google Reviews on nanosealnb.ca →

Video

Featured explainer videos

Public NanoSeal NB resources providing a general overview of the roof preservation concept. These are not a substitute for a site-specific inspection.

NanoSeal NB - Roof Preservation Overview

NanoSeal NB - How It Works

Client Resources

Ready-to-share public resources for owners and boards. Each asset includes pre-written SMS and email copy.

Roof Preservation Overview

General overview of roof preservation as an alternative to premature replacement. Useful for owners beginning to evaluate whether their roof is a candidate.

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