Slate roofing in Albuquerque.

Compare before you decide

Materials and tradeoffs · Assembly plan · Installation checks · Repair or replacement · Your choices

What to look for

• A missing or displaced piece visible from the ground
• Fragments below the roof
• A leak near a valley, wall or penetration

Use observations from the ground, an ordinary occupied room or photos you already have. Do not climb onto a roof, enter an unsafe area, lift materials or test a damaged component. A photo can help explain the concern; it cannot establish the cause or hidden condition.

Why a closer look can help

Ask about matching, attachment, flashings and specialist access. Do not walk on slate or assume every visible piece must be replaced; scope depends on the roof and its details.

Share where you see it, when it began, whether it changes during rain and any known repair history. Include safe photos if you already have them. Unknown roof material or age is an acceptable answer.

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Which materials and approach fit best?

The best roof is a compatible, well-detailed assembly that fits this building and your priorities. Compare these options after confirming roof slope, structure, existing condition, drainage, exposure and applicable requirements. Availability and installer experience also matter; no material wins every project.

Natural slate matching and repair

Compare compatible size, thickness, appearance and condition when retaining an existing roof. A matching-looking piece is not enough without suitable attachment and detailing.

New natural slate assembly

Ask for the specified slate and an evaluation of structural support, access and flashings. Weight and specialist installation should be included in the comparison.

Composite slate alternative

Compare a separately documented synthetic product when weight, availability or budget influences the decision. Its installation and warranty are its own, not those of natural stone.

How a well-planned assembly comes together

Use this sequence to review a proposal, not as installation instructions. The selected manufacturer’s current details, approved assembly, project design and applicable local requirements control the actual layers, attachment and dimensions.

1. Assess structural support, deck condition and existing fastening/flashings before defining the work.
2. Specify underlayment and durable compatible flashings at valleys, walls and penetrations.
3. Follow the slate layout, headlap and attachment design appropriate to the selected slate and slope. Avoid relying on exposed face patches as a substitute for a proper detail.
4. Plan specialist access and interfaces with snow retention or other accessories where the project calls for them.

Installation quality: evidence to ask for

• Ask how sound slates will be protected and which pieces or flashings actually need replacement.
• Request photographs and an explanation of repair fastening, matching and valley details before accepting broad replacement claims.

Ask who checks the work, which details will be photographed before concealment and what completion records you will receive. A clean finished surface cannot show every hidden connection.

Repair, restore or replace?

A few slipped pieces or a failing flashing can require a very different scope from widespread slate or fastening failure. Ask for separate findings and alternatives, including the limits of retaining surrounding materials.

Ask what is known, what is still concealed and what additional assessment would change the recommendation. Roof age, a single stain or a material label should not be the only explanation.

You choose the next step

You do not need to know the cause or select a material before asking a question. Request the findings, compare suitable options and take time to review the written scope. Sending an inquiry does not authorize construction or optional upgrades.

• Set your priorities: stop a specific leak, retain sound materials, improve the assembly, manage disruption or stay within a budget.
• Ask for a base option and separately priced alternatives where technically suitable. Request the reason if a smaller repair is ruled out.
• Agree any assessment fee, access and testing before the visit. Ask which observations, photographs or written findings are included.
• Before accepting work, confirm materials, exclusions, payment terms, timing and the process for approving additional work. You can request clarification or another opinion.

The proposal and signed agreement define the actual work and terms. This checklist helps you ask for the information you want before deciding.

Plan for ownership after the work

Use qualified access and keep other trades off unsupported slate. Preserve matching material and repair history where practical.

Separate the material warranty from workmanship coverage. Review the actual documents for eligibility, exclusions, maintenance, transfer terms and how to report a problem. No service life, energy saving or storm outcome is guaranteed by choosing a material alone.

Check the technical reference

Consult National Slate Association: technical guidance for system guidance. Reference links are educational and do not imply Roof Doctor certification, manufacturer affiliation or endorsement.

National Slate Association: technical guidance · Warranty questions · Sample written scope