Leaks after wind-driven rain
Note whether water appears only during certain storms. The timing helps explain the issue, but it does not identify the roof detail responsible.
Look beyond the visible wet spot.
Worn seams and roof edges
Share any known repairs around seams, parapets, or penetrations. These connections need to work with the roof covering.
A coating over an older roof
Describe any coating already present and when it was applied, if known. The condition underneath matters before another treatment is considered.
What does roof waterproofing involve?
The proposed work should explain which roof areas need preparation, which damaged details need repair, and how the waterproofing treatment suits the existing material. Treating only the most visible patch may leave another entry point untreated.
When a coating may be considered
A suitable existing roof may be a candidate for a protective coating. The covering, moisture condition, drainage, and compatibility need assessment first. See our roof coating page for that specific service.
When repairs come first
Damaged flashing, open seams, or deteriorated roofing may need repairs before a protective treatment. Extensive damage may require a different scope; waterproofing does not automatically replace repair or replacement.
What affects the cost?
An estimate should reflect the actual area and work proposed for your property. Useful points to discuss include:
- Access to the work
- Height, nearby structures, and any finishes or obstructions around the affected area.
- Preparation and repairs
- What must be cleaned, removed, or repaired before a treatment can be applied.
- Scope and materials
- The area being treated, specified materials, and any work needed to restore disturbed surfaces.
Unico usually arranges a site visit after you get in touch. Request a free estimate and describe the work you are considering.
Talk to Unico in Corona, Queens.
We serve homes and businesses across Queens, NYC, and Long Island. Call (347) 380-6165 or use the form below. Contact hours are Monday–Sunday, 7 AM–9 PM.
Roof Waterproofing questions
What is the best waterproofing for a roof?
There is no universal product for every roof. The existing material, condition, slope, drainage, and details determine what is suitable. Request a scope that explains the proposed treatment and preparation.
How is a roof properly waterproofed?
The work begins with understanding the entry points and roof condition. Preparation, repairs, and a compatible system need to be considered together. The exact sequence depends on the roof and selected product.
What can go wrong with roof waterproofing?
Treating an unsuitable or damaged surface, overlooking roof connections, or applying an incompatible product can leave the underlying problem unresolved. Ask how the proposed work addresses those conditions.
Does roof waterproofing replace roof repairs?
Not necessarily. A protective treatment and repairing a damaged component are different tasks. The scope may need both; a coating should not be assumed to fix all leaks.