
Yossi Dagan
Founder & CEO
"There are not enough warm words to describe Yossi Dagan — calm, kind, and endlessly professional." — Gil Nadel, Yuval Nadel Projects
Roof Dagan — About and Company Profile
About the Company
Roof Dagan was founded in 1990 by Yossi Dagan. The company began with carpentry and tiled roofs, then built light-construction homes across Israel under the watchful eye of a German engineer who became Yossi’s mentor. The rigor and drive for perfection of those years have guided the company to this day.
From installing light steel structures as a subcontractor, with Yossi leading every installation himself, the company grew into a main contractor leading structural, building and roofing projects across Israel, among them swimming-pool enclosures, its core specialty, as well as industrial plants and logistics centers.
Roof Dagan also manages the planning and construction of complex steel structures across Israel, with a particular focus on advanced technologies and efficient, cost-effective budget management for the client.
Planning, Quality and Safety
Every building starts with good planning. We work closely with Israel’s leading architects and designers, advise from the design stage, and insist on meeting standards, schedules, precise load calculations and uncompromising safety, so that every plan becomes a flawless, high-quality and safe building.
International Reputation and Consulting
The company’s reputation reaches beyond Israel: Yossi Dagan advises and trains roofing and structural companies around the world, among them Polygal, Palram and SEP of Italy, and companies in Portugal, Spain, South Africa, England and Turkey.
End-to-End Execution
A skilled construction team, on-schedule delivery, and strict adherence to safety standards
Leading Materials
Galvanized steel frameworks and premium polycarbonate panels built to last for years
Full Engineering Design
Guidance from early planning through approval — in coordination with architects, structural engineers, and authorities
Service & Warranty
We stay with our clients after handover — service, maintenance, and upgrades
30+
Years of experience
82
Documented projects
255,160
m² roofed
9
Recommendation letters