Wisam Tanmiyah CompanyWisam Tanmiyah CompanyWaterproofing & Insulation Division
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Our projects: 1,500+ insulation projects executed

Proven waterproofing and thermal insulation for government, residential, commercial and industrial projects with approved main contractors.

Latest work

Polyurea lining for a commercial project, Riyadh

On site · Riyadh · May 2026

Polyurea lining for concrete basins at a commercial project

We lined exposed concrete basins at a commercial project in Riyadh with hot-sprayed polyurea. The concrete was prepared, corners and pipe penetrations treated, then the floor and walls were sprayed in a single working day, leaving one continuous, seamless grey membrane.

System
Hot-sprayed polyurea
Equipment
GRACO Reactor 2 E-30
Execution
Floor and walls in one working day
Inspection
Thickness check & holiday test
About our polyurea system
Spraying polyurea on a concrete basin floor at a commercial project in Riyadh
Polyurea coat advancing from the primed concrete towards the walls
Finished grey polyurea membrane inside a concrete basin, turned up the walls
Technician spraying polyurea while a colleague manages the heated hose
Spray crew at work
Spraying polyurea on the basin floor
Spraying polyurea on the walls
Spray crew at work
The basin after spraying
Selected projects

Projects executed across different sectors

Approval letters and experience certificates are available to relevant parties on request.

Project typeSectorScopePeriod
Residential compound، 266 duplexesGovernment housingScreed to falls, PU foam, XPS, geotextile, acrylic2024 – 2025
Education buildings، schoolsEducationWaterproofing works2025
Residential villas، housing projectGovernmentPU foam thermal insulation & roof waterproofing2024 – 2025
Residential projects for a developerReal-estate developmentPU foam + lightweight concrete to falls2024
Residential buildings، maintenanceProperty managementSupply & install PU foam 45–50 kg/m³ + waterproofing2024
Warehouse roofs، 5,640 m²Private sectorPU foam thermal insulation, 5 cm2023
Spraying polyurea on a concrete basin floor at a commercial project in Riyadh
Spraying polyurea on a concrete basin floor at a commercial project in Riyadh
Spraying polyurethane foam on a residential roof in Riyadh
Spraying polyurethane foam on a residential roof in Riyadh
Dermabit bitumen membranes with sealed overlaps in a foundation pit
Dermabit bitumen membranes with sealed overlaps in a foundation pit
Rolling the reflective acrylic coat over the foam
Rolling the reflective acrylic coat over the foam
Roof after the white reflective protective coat
Roof after the white reflective protective coat
Liquid bitumen waterproofing of a curved concrete basin before backfill
Liquid bitumen waterproofing of a curved concrete basin before backfill
Technicians spraying polyurethane foam on a concrete roof in Riyadh
Technicians spraying polyurethane foam on a concrete roof in Riyadh
High-pressure polyurea spraying on a facility roof
High-pressure polyurea spraying on a facility roof
Torch-applied bitumen membranes on a large concrete roof
Torch-applied bitumen membranes on a large concrete roof
Glossy warehouse epoxy floor with yellow lane markings
Glossy warehouse epoxy floor with yellow lane markings
Water tank after completing the smooth blue lining
Water tank after completing the smooth blue lining
Wide metal roof fully covered with white foam insulation
Wide metal roof fully covered with white foam insulation
Two technicians spraying polyurea across a large concrete basin
Two technicians spraying polyurea across a large concrete basin
Concrete tank after internal cementitious waterproofing
Concrete tank after internal cementitious waterproofing
Metal hangar roof after completed foam insulation
Metal hangar roof after completed foam insulation
Liquid bitumen waterproofing of a bathroom floor around the drain
Liquid bitumen waterproofing of a bathroom floor around the drain
Crew applying polyurea to water tank walls
Crew applying polyurea to water tank walls
Painting yellow and black safety stripes on an epoxy floor
Painting yellow and black safety stripes on an epoxy floor
Geotextile layer laid on a roof walkway before the protective coat
Geotextile layer laid on a roof walkway before the protective coat
Finished grey polyurea membrane inside a concrete basin, turned up the walls
Finished grey polyurea membrane inside a concrete basin, turned up the walls
Thermal foam insulation on an industrial metal roof
Thermal foam insulation on an industrial metal roof
Bitumen membrane installation with correct roll overlaps
Bitumen membrane installation with correct roll overlaps
Videos

Watch the work on site

Spraying polyurea on the basin floor
Spray crew at work
Spraying polyurea on the walls
The basin after spraying
Spraying foam on an exposed roof
Checking foam layer uniformity
Spraying foam on a metal roof
Spraying detail at roof edges
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