Projects

Photos from our roofs

Roofs we have worked on: bitumen membrane, EPDM membranes and PIR insulation. Parapet walls, chimneys, rooflights, outlets and penetrations — the places that decide whether a roof stays watertight.

Specialisation
Flat roofs
Experience
20+ years
Area
Kraków · Lesser Poland

Flat roof of a block of flats

Torch-on bitumen covering on a large roof with a rooftop plant room, a rooflight and many service penetrations. Every chimney, exhaust vent and parapet wall got its own flashing.

  • Torch-on bitumen membrane, two layers
  • Parapet flashings with drips
  • Ventilation chimneys and exhaust vents
  • Plant room and rooflight flashing
The whole roof after completion: rooftop plant room, rooflight, ventilation chimneys and flashed parapet walls.
Rooftop plant room — flashing at the wall, chimneys and service penetrations.
A roof vent bonded into the covering; scaffolding by the parapet wall in the background.
Roof surface with a cable run and an exhaust vent — even laps, no blisters.
Bitumen membrane turned up the parapet wall, roof vents bonded into the covering; a cable run along the roof.
Parapet corner: membrane upstand and a torched seam in the corner.

Flat roof in PVC membrane

A large flat roof on a new building, covered with hot-air-welded PVC membrane. Parapet walls insulated with PIR boards and clad with membrane to their full height; rooftop structures, rooflight, outlets and equipment bases finished with the same membrane.

  • Hot-air-welded PVC membrane
  • Parapet walls insulated with PIR, membrane to full height
  • Rooftop structures, rooflight and outlets
  • Equipment bases
Finished roof surface in PVC membrane — rooflight, rooftop structures, outlets and vents all flashed; the lightning protection conductor on supports.
Rooftop structures clad with PVC membrane; the rooftop unit stands on bases clad with the same membrane.
Rooftop structures in PVC membrane and a parapet wall with the membrane turned up to its full height.
PVC membrane strips at the parapet wall — welded laps and an upstand onto the wall; a lightning protection mast alongside.
A strip of roof between the parapet wall and the building wall — membrane turned up the wall and finished with a termination bar.
Equipment bases clad with PVC membrane, with flanges welded to the roof surface; further on, parapet walls before flashing.
Roof surface in PVC membrane during the work; parapet walls insulated with PIR boards waiting for the membrane upstand.
Exhaust vent on a rooftop structure — flashing around the base of the duct; below, the roof surface and parapet wall in PVC.

Extension roof at a family home

Torching the cap sheet on the flat roof of an extension — from unrolling the roll and heating its underside to pressing down every lap.

  • Cap sheet torched from the roll
  • Torching
  • Pressing down the laps
  • Eaves flashing
Torching the edge of a membrane strip at the eaves.
Pressing down a lap right after torching.
Workstation: torch, gas cylinder, roll on the roof surface.
Roof surface halfway through — membrane freshly torched, laps even.
Finished roof surface: an even finish with no blisters.

House roof with a patio

A house in the woods with an inner patio. The whole roof is covered with EPDM RESITRIX membrane — roof slopes, valleys and the edges above the glazing, which can be seen from every side.

  • EPDM RESITRIX membrane
  • Valleys and internal corners
  • Edges above the glazing
Roof edge above the patio — RESITRIX membrane taken to the eaves, internal corner with no creases.
The roof above the glazing seen from above — even strips of membrane and an upstand at the edge.
The roof from above: two valleys running down to the patio, membrane laid in strips over the whole roof.
A long roof slope above the glazing — membrane strips running with the fall, edge with flashing.
Building corner — membrane carried over the hip down to the eaves.
A steep roof slope covered with RESITRIX — strips running with the fall, laps welded; a roofing ladder for the duration of the work.

Parapet walls and flashings in sheet metal

The roof edge decides whether the whole roof stays watertight. Bitumen membrane turned up the parapet wall, coated sheet-metal drips and flashing strips, outlets in the corners — the places where water looks for a way in.

  • Membrane upstands on the parapet walls
  • Sheet-metal drips and flashing strips
  • Roof outlets in the corners
  • Laps along the whole roof surface
Parapet wall with a coated sheet-metal drip; roof surface in cap sheet.
Corner of a parapet wall with flashing and a roof outlet.
A roof outlet with its flange bonded into the bitumen membrane.
Parapet corner — bitumen membrane turned up the vertical face.
Roof surface by the parapet wall: even laps and edge flashing.
A long stretch of roof with the strips of bitumen membrane laid.
Cap sheet laps along the whole roof surface.

Flat roofs of terraced houses

Several terraced units with flat roofs: PIR board insulation and EPDM RESITRIX SK W membrane, hot-air welded at the laps. Parapet walls with full-height upstands, flashings at chimneys and rooflight bases.

  • PIR board insulation
  • EPDM RESITRIX SK W membrane
  • Upstands on the parapet walls
  • Chimneys and rooflight bases
Rooflight base and ventilation chimney flashed with membrane; behind them, a parapet wall with an upstand.
More units during the work — PIR boards at the parapet walls and rolls of RESITRIX SK W on the roof.
Finished roof surface and parapet wall with the membrane turned up to its full height; a rooflight base in the corner.
Ventilation chimneys flashed at the base; a roll of RESITRIX SK W by the rooflight.
Parapet corner — membrane turned up both faces and welded in the corner.
Rooflight base clad with membrane; a hot-air welder alongside.
Roof surface and parapet walls clad with RESITRIX; a hot-air welder on the roof and a view of the estate beyond the fence.
Membrane turned up a block-built parapet wall, with a ventilation penetration next to the roof surface.
A block-built chimney with an opening next to it — membrane brought up to the base before flashing.

Chimneys, rooflights and penetrations

The most vulnerable spots on a roof. The wall primed and reinforced with mesh, bitumen membrane turned up onto the plinth and torched over its full height, the rooflight flashed all the way round — no shortcuts.

  • Priming and mesh on the walls
  • Membrane upstands on the chimneys
  • Rooflight base flashing
  • Torching
Membrane turned up the chimney base — torched over its full height.
Parapet wall primed and reinforced with mesh before flashing.
Chimney flashing: vertical upstand and a torched seam in the corner.
Two rendered chimneys — bitumen membrane turned up onto the plinths, sealed corners.
Dome rooflight — base flashed with bitumen membrane.
Rooflight base before the flashing is closed.
A chimney with a sheet-metal cap and a bitumen-membrane roof; the city in the background.
A roof vent; materials for the next stage on the roof.
Torching the membrane — a controlled flame at the lap.
Roof surface during the work — tools and a roll of bitumen membrane on the roof.

Balcony with a wrought-iron railing

A balcony on an older building with an ornamental railing. RESITRIX membrane over the whole slab, turned up the wall, and a separate hot-air-welded patch around each railing post.

  • EPDM RESITRIX membrane
  • Patches around the railing posts
  • Upstand onto the wall
Balcony covered with RESITRIX: membrane turned up the wall, patches welded around the posts of the wrought-iron railing.

Floor waterproofing with torch-on bitumen membrane

A house under construction: torch-on bitumen membrane torched onto the slab under the future floor — in the rooms, by the doors and in the garage. Where it meets the walls, the membrane is turned up onto the primed masonry.

  • Bitumen membrane torched onto the slab
  • Upstands onto the walls
  • Rooms, thresholds and garage
Bitumen membrane on the slab between partition walls — turned up onto masonry primed with bitumen.
Room by the door: strips of bitumen membrane over the whole floor, upstands at the threshold and walls.
Corner of a room — bitumen membrane turned up both walls, unbroken in the corner.
A large room during the work: torched strips of bitumen membrane, a gas cylinder and a roll for the next strip.
Garage — bitumen membrane taken right up to the door, laps torched along their full length.

Valley between roof slopes

A flat valley between two steep roof slopes, made with RESITRIX membrane. Water from both roofs drains to a single outlet, so there is no room here for even one leak.

  • RESITRIX membrane in the valley
  • Outlet in the valley
  • Hot-air welding
Valley between roof slopes: membrane strips turned up on both sides, an outlet in the middle; the hot-air welder in the foreground.

Low roof at a family home

Cap sheet torched from the roll on a low flat roof at a house. The roll is guided with a hook, the torch goes underneath, lap after lap.

  • Cap sheet
  • Torching from the roll
  • Laps pressed down while hot
Torching a strip from the roll — the torch underneath, the roll guided with a hook.
Roof surface being laid — gas cylinder and torch on the roof.

Terrace on the upper floor

A terrace outside an upper-floor door of a house under construction. RESITRIX membrane over the whole surface, turned up the wall and taken to the door threshold.

  • RESITRIX membrane
  • Upstand onto the wall
  • Junction with the door threshold
Upper-floor terrace: RESITRIX membrane strips, an upstand onto the wall and the junction with the door threshold.

Flat roof with ALUTRIX and PIR

A flat roof at the stage of the system’s lower layers: self-adhesive ALUTRIX 600 vapour control layer over the whole roof surface and PIR boards on the parapet walls.

  • ALUTRIX 600 vapour control layer
  • PIR boards on the parapet walls
  • Sealed corners and penetrations
ALUTRIX 600 vapour control layer on the roof surface, parapet wall clad with PIR boards — a corner and a penetration through the wall.
The whole roof surface under the ALUTRIX 600 vapour control layer; PIR boards on the parapet walls.

Dormer roofs on a block of flats

Flat dormer roofs on a building under construction, covered with RESITRIX membrane, between steep standing-seam metal roof slopes. Work from scaffolding, several storeys above the ground.

  • RESITRIX membrane on the dormer roofs
  • Edges at the eaves
  • Working from scaffolding
Flat dormer roofs covered with RESITRIX membrane; next to them, roofing underlay and standing-seam metal.

Outlets and penetrations sealed with membrane

Outlets, pipes and ventilation ducts are where leaks most often begin. Each of these points gets a RESITRIX membrane patch or collar, hot-air welded all the way round.

  • Patches around outlets
  • Pipe collars
  • Welded all the way round
A roof outlet in a square membrane patch; the patch corners reinforced with round overlays.
Outlet with a leaf guard — membrane patch welded all the way round.
Two pipes by the wall — membrane collars all the way round, patches welded with a visible bead of bitumen.
Pipe by the parapet wall: RESITRIX SK W membrane turned up the wall, a collar round the pipe.

Cantilevered slabs on a building under construction

A row of projecting slabs on the facade of a building under construction, each covered with RESITRIX membrane turned over the edges. Work from scaffolding.

  • RESITRIX membrane on the slabs
  • Membrane turned over the edges
  • Working from scaffolding
Projecting slabs on the facade covered with RESITRIX, one after another; scaffolding and wall insulation in the background.

Flat roof of a commercial building

A large flat roof during the work: membrane laid in strips over the whole roof surface, bases for the ventilation units clad with membrane before the units were installed.

  • Membrane on a large roof
  • Equipment bases
  • Upstands on the parapet walls
Roof surface with even laps and two ventilation bases clad with membrane; Kraków in the background.

Work on the roof of an office building

The existing roof of an office building with services on the roof. New strips of membrane welded over the old covering — without stripping the whole roof.

  • New membrane strips over the existing covering
  • Working around rooftop services
A new membrane strip welded over the existing covering, along the services on the office building roof.

Ballasted roof with gravel

A flat roof at a family home, weighed down with a layer of gravel. The edge is finished with sheet-metal flashing, and water from the higher roof runs onto a guard plate rather than straight onto the gravel.

  • Gravel ballast
  • Sheet-metal edge flashing
  • Drainage from the higher roof
Roof with gravel ballast: sheet-metal parapet flashing and a downpipe from the higher roof above a metal guard plate.

Balcony after renovation

The balcony after the work — new tiled floor and edge flashing. Scaffolding still up against the facade.

  • Tiled floor
  • Balcony edge flashing
Balcony with a new tiled floor; scaffolding still up against the facade.

Your roof could be next

We’ll come, take a look and tell you plainly what needs doing. Quote on site.

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