How to Install a Resitrix Flat Roof

HOW TO INSTALL A RESITRIX FLAT ROOF SYSTEM Step by step guide of the Self Adhesive Heat Weldable Resitrix membrane being installed on a flat roof. 1 Deck Preparation 2 Stir FG35 Primer 3 Apply FG35 Primer Stir the FG35 Primer. FG35 primer should be kept in a warm room prior to installation if the weather is cold. This will help achieve a consistent even Apply the FG35 primer evenly using a medium pile roller. Always ensure primer is applied to the perimeter and upstands of the roof first before coating the main roof area. The roof deck should be clean and dry. coverage. 4 Allow FG35 Primer To Dry 5 Roll out the Rubber Membrane 6 Score Release Paper Allow the primer to fully dry before laying the membrane. This Position the membrane against any upstands and score the release paper as this will be removed at a later stage. Roll out the rubber membrane. Take note of the non adhesive lap when laying out adjacent sheets. could take between 30 minutes and 1 hour. Never prime an area bigger than the area to be covered in one day. 7 Roll the membrane back half way 8 Score Release Paper 9 Remove Release Paper Score the release paper with a Remove the release paper whilst rolling the membrane back into position. Once the membrane has been positioned, roll the membrane sharp craft knife. back to the centre of the roof so that the release paper can be removed. 10 Broom the Membrane 11 Bond to Upstands 12 Form Internal Corner Bond membrane to upstands and walls by removing the release Form internal corner. It is often best to remove the release paper Use a broom to ensure that the membrane has full contact with in stages leaving the paper inside the pigs ear till last to be removed. the primed deck. раper. 13 Repeat Process for Additional Rolls 14 Cut Membrane Around Roof Details 15 External Corner Detail Repeat process for adjacent Cut the membrane to length and Additional self adhesive sheets can be used to waterproof upstands. Ensure sufficient membrane is allowed for to give a 50mm overlap on the deck membrane and adjacent corner membrane sheets. around roof details. membrane. 16 Heat Weld Meml ne Overlaps 17 Heat Weld Corner Flap 18 Installing Corner Patch Heat weld any membrane overlaps prior to installing corner patches. Heat weld the flap used to wrap around the external corner. Cut a circular corner patch and cut out a finger width section from the circle, rounding off any corners. 19 Break Glass Fibre Reinforcement Strands 20 Heat Weld Corner Patch 21 Cover External Corner Heat weld the Resitrix corner Heat weld an additional piece of Stretch the corner patch to break the integral reinforcement strands. patch. Self Adhesive membrane over the You will hear them break and this upstand and corner patch. will allow the membrane patch to cover the corner. 22 Internal Corner Option 2 23 Form the Internal Corner Patch Step 1 24 Form the Internal Corner Patch Step 2 Where two separate sheets of Fold the circular patch in half. Fold the patch again in to quarters and release one of the folds to form a pocket. membrane terminate at an internal corner it will be necessary to install a corner patch. 25 Heat Weld Internal Corner Patch 26 Remove Release Paper From Edge 27 Use Seam Roller to Form Membrane on Corners Heat weld the internal corner Remove the release paper from Use a seam roller to mould the membrane to edge detail ensuring 100% bond on angle changes. patch. the section of membrane that will be used to form an upstand kerb over the roof edge batten. 28 Heat Weld Membrane Laps 29 Good Heat Weld 30 Install Edge Trims Heat weld Resitrix membrane laps. Ensure a 2" 50mm gap A good heat weld is indicated by Install flat roof edge trims using the installation guide relating to your chosen roof trims. is a bleed out of the molten polymer bitumen from the bottom of the top sheet being maintained between the heat gun nozzle and seam roller for a consistent weld. Excess pressure should not be required to create a welded. bleed. 31 Installation Complete! Completed installation of a Self Adhesive EPDM flat roofing membrane. EPDM Roofing Suppliers to the Trade & DIY Rubber4Roofs www.rubber4roofs.co.uk