Tel: 01824 703344

Roofing

• led-a-flex - Gloves should be worn when handling the product due to sharp edges of the aluminium within the coil.
• led-a-flex can be cut with a sharp knife or scissors.
• led-a-flex can be installed in Valleys in full roll lengths, however for detailed work it is advisable to use lengths of no longer than 2.5m for ease of handling.
• led-a-flex is not heavy, however it is wise to completely support all water seals with insulation or mechanical support.
• Waterproof all connections/joints by using led-a-proof or similar, bitumen free, approved adhesive sealing compound. We recommend using a minimum of 2 strips per joint.
• It is advisable to lap flashings by a minimum of 100mm.
• When cutting Flashing set out with a Marker Pen, checking all dimensions, then cut. Care should be taken in jointing to use led-a-proof bitumen free adhesive sealing compound, all joints should be well lapped.
• Due to the lightweight nature of led-a-flex it is advisable to use led-a-fix self-adhesive butyl tape under the led-a-flex to bond it to the substrate and prevent wind uplift.
• When using led-a-flex on top of PVC Membranes it is advisable to use led-a-flex with a Geotextile separating layer - please enquire for details.

 Cavity Trays

• led-a-flex - Gloves should be worn when handling the product due to sharp edges of the aluminium within the coil.
• led-a-flex is not heavy. However it is wise to support the water seals with, for example, a three-quarter brick.
• To prevent led-a-flex from getting blown about in the wind we recommend gluing the flashing to the underlying structure with led-a-proof adhesive sealant.
• Make sure each flashing has its own open butt joint.
• Prevent water from leaking through the head and tail of the bricks. Close off the ends with a strip of DPC or led-a-proof adhesive sealant.
• The inner and outer corner fittings can be made using led-a-flex.
• The inner and outer corners are normally constructed in two parts. This enables fitting to different cleft angles.
• The underlying water seal strips should not overlap. Maintain a gap of about 1 cm.
• Finish each strip with a foldable ridge.
• Apply a bead of led-a-proof bitumen free adhesive sealant compound.
• Glue the first fitting.
• Apply a bead of led-a-proof bitumen free adhesive sealant compound at the location of the second fitting.
• Glue the second fitting.
• Apply a pressure roller to all seams.

For step by step video guides showing the led-a-flex installation procedures for different applications, please click here.