When Lead flashings are installed, they are secured in place into the chase of the brickwork or masonry. The traditional method for fixing flashings is to use Lead wedges. However, this method can result in a loose fixing. Hall Clips are an effective alternative to wedges.
Hall Clips are an effective alternative to wedges.
They are high tensile ‘v’ shaped stainless steel clips, designed by a roofing contractor to save time and provide a more secure fixing. They hold the Lead flashings in position so that they can be dressed down in to place.
Standard Hall Clips should be used when fixing flashings in a 6-18mm chase. Hall Clips Plus can be used for chase heights of 18-26mm.
Gives a professional finish to linear and step flashing
Provides a secure fixing
Convenient and easy to use
Improves installation time
Helps prevent theft
Hall Clips should be inserted with ‘H’ uppermost
Easily secured with screwdriver or similar tool
Flashing lengths should not exceed 1.5 metres
Use in combination with BLM Lead Pointing Sealant for a clean finish
Packaging and Coverage
Standard Hall Clips available in packs containing 50 clips each
Hall Clips plus available in packs containing 25 clips each
Each pack of Standard Hall Clips fixes up to 20 linear metres of flashing
Each pack of Hall Clips Plus fixes up to 10 linear metres of flashing
Hall Clips ‘How To’ Video Transcription
Below is a transcription of a video shot by BLM with Tim Fuge, Young Leadworker of the Year 2016, on the correct way to secure Lead Flashing with Hall Clips.
Hi, my name is Tim Fuge and we're here at the LSTA Training Centre in Kent to bring you the latest BLM guide to installing Hall Clips.
Why Use Hall Clips on Lead Flashing
When Lead Flashings are installed, they're secured into the chase of the brickwork or masonry. The traditional method for fixing Lead flashings is to use Lead wedges, however this method can sometimes result in a loose fixing. Hall Clips are high-tensile V-shaped stainless steel clips, which provide an effective alternative to traditional wedges. Specially designed with a tapered edge the bottom to grip the lead, they hold Lead Flashings in position to they can be dressed down into place before pointing in.
Standard Hall Clips should be used when fixing flashings in a 6-18 millimetre chase. BLM Hall Clip Plus should be used on domestic properties with a chase width between 18-26 mm. Used in conjunction with BLM Lead Pointing Sealant, they can help you fit flashings up to 20 times faster than the traditional method of using Lead wedges and pointing with mortar, saving you time as well as providing a more secure fixing.
How to use Hall Clips to secure Lead Flashing
When raking out an existing joint, it is important to remove all the mortar to a depth of at least 25 mm. Ensure the joint is clean, dry and free from cement, dust and loose debris. The joint should be at least six mm wide to allow BLM Hall Clips to be inserted to hold the Lead Flashing in place. It is important to remember that no flashing length should exceed 1.5 meters.
Hall Clips should inserted with the H uppermost. They're easily secured with a bolster or similar tool. Always follow LSTA guidelines when fitting Lead Flashings. Hall Clips should be fitted at lap joints and 450 mm centers for linear flashings. At least one clip per step when fitting step flashings. This should be increased to two clips per step for single step flashing. Finish off with BLM Lead Pointing Sealant for a clean and professional finish. Standard BLM Hall Clips are available in handy packs containing 50 clips. Each pack fixes up to 20 linear meters of flashing, 50 steps of step flashing or 25 steps of single step flashing. BLM Hall Clip Plus are available in packs containing 25 clips. Each pack fixes up to 10 linear meters of flashing, 25 steps of step flashing or 12 steps of single step flashing. BLM Hall Clips are recognised as an alternative to fixing flashings with traditional Lead wedges.
For further information or to download a technical or health and safety data sheet, then please visit britishlead.co.uk.
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To learn more best practices when it comes to leadwork use the links below to download the BLM app
Full description of the products, along with Basic Fitting Guides for Fixing Flashings could be found on the downloads below: