Our Roofing and Cladding brochure can be viewed online on the following link http://content.yudu.com/A202bp/RoofingCladding/
We are the market leader in providing preformed butyl tape, an integral part of an industrial roofing system. GCA® has a proven track record in long-term service life. Used in both built-up and composite panel systems, when correctly installed butyl helps to make the roof both weather tight and airtight.
In a built-up roof, double-sided butyl is used on the end laps of the liner panel and a single faced Polyband® strip along the side laps. The top sheet, or weather sheet, is sealed along the end laps and side laps with a double-sided butyl tape.
Composite panel roofs are sealed with a double-sided butyl tape along both end laps and side laps. Foam fillers at the ridge and eaves are fixed in place with a thinner tape and this is also used in the production of rooflights.
Butyl tape has further applications around rooflights, gutters and flashings. Some wall cladding designs also call for butyl tape to be applied along the side laps. Roof and wall membranes are also sealed with double-sided butyl.
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Recommended Preformed Butyl Tape
| Metal Liner Sheeting | End Laps | GCA® 3mm x 9mm GCA® 4mm Bead |
| Side Laps | Polyband® 1mm x 50mm | |
| External Metal Sheeting | End & Side laps | GCA® 5mm x 6mm GCA® 6mm Bead GCA® 8mm Bead |
| Composite Panels | End Laps Side Laps |
GCA® 5mm x 6mm GCA® 6mm Bead |
| Rooflights | GCA® 5mm x 6mm GCA® 6mm Bead GCA® 8mm Bead GCA® 4mm x 18mm U |
|
| Metal Gutters | GCA® 3mm x 50mm GCA® 6mm x 50mm |
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| Metal Flashings | GCA® 3mm x 9mm GCA® 5mm x 6mm GCA® 1.5mm x 15mm Shim |
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| Foam Fillers | GCA® 1.5mm x 9mm | |
| Roof & Wall Penetrations | GCA® 3mm x 9mm GCA® 5mm x 6mm GCA® 4mm Bead GCA® 6mm Bead GCA® 8mm Bead |
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| Roof & Wall Membranes | Membrane sealing tape |
Technical Papers
MCRMA Technical Paper No 21, “Aluminium Best Practice Fixing Guide”.
Links
www.mcrma.co.uk
www.nfrc.co.uk
