This strapping is to be used with the Blake Ratchet Chimney Brackets
Tip:
To calculate the length of strapping required calculate the number of bricks around the chimney. A typical brick is between 8.5"-9" in length. Using the greater length, multiply the number of bricks by 9" convert to feet by dividing by 12. Then add 1 foot for good measure.
Phone or email me if you have a large chimney and require more than 5 metres of strapping:
01444 257363 Mon-Sat 8.30am-4.40pm or peter@aerialsuperstore.co.uk
Specification: Strap conforms to 91/155/EEC - Break Load of Strap is 6.13kN EEC
Your Questions Answered:
Will the strap weaken on the corner of the brick considering that there is no need for any corner plates and could the strap damage the brickwork?
The Plastics Department of Sunderland University has extensively tested the strap. Tensile strength tests have concluded that the strength of the strap is maintained when pulled over the corner of a standard house brick. Even when pulled to the destruction the brick showed no signs of damage.
Will the strap degrade with sunlight or weathering?
Extensive testing at the Advanced Materials Research Institute at the Northumbria University has proved that after 9000 hours exposure to salt spray fog, which equates to 15 years in normal sunlight conditions, the strap will maintain 81% of its original state and strength. In the real environment, weather patterns in the UK could extend this figure to more like 20-25 years.
Will I need a special tool?
The only tool required is a reasonable sized pair of pliers to cut the strap to the desired length and to form one end of the strap prior to inserting into the ratchet.
Is it really so quick to fit?
Due to there being no lashing wires to prepare or corner plates to put in place the "Stack Strap" can be fitted in 3-5 minutes. This is a considerable time saving when compared to the traditional lashing and corner plate method. After practice the "Stack Strap" can be fitted in less than3 minutes.
