is that in stock yet Andy?
as Ian says, we'll be needing an order from you for a couple of weeks time please.
Solar King - sod MCS, we'll still be installing hanger bolts on sarking board - they seem completely clueless about the fact that all Scottish roofs have sarking board on them, and unless it's counter battened there's often no chance of finding the rafter from above to mount their preferred brackets and flashing solutions to the rafters.
I still genuinely believe that hanger bolts installed by competent installers are the best solution for most retrofit slate and yorkshire stone roofs, and we will still use the best solution for each situation regardless of MCS 'guidance'.
We've been visiting old slate installs using hanger bolts and have yet to find any evidence of problems at all.
We now give customers the choice, explain the pros and cons of both options, explain MCS position and ours, and let the customer chose - most retrofit clients so far have chosen hanger bolts, listed building officers also prefer them as they minimise the disturbance to the slates, and allow for the original roof to be reinstated if the panels are removed simply via small patches of lead flashing behind the small holes in the slates.
On the other hand, I have seen a terrible job done by another company on a new build using hanger bolts where they've missed the 38mm trusses, split trusses etc etc (for the record, I'd not be using the bolts on anything under 50mm,at least not directly, would need noggins).
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We're using these flashing kits on a new build slate roof with 38mm trusses, makes more sense on new build if we can work with the slaters to install at the same time as they fit the slates.