Cadbury

Mastic Asphalt roofing
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	This is the sight that greeted us when asked to quote. Much machinery had been relocated.
	The only direct access to the roof.
	New machinery had also been installed
	A secure working compound was formed to house the skips and scaffold.
	Two waste chutes were employed as the waste generated was segregated into two types.
	We had vehicles on site at initial setup.
	Another view of the roof.
	There were different types of build up of the original roofing. Here we are stripping, high tensile felt, mastic asphalt, insul screed, wood fibre board and polystyrene.
	View looking other way.
	Exposed concrete deck was then primed and a foil lined vapour barrier was installed to maintain water proofing of the roof.
	Section through existing roofing.
	Overview
	We hit a snag when the weather turned warm and had to cut the membrane using petrol powered saws.
	New vapour barrier in the foreground, then exposed concrete deck, then insulation and membrane in the background.
	Looking back at area stripped and vapour barrier installed.
	Huge lorry bodies were required due to the bulk of the scrap insulation. The scrap membranes went into traditional skips.
	New tapered insulation was installed to give a fall and here the first coat of asphalt has been laid on a sheathing felt isolating membrane.
	Laying asphalt in the background.
	Note how gutter is formed in centre of roof.
	Collars are formed around projections.
	Asphalt completed on this section of the roof.
	High performance felt cappings cover walltop and dress down over asphalt upstands.
	White solar reflective paint is applied to protect new coverings.
	Note immediate discolouration of paint due to atmospheric pollution.
	Looking under those new machines! Yes. it was a squeeze.