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Some 558 m² of the

roof of the nave of the




Church was re-roofed in

more than nine thousand

500 mm x 300 mm Coun-

ty-grade Penrhyn Heather

Blue slates from Welsh

Slate by Mather & Ellis




£160,000 project in a Con-

servation Area had sub-

stantial English Heritage

funding, through the or-

ganisation’s scheme for

repairs to listed places of


Specialist conservation

architects the Bernard

Taylor Partnership specified Welsh Slate, which is

guaranteed for 100 years, but, more frequently,

lasts substantially longer than that, to replace con-

crete roof tiles which had been on the roof for 60


The programme on the roof of the church, which

was built in brickwork in the 1740s on the site of a

medieval church, included stone repairs, new tim-

ber rafters and rainwater goods, and scaffold.

Rob Harrington said:

   “Approval of the slate material was the

key issue in getting the planning and faculty

consents but the scheme was strongly

supported by the local authority as the slate

replaced concrete tiles.

    “The slate represents 90% of the visual

impact of the project. The church stands

high above the town and is a significant

landmark in the surrounding area. The roof

has been transformed by the use of slate.

The rooflines are more strongly defined and

the colour enhances the adjacent brick and

stone materials on the church.”

Quarry reaps benefits from new


In 2013, the company undertook a total overhaul of

the pumping system at its main quarry to increase

production, reduce costs and minimise impact on

the environment.

The company’s largest quarry, Penrhyn at

Bethesda near Bangor in North Wales, the largest

single-site slate quarry in the world as well as the

oldest, dating back some 400 years, had suffered a

series of inefficient and expensive pump systems,

and the latest, installed over a year ago, has been

no exception.

Welsh Slate’s purchasing manager Edward Grif-

fiths enlisted the help of Nottingham-based Pioneer

Pump Solutions.

The previous system used two 2400 high head

90kw submersible pumps and two diesel generators

mounted on two pontoons with four 350-m lengths

of six and eight-inch hose which often leaked.

Running an average 160 hours per week and us-

ing more than 7,000 litres, the fuel costs for Welsh

Slate per year were costing the company almost


Pioneer’s solution was to replace the two sub-

mersible pumps with one 150 clear liquid medium

head 112 kw diesel pump capable of pumping a

minimum 100 litres per second, mounted on a plas-

tic pontoon with one fuel tank and 30 metres of 8”

wire armoured hose, and renovate the existing six

and eight-inch hoses.

With a 68kw decrease in power, the new scheme

reduced the fuel consumption per week to 4,480 li-

tres, the fuel total bill per year by 50% to £150,000.

Welsh Slate

‘Stay Cool’ under


Heat and dust in the working environment are no

longer proving to be problems for Bodens Group, as

the leading wood products’ manufacturer can now

keep cool under pressure.

Bodens has extended its use of Bell technology

with a new L1806E and a used L2606E, which join

the company’s existing L1506E purchased in 2013

at Bodens’ processing centre in Manchester. While

the latter model has been used primarily in sheds,

Page 6

Contractors World UK & Ireland Vol 4 No 4

Out & About