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The Pitch

On-line roofing tools and apps – the route to smarter roofs

By John Mercer, technical manager at Wienerberger Roof Tiles
fig 1: “5 litres of water will be deposited somewhere if it is not allowed to escape from the roof space”
The Pitch

Roof space ventilation in pitched roofs

By John Mercer, technical manager at Wienerberger Roof Tiles
KoraFlex Plus from Wienerberger
The Pitch

Using lead replacement flashing materials

John Mercer examines the use of lead in pitched roof flashings and asks if it is really necessary
Photo A
The Pitch

Constructing a low pitch watertight roof – Part 2

By John Mercer, technical manager at Wienerberger Roof Tiles
The Pitch

How to construct a watertight low pitch roof – Part 1

By John Mercer, technical director at Wienerberger
Roofing at low pitches (counterbattens fixed to protect nail tape at the top of the rafters and nail tape over the rafters and other fixing points)
The Pitch

Modern roofing at low pitches

By John Mercer, technical manager, Sandtoft
Poor installation and inadequate products can cause condensation in the roof
The Pitch

The functions of pitched roofing underlay

By John Mercer, technical manager, Sandtoft
John Mercer, Sandtoft: “Many products are supplied with guarantees and, of course, this is vitally important, but this does not necessarily ensure that a product is used in the correct way or is appropriate for the particular roof design”
The Pitch

It’s all in the preparation!

How often do you come across the phrase “it’s all in the preparation”, whether it be decorating, baking a cake, or building a shed...
“An innovative way of securing some special ‘Barley Twist’ hip ridges on a recent church re-roof project”
The Pitch

Is heritage and traditional roofing work compatible with BS 5534?

By John Mercer, technical manager, Sandtoft
The Pitch

The pros and cons of using reclaimed roof tiles and slates

By John Mercer, technical manager, Sandtoft
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