The area around the edge of a roof requires extra fixings to stop it lifting, but how much of the total roof area needs these extra fixings?
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Roof bracing is one element in a continuum that provides resistance to horizontal loads. It works with the wall and foundation bracing to supply a total bracing package for a building.
Installing insulation retrospectively can be costly and difficult but it greatly reduces heating costs and improves home comfort. Retrofitting roof space insulation is usually the simplest, most effective option and is fully justified by the cost savings.
The roof is usually the first thing to fail when a building is damaged in a severe storm. This risk can be minimised by making sure there are good structural connections.
For most skillion roofs the amount of air movement in the roof cavity, although limited, is sufficient to remove small amounts of vapour. The trick is to keep those amounts of water vapour small.
Dormer roof junctions with profiled metal roofing always present a tricky area of flashing and their detailing is often conveniently overlooked by designers.
Here’s a simple way to make your ridge junctions neat and tidy.
Pitched roofs constructed with timber rafters are described in NZS 3604:2011 Timber-framed buildings as either couple-close or skillion roofs. What are the rafter fixing requirements?
Reverse-slope eaves are the ‘in’ feature of many current building designs. However, many of the details used may not effectively deal with the way water will impact on the completed construction.
Underlay is an essential part of roofing installation, but there still appears to be some uncertainty about its use and installation.