Nhbc Roofing Battens

Battens and counter battens should be.

Nhbc roofing battens.

These battens were developed in conjunction with the bre and meet nhbc requirements for fully graded roofing battens. Nhbc s registered address is. National house building council is registered in england and wales under company number 320784. For technical advice and support call 01908 747384 or visit www nhbc co uk in this issue.

The main roof underlay should be cut to the valley batten line a strip of underlay should be laid under the main roof underlay and held down by the valley battens where used. Jb red battens from marley is a high quality roofing batten that is pre graded and meets the performance requirements of bs 5534. Wet bedded baby hip ridge tiles to low level roofs such as those over porches and ground floor bay windows do not require mechanical fixing unless recommended by the. Nhbc standards extra issue 29 april 2004.

Nhbc standards 7 2 s11 c states that not more than one in four battens should be joined over one truss or rafter. Nhbc is authorised by the prudential regulation authority and regulated by the financial conduct authority and the prudential regulation authority. This is generally referred to as architectural roofing. Bs 8000 6 code of practice for slating and tiling of roofs and claddings accepts a di erent jointing arrangement where batten gauges are less than 200mm.

Builders book an illustrated guide to building energy efficient homes. Nhbc house davy avenue knowlhill milton keynes bucks mk5 8fp. National house building council is registered in england and wales under company number 320784. Only recently since 1990 s has architectural roofing entered into the mainstream of residential roofing market.

Tiling battens access to roof voids spandrel panels to cold roofs. In today s metal roofing market on new construction or replacement roofing the trend is moving towards the use of standing seam vertical seam or batten seam metal roofing. Nhbc house davy. Battens and counter battens shall be adequately sized and spaced to support the roof covering.

In accordance with bs 5534 accompanied by a delivery note and marked with the supplier origin grade and size. Tiling batten sizes are either 25x38mm or 25x50mm depending on the tile design 19x38mm battens are no longer suitable see appendix 7 2f. Ridge tiles need to be mechanically fixed for at least 900mm from the end and either side of a party wall. Ridge and hip tiles should be mechanically fixed with self sealing non ferrous fixings into timber battens and have a nominal joint thickness of 10mm where wet bedded.

Introducing revised chapter 7 2 pitched roofs page 1 pitched roofs a high proportion of claims page 1 roof mortar page 2 mechanical fixing of ridge and hip tiles page 3 dentil tiles in ridges and hips page 4 interlocking tiles page 4.