![]() Note that this particular timber is kiln-dried certified to comply with the criteria of strength grade C16. This is because it is the most cost-effective internal structural timber. It’s also typically chosen as the standard timber for roof extensions or joist refurbishment. These still comply with BS5534.Ģ5mm x 38mm Blue Treated Roofing Batten - per Linear MetreĢ5mm x 50mm Blue Treated Timber Roofing Batten - per Linear MetreĢ5mm x 50mm Treated Counter Batten - Price per Linear MetreĢ5mm x 50mm Red Treated Premium Sawn Timber Batten - 4.8mĢ5mm x 50mm Red Treated Roofing Batten BS 5534 - 4.8m (Bundle of 10)Ĭ16 timber is commonly used in floors and roof joists in internal building work. Additionally, you may be provided blue or red batten because of material shortages. If you order the total linear meterage required, the timber will be provided in lengths available. So the length of roof battens, in particular, can typically be as short or as long as required. This is because many are locally sourced. Timber roof battens, when it comes to sizes, can vary. Below you can find a list of battens and their sizes to guide you through your search for the ideal products. ![]() Roof batten sizes can be difficult to understand without knowing what each measurement can typically mean. Help & Advice > Product Guides > Pitched Roofing VELUX Sloping & Vertical Combination Windows.Other metals and materials may be incompatible also so keep this in mind when choosing your battens.Īnd you can always call on the helpful experts at No.1 Roofing and Building Supplies when you need some reliable advice. It’s important that you avoid contact between metal roof battens and copper.Ĭopper may be present in hot water overflow piping or downpipes and even the water flowing from this copper could cause serious corrosion issues for your metal roof battens or roof cladding. Most steel battens have a convenient groove on the bottom flange to make inserting screws a simple non-slip process. When attaching metal roof battens to the supports pairs of screws should be in line with each other and the supporting rafter. M5.5 x 40mm batten zips are usually the minimum fixing size for attaching steel roofing battens to steel beams and supports. This is extremely important because using the wrong fasteners may lead to roof failure.įor example it might appear that using 75mm nails to attach a 35mm batten to a rafter would be sufficient.īut according to the table in AS 1684.2-2010 this is insufficient for battens at 900mm centres in a N1 wind speed area.Īvoid any contact between CCA treated timber and steel roofing as this can lead to discolouration and may void the warranty.Ī 12 x 40mm timber fixing screw through each flange is the minimum fixing size for fixing steel battens to timber. Plan your batten layout so that joined battens are staggered across the roof. When joins are necessary in timber battens ensure that the join meets over a rafter or truss. Specific tie-downs may be required for attaching battens to support structures in high wind areas.įixing timber battens to timber supports: Your choice here will depend on your roof design and choice of roofing materials as well as what you’re trying to achieve.įor example if you have a roof cavity where you can install thermal insulation then your main focus for using foil backed blanket type products will be to reduce condensation and create a vapour barrier under the roof. There is a wide range of insulation blankets and reflective type sarking available for metal roofing. If you’re laying tiles you’ll probably need to lay sarking or underlay on the roof with the reflective side facing down before you attach your battens.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |