What Are Roof Battens?

 Roof battens are lengths of wood that are fixed along the trusses of a roofing building to form a bridgehead on which roof penstocks can be dangled. As well as furnishing a robust anchorperson point for the clinching of slates and penstocks, battens can also help to compound ventilation and rainfall defiance, reduce ice damming, and indeed reduce enthusiasm loss and gain. Sustained roofs are similarly easier to conserve and are able of opposing harsh winds without faltering. 

 How to Calculate Batten Spacing for Roof Penstocks 

There’s no interrogative that working out the accurate roof batten distance is a critically earth-shattering step, whether you’re erecting a metal roof on a new figure, or finishing off a refurbishment design by tiling the roof. 

 The stretch between roof battens is frequently appertained to as the batten hand. beneath, we ’re going to talk you through a simple and practical system for ciphering the correct roof batten distance for your tiled roof. 

 Start by demonstrating the position for the metal roofing batten at the eaves (the smallest point on the roof). Lay a sample pipe (not fixed) so that the nethermost edge protuberances the fascia and gelling by the quantum suggested in the manufacturer’s guidelines. The nethermost edge of the pipe should stop just short of the gutter centre. 

 Measure the expansion of the pipe and note this down. Also, measure the pipe nib (from the cap of the pipe down to the bottom of the nib), and allow this dimension down too. 

 Abate the length of the nib and the breadth of the protuberance from the total breadth of the pipe. This will give you the accurate lead between the first and alternate batten, which you can anymore fix in place. 

 Position a batten exactly below the crest (the top of the roof) and lay another sample pipe onto it. Make sure that the batten is placed so that the crest penstocks will lap the top methodology of roof penstocks by around 75 mm. Once you’re happy that this is exact, fix the batten into place. 

 Measure from the top of the smallest batten to the top of the loftiest batten, also divide this composition by the maximum hand commended by the manufacturer, and round this up to the nearest whole composition. This will tell you how numerous courses are demanded to pipe your roof. 

 Divide the distance between the top and nethermost battens by the number of courses. This will give you the batten distance for your roof, or its batten hand. 

 Illustration 

400 mm ( length of pipe)-75 mm ( protuberance) – 25 mm ( nib) = 300 mm ( distance to coming batten) 

 After measuring, the distance from the top of the bottom batten to top of top batten is 5200 mm. 

 5200 mm ( lead from underbelly to top) ÷ 330 mm ( maximum pipe hand) = 7 mm rounded up to 16 mm 

 5200 mm ( lead from underbelly to top) ÷ 16 mm ( number of pipe rows) = 325 mm 

 Thus, the batten distance for this roof should be 325 mm. 

 How Numerous Metres of Battens are Demanded? 

 To insure you have enough battens to cover the square meterage of your roof, you’ll also need to calculate the total length of batten material needed. You can do so by following this easy system 

 Measure the extent of the eaves for each section of the roof. observe these measures downward independently but don't add them together. 

 Multiply the composition of rows in each section of the roof by the length of the eaves for that specific section. This will carry you the total length of battens demanded for each side of the roof. We recommend unyoking up your notes to make this step lightly. 

 To reckon the complete expansion of batten material needed for the focused roof building, adjoin together the lengths of the battens demanded for each section. We suggest adding on many redundant lengths of batten to accommodate any implicit damage or miscalculations. 

 Still, convert the dimension to metres, If you have measured in bases. 

 Illustration 

 I'm gauging a average two-sided roof structure. Each side has an eaves length of 7m (7000 mm) with 15 rows of penstocks. 

7m (eaves length) x 15 ( pipe rows) = 105m (as both eaves are equal, this is the same computation for both sides)

.105 m ( roof side 1) 105m ( roof side 2) = 210m 

 For my roof structure, I would need 210 metres of batten material in total (not including redundant for damages/ miscalculations). 

How to Calculate Batten Spacing for Other Kinds of Roof 

 Roof Batten Spacing for Slates 

 Calculating the batten distance for roof slates is thankfully relatively easy. Simply apply the formula below 

 expansion of Slate – Headlap/ 2 = Batten Spacing for Slates. Metal roofing colors.

 Bitten Spacing for Cedar Shingles 

 The batten distance for cedar shingles should be the average batten hand plus half the consistence of your battens. For a 45 ° roof, the batten distance would thus be 137 mm. 

 Batten Spacing for Rosemary Roof Tiles 

 The minimum batten distance for rosemary roof penstocks is 88 mm, with the maximum distance being 115 mm for a 90 ° roof. 

Batten Spacing for Plain Tiles 

 When using plain penstocks, battens should be fixed to rafters no further than 600 mm piecemeal, and should gauge across at least 3 rafters. We ’d advise using forest battens that are at least1.2 m long. For batten needles over 200 mm, no further than one in four courses of battens should abut over a stilt. 

 Batten Spacing for Marley Modern Tiles 

The maximum batten hand commended for Marley Modern Tiles is 345 mm. 

 Redland 49 Batten Spacing 

 For Redland 49 roof penstocks, we’d advise batten distance between 257 mm and 307 mm, depending upon the pitch of your roof. 

 Batten Spacing for existent Roof Penstocks 

 Just like plain penstocks, concrete roof penstocks should have a batten distance of 600 mmmaximum.However, insure that only one in four batten courses joins over a stilt, If your batten hand is over 200 mm. 

Batten Spacing for Corrugated Roof 

 When installing a corrugated essence roof, battens (or purlins) should be spaced no further than1.2 m from one another for essence roofing wastes that are0.7 mm thick, and 1m for0.5 mm thick wastes. 

 Batten Spacing for Polycarbonate Roofing 

 Utmost polycarbonate roofing systems will likewise bear battens or purlins to support the wastes. We ’d advise purlin distance between 800 mm and 1000 mm for corrugated polycarbonate roof wastes. 

 Counter Batten Spacing 

 Counter battens should breathe baptized with the same distance as the joists in your roof, which is generally no further than 4000 mm.