Spacing for battens

Traditional batten spacing was dictated by the width of the boards being used. If the boards were 12-inches wide, then that was the batten spacing. If the boards were 8-inches wide, then the battens were installed 8 inches apart. The closer together you space the battens, the more dimensional and textured the installation becomes Perfect Board and Batten Spacing Tutorial Measure As You Install Version (If you want to measure the spacing as you install each individual batter follow these instructions) A. Measure the length of the wall. B. Decide how many battens you would like on that wall (this is the general spacing do you want them every 2 feet, every foot)

What You Need to Know About Board and Batten Spacing

  1. The correct batten spacing is necessary because it corresponds to the gauge and head lap of the roof covering being installed. This is important because the correct gauge and head lap has a direct influence on a tile's ability to withstand the ingress of rainwater through capillary - ensuring that the roof remains watertight
  2. To create the board and batten look, we would need to divide the main wall into equal spaced segments using the vertical battens. We decided that 4 boards would be the best size to use for all the battens. And, a helpful thing to know is that a 1 x 4 board is NOT actually 1 by 4. The actual size of the board is about 0.75 x 3.5
  3. If you have exterior board & batten siding with spacing in the 16 or 24 range, I'd be very grateful if you would share a picture of your exterior (and the measurements if you know)
  4. The spacing of the battens depend on the type of roofing material and are applied horizontally. The spacing of the roof battening highly depends on the type of exterior roofing material that is going to be used. For example, metal roofing will be attached to special metal roof battens

Remodelaholic Board and Batten Spacing Tutoria

Batten Spacing and Installation for Roof Tiles Marle

Doing a layout on paper will let you adjust the spacing of the battens for a uniform look. Measure your wall and create a to-scale layout so you'll have a balanced pattern across the wall. This. Batten gauge = (length of slate-headlap)/2. The holing gauge can be calculated as Holing gauge = batten gauge + headlap + 10mm. The most commonly used slate size in Southern England is 500x250mm and 400x250mm in Scotland and the North of England

A great tutorial for DIY Board and Batten. Learn how to install board and batten, how to measure spacing, and how to choose trim! This tall modern board and. In this video we will show you how to space and screw down your Roof Battens Begin by dividing the space by the intended spacing between battens. We were aiming for an eight-inch spacing. 42 divided by eight is a little more than five, meaning there will be sections that are five sections that are roughly eight inches wide. 42-inches divided by those 5 spaces = 8.4-inch spacing, or about 8 ⅜ inches

Mathieson said designers can play with the batten spacing, and incorporate other materials or siding profiles, to create both modern and more traditional looks. For example, if you're thinking about designing a modern farmhouse that uses board and batten siding for the entire façade, Mathieson recommends wider spacing to achieve an elegant. Modern battens evolved from rough coppiced saplings around which thatch could be attached, and it was only with the advent of industrial wood cutting that they started to be produced with straight sides. Because battens support the tiles, the spacing is determined by the size of the tiles and the length of the roof to be covered Batten tie down and size to be designed by others. Rules given in AS4440 must also be followed which include: Do not splice battens on girder trusses. Fix each batten to every lamination of every truss with minimum 2/nails. Adjacent battens should not be spliced in the same point. Not more than 1 in 3 battens to be spliced on any truss top chord

battens are not suitable for use in this area, please contact your local Stramit Office for advice. Step 3 The truss material and spacing should be known. A choice can be made of suitable roof sheeting and thickness if this is not already available. Step 4 In the Table for the particular batten, from the left column 100″ (total wall length) - 24″ (total batten width) = 76″ (wall length minus the battens) 76″ (wall length minus the battens) / 5 (spaces) = 15.2″ (spacing between each batten) If you're doing multiple walls, the spacing will vary slightly on each wall, but it won't be noticeable. Our spacing fluctuated from about 15 1/2.

Batten and joist spacing, 22 mm 2-strip floor boards: Loading categories. Middle battens. First and last battens. Remarks. A+B Residential + offices and light commercial. 800 mm. 550 mm. Only for joists min. 125x125 mm. 600 mm. 500 mm. Standard batten centres. 500 mm. 400 mm . If deflection critirion for wheel load should be complied with. 300. The slate or tile manufacturer or supplier will specify the size of battens to be used, typically this would be 40 x 20mm (1.5 x ¾ inch), but where the horizontal gaps between rafters is large or the slates/tiles are heavy, then bigger battens may be needed Battens should be set out to avoid joints occurring over the same rafter. Where batten spacing is: more than 200mm, no more than one batten in any group of four should be joined over any one truss or rafter 200mm or less, no more than three joints should be made over any 12 consecutive battens

How to Define a Space with Board and Batten » Christene

Yes or No There are three options for a wall that you apply the Board and Batten Siding to. If the sheathing is 3/4 thick you can nail the B&B directly to the wall. If the sheathing is less than 3/4 you can either strap the wall with 1 x 4's or you can install solid blocking for backing in between the studs at the heights the B&B needs to be. The battens don't need any sticking to the floor. They'll be held into place by the screws into the concrete base and also by the screws into them from above (i.e. the ones fixing the OSB into them). However, your idea of something else to provide support for the spans between the stackers is a good one The spacing may also vary across specific areas of the roof where loads are usually higher such as corners and roof edges. Your choice of roof cladding and sheet thickness will also influence the optimal span distances for battens. So Zincalume roof batten spacing may not be the same as Colorbond roof batten spacing Use #12 -14x20mm Hed Head Teks for fixing battens to steel supports and #12 11x40mm Hex Head Batten Zips for fixing to timber supports. 4. Exposed roof battens are not trafficable . Table 2.1 Maximum batten spacing for uplift forces - Corrugated (0.42 BMT) Batten Support - G550/0.75mm BMT (2 x 12-14 Hex. Head Teks per support) `Roof sheet/no Battens also play a part in ensuring the rigidity, durability and weather tightness of the finished roof. BS 5534:2014 is the British Standard that sets out the requirements for roofing battens, and it covers everything from the type and size of timber required, to spacing and fixings

Then, how far apart are battens? Typically, batten are spaced anywhere from 12 to 24 apart.I think it looks best to space them as close to 18 as possible, but that's just a personal preference.. Additionally, how do you measure Batten spacing? Add 1 to your number of spaces to get the number of battens on the wall. Now multiply your batten width by the number of battens 1. Glue the floor with a mastic glue directly to the concrete floor. 2. Install battens or plywood sheeting and secret nail the floor to it. I went for option two, i even have battens (2X1) bought, and intend on renting the secret nailer. I am Confident enough as i have laid a couple (2) floors like this before only that i laid them on top of. To get the spacing as close to 13″ as possible, we needed to add five battens—each batten is 2.5″ wide for a total of 12.5″. Subtract the width of all the battens from the width of the entire wall (58 - 12.5 = 45.5). Then divide that by the number of spaces between battens, which would be four. 45.5 divided by 4 = 11.375″. Close enough Repeat the steps with the vertical trim batten boards. Remember to keep the spacing between trim batten boards the same. Start from the exact middle of the wall and place a vertical batten board. Pick your spacing size (in this project, the spacing is 10 inches) and place your next boards to the left and right of the middle board BUT - measuring just the open section of wall space allowed for more flexibility in spacing. Most of the battens are spaced 12 apart, but on walls with two doors Mark and I adjusted the spacing. So, throughout the room battens range between 11 - 12.5 based on need. This is a minor adjustment that has a big impact in solving spacing

The battens need to be as close to 400mm apart as possible allowing for the fact that you need the end of a plaster lath to fall on the centre of a batten so the next board can share the same batten. You can see more about this on our partition walls project. If the plasterboard lath is 1.22 metres from edge to edge and your first batten is in. Batten HardieTrim Batten lower panel Figure 17 Figure 18 Visit jameshardiepros.com for the most recent version. TR1509_P5/9 04/18 HardieTrim® Boards HORIZONTAL PANEL JOINTS At horizontal panel joints HardieTrim battens must be installed according to option 1 or 2 below. When installing HardieTrim Battens horizontally, they must b The correct amount of spacing depends on the material you are using, but, in general, should be great enough to allow for board movement yet narrow enough to be sufficiently covered with installed battens

Pick your spacing size (in this project, the spacing is 10 inches) and place your next boards to the left and right of the middle board. Now multiply your batten width by the number of battens. Today, it's important to get the spacing and size of boards and battens correct for the installation to go well Clip Batten Profiles are designed for spans of up to 18' 6 without a joint. Wind loadings may vary in different regions. Consult an engineer if unsure about the systems viability for a specific application. Profiles come supplied in any available color in an 18' 6 standard length. EX2P5050B - 2 Part Batten 50x50 (Part B) 2 x Battens should be fixed vertically (either nailed or screwed) on top of the vapour barrier to the structure, the horizontal spacing between the battens should be no more than 60cm (2 ft). A horizontal batten should be fixed just above the bottom line of the cladding to close off the space behind the cladding - this denies entry for pests and.

Installing Board & Batten Siding. Board-and-Batten is a vertical pattern created using cedar boards and battens of various widths for a wide range of appearances. For nominal 6 inch boards spaced ½ inch apart, battens should overlap by a least 1/2 inch. With wider boards, increase batten overlap proportionately. While there are no set widths. PUrlin / Batten SPacing'S Please refer to Table for purlin/batten spacing's. Spacings should be reduced to 750mm maximum end spans in areas exposed to high winds. Overhang at eaves should not exceed 100mm and be less in high wind areas. Endlap at battens or purlins should not exceed 200mm.To reduc Batten spacing for cedar shingles All nails should be ribbe have a minimum of 4mm head and must be long enough to penetrate a minimum of 19mm into the batten. Spacing Shingles should be spaced with a 2mm gap for wet shingles and a 3-4mm gap if shingles are dry but installed in a damp or humid climate

Measure spacing and buy wood according to your design. Cut and install each batten. Caulk all gaps and seams and fill nail holes with wood putty. Sand any high areas. Paint battens a final coat of paint the same color as your walls. (Alternatively, your design could include contrasting battens. It's up to your creative genius!) That's it 1. Spacing of Boards: I had planed on a spacing of about 0.75″ between boards.(Leaving about 7/8″ overlap with boards/battens) Any other considerations to make? Could I go to 1″ spacing or should I consider 0.5″ spacing?) I have seen some installs where boards are nearly butted together with no gap at all. Any purpose to this?) 2 4 ft. length provides spacing on the roof for water drainage; Roof battens may be oriented at right angles to the trusses or rafters or installed parallel to the slope of the roof; Roof battens create a space between the roof deck and the tile to create a thermal barrier and help save energy; Piece dimensions: 1 in. x 2 in. x 4 ft. 12-pieces.

Battens can be used to maintain wire spacing in place of more expensive line posts. Battens may be wood, steel, or fiberglass. Angle groove battens are made to hold the wire in place without clips; straight groove battens require the use of wire clips Tile batten (aka timber roof batten) is a widely available treated timber, commonly used in the roofing trade to support roof tiles. As such it is a bulk product, reliable and cheap. You should be able to phone up your local timber merchant and purchase it in bulk. Slat spacing. Vertical and horizontal slat spacing will determine the look.

• Batten spacing, • Maximum batten span and overhang. Section 9 of AS 1684.2 provides deemed to satisfy provisions for general fixing and tie down details for timber roof battens and rafters. The uplift capacity of the connection in AS 1684.2-2010 Table 9.25 must be greater than the uplift force in Table 9.14 Stramit® Cyclonic Roof Batten 120 29.5 68.9 1.36 1.62 1.62 1.62 15.7 24.0 22.5 78.0 8.84 Stramit® Ceiling Batten 43.2 3.56 16.0 0.34 0.31 0.47 0.47 9.09 18.3 2.54 62.6 0.45 Stramit® WA Ceiling Batten 43.4 4.43 13.3 0.37 0.34 0.43 0.43 10.1 17.5 2.55 60.0 0.50 Section Properties STRAMIT® TOP HATS & BATTENS - EFFECTIVE SECTION PROPERTIE

permits the use of graded roofing battens as a foothold when fixed to rafters set at 600mm spacing. HSG33 makes clear that the batten should be a minimum size of 50mm X 25mm and meet the grading requirements specified in BS 5534 and NFRC Technical Bulletin 33 Graded battens for slating and tiling I decided to put a batten in the corner because it felt more polished that way - then, I did 18″ spacing across the entire wall. My battens naturally managed to avoid hitting outlets or anything else, but if you find that one of your battens will sit in a spot you don't like, simply adjust your spacing until you are happy with how it looks

Measure out your spacing (using that middle school math again) and draw your spacings on the wall. Use pencil for easy clean up. Use Liquid Nails to help adhere the boards to the surface. A Level is your best friend. Use it to double check that your boards are hung straight. Pop one nail in to hold the board in place. Use the level to re-align it Elevating the battens allows free flow for any water . that may get underneath the tiles due to a failed flashing, clogged valley, or broken tile. Standard battens can dam water above the battens which can cause rapid deterioration of the underlayment, battens, fasteners and decking - ultimately causing a roof leak. Elevated Batten System.

Jul 12, 2010. #1. I am building out one wall of the bathroom using 38 x 25mm battens and fixing plasterboard (aquapanel in shower area). I intend to fix the battens at 300mm centres with Spax single thread wood screws 4.5 x 70mm and rawlplugs. Substrate is 12mm render over brick The first and last vertical battens might need to be fitted at an angle to compensate for unlevel walls. 10. Repeat for all other Vertical Battens. Measure plasterboard width. Place the second batten so that the first piece of plasterboard will completely cover the first batten and half of the second It's important to get the spacing of your battens correct. Measure the width of the carport using the front rafter and work out where you will place the battens. They need to be evenly spaced and the correct distance apart for the kind of roof you're attaching. With a pencil, mark on the beam where each of the battens will be secured To minimise cutting, lay all battens in one direction, starting from one end. (Hip valley roofs - lay battens starting from valley.) Batten spacing mm Batten Span (Spacing of Rafters for internal areas (mm) 600 900 1200 600 7.1 4.7 3.6 900 4.7 3.2 2.4 1200 3.6 2.4 1.8 1500 2.8 1.9 1.4 1700 2.5 1.7 1.3 Allowable wind pressure (kaPa) 0.75BMT. As to the potential benefit of battens: they do create a thermal break to help minimize heat transfer from the metal to the roof deck. That is a good thing. However, if you choose a metal roof that is either light in color, or has reflective pigment in the paint, that will be very helpful as well. Your attic ventilation and insulation will also.

How to work out tile and batten spacing in Metric. In this case the remaining roof measured 458.5 cm to the finishing position i.e. the top of the last batten. Having figured out earlier that 33.5 cm was the ideal batten spacing we simply divide the 458.5 by 33.5 to get the figure of 13.68 on the calculator 2x2 Timber Battens (Non-Treated) 100 Linear Feet per Square on Tile & Shingle Plus 110 Linear Feet per Square on Shake n/a 1x4 Counter Battens 60 Linear Feet per Square (Use when roofi ng over irregular existing materials) n/a DECRA Estimating Sheet (With Battens) Project Name: Date

Board & Batten Siding - 16 vs

Positioning the battens: The supplier of the tiles should recommend the spacing up the roof between the battens (known as the 'gauge'), this usually varies according to the size of the tiles, the pitch of the roof and the degree of exposure. The 'gauge' is in fact the same as the 'margin', which is the length of the tile exposed 8.3. Batten Seam Roofing. Description: Batten seam roofing consists of copper pans running parallel to the roof slope, separated by wood battens. The battens are covered with copper caps that are loose locked into adjacent pans. The width of these preformed or field formed pans may vary

Roof Battens, All You Need to Know About Roofing Battens

The spacing requirement of battens is as per Indian Standards IS: 800 [5] which states that the spacing of battens center-to-center of end fastenings shall be such that the slenderness ratio of the lesser main components over that distance shall not greater than 50 or greater tha Batten gauge - Another phrase for batten spacing, this is normally the same as the Gauge mentioned above, but is the distance measured from the top of a batten, to the top of the batten above that. The recommended batten gauge for any slate can be worked out in the same way as the gauge because the top of the slates sit in the same position.


3.2 Counter Battens 3.3 Bellcast Battens/Tilting Batten 3.4 Recommended Batten Sizes and Types 3.5 Batten sizes and Rafter Spacings (mm) 3.5.1 Batten Sizes and Rafter Spacing Table 3.5.2 Metal Battens 3.5.3 Acceptable Batten Nails Table 4.0 Sarking 7 4.1 General 4.2 Bushfire Attack Levels (BAL) 4.3 Typical roofing details requiring sarking: 4.4. You will also need to decide on the width, depth and spacing of each batten, depending on the functionality and desired aesthetic. If you're using timber battens as a screen for aesthetic purposes then you can make the spacing quite wide, but if it's for privacy or acoustics then you'll want to keep them quite close together, Julia. Battens are simply push-clicked onto mounting tracks that are positioned behind the battens in a concealed manner. The tracks are fixed to the substrate prior to clipping on the battens. Batten clips are factory fixed to the tracks at the spacing sequence that is specified STRATCO CEILING BATTENS The Stratco Ceiling Batten is a quality product that benefits from a combination of high strength and rigidity with low weight and cost. It is compatible with all major domestic ceiling boards, which makes the Stratco Ceiling Batten an Batten Mass Maximum Span* Maximum Spacing 0.42 mm 550 MPa 150 g/m2 0.35 kg/m 1200. • Insert the batten into the channel at each end and fit into the clip • Install remainder of clips ensuring that the batten is straight and flat GIB® Rondo® 310 Batten Span Table for Residential Internal Applications GIB® Plasterboard thickness single layer maximum batten spacing (mm) multi span (mm) single span and Garages (mm) 10mm.

Dimensions for board and batten siding - Houz

Add 1 to your number of spaces to get the number of battens on the wall. Now multiply your batten width by the number of battens. Subtract that number from your total wall length. Divide that number by the number of spaces you calculated earlier, and THAT number will be your exact spacing between each batten the calculator will tell you the ideal spacing for your boards. get board spacing. enter height + board type. enter the height (in.) that you want your board & batten wall to be. enter the length of boards you plan to buy. get the number of boards you'll need: enter prices + baseboard & top board measurements What is the maximum spacing between battens? Following Onduline installation instructions is crucial to ensure a longlasting waterproofing. Guarantee depends on local installation guidelines, as they are adapted to the local climatic conditions and local roofing structures I am guessing that you used 19x42mm pine battens - then just add more battens in between the ones you put in. At worst its more plastering to cover up the screw heads at best it wont sag for the next 50 years. just make sure you have 2 battens where the sheets meet and that by adding these extra battens the cornice will be better supported There are many ways to nail board-and-batten siding. Here are four methods to do the job right. Writing to Fine Homebuilding's discussion forum, WenWS is looking for some advice on the best way to finish the board-and-batten siding for his new house. His plans call for 9 1/2-in. boards and 3-in. battens, which he says he'll finish with a high-quality stain

How to install Board and Batten Sidin

( The battens are the vertical strips of wood between the baseboard and rail.) Also, Would you like your actual batten strips to also be narrow or wider? The measurements of the actual batten, rail, and baseboard will make a difference in your particular measurements for the overall spacing. Now determine how far apart you'd like your battens Batten spacing for solar panels. Archive View Return to standard view. last updated - posted 2012-Apr-20, 11:04 am AEST posted 2012-Apr-20, 11:04 am AEST User #185988 8 posts. magicpossum. Forum Regular reference: whrl.pl/Rc9zCP. posted 2012-Apr-16, 11:34 am AEST. The ideal orientation and spacing of battens depends on the roof design and the environmental conditions it must endure. They may be oriented at right angles to the trusses or rafters, or they may.

What to Know about Hardie Board and Batten Siding Installatio

Board and batten is a siding and paneling style that uses narrow strips of wood placed over the joints of wide boards for a geometric, layered effect. Historically and traditionally, a wooden batten would be placed over a seam between the wide boards, creating a stronger and more energy-efficient siding. Because it was inexpensive and easy to. Determining spacing for board and batten is critical for achieving a proportional aesthetic. First, measure the width of your walls and height of your ceiling. Second, draw it out on a piece of paper (to scale). I usually use the scale of 1 = 1 foot when drawing it out to keep the math simple maximum purlin spacing should be 750mm and a minimum radius of 6000mm for Roma and Greca profile and 14000mm for Trimdek profile. For walls, nogging spacings should be no more than 1200mm. Use Laserlite Noise Stop Tape on all battens, purlins or noggings to minimise the noises associated with expansion and contraction Slate guage/batten spacing question. Discussion in 'Roofing and Guttering' started by martyc, 18 Jul 2007. martyc. Joined: 1 Mar 2007 Messages: 467 Thanks Received: 1 Country: Hi there

Determine what you want the spacing to be for your DIY board and batten. Common spacing includes anywhere between 12″ - 20″. For this tutorial, I did 16.5″ between each board. And for our DIY board and batten bathroom (which was a much smaller room) I did 12″ spacing which was a good spacing for the small scale of the room And, keep in mind, for residential applications, I never suggest installations over battens unless there is a solid deck beneath the battens. Installations over battens alone are an invitation to condensation issues. Next, I highly advise the use of a layer of underlayment over the old shingles or decking whether or not battens are used DIY board and batten wall: How to do it. Here's the step-by-step we used to create a board and batten wall. 1. Measure the width of the wall (s) Before you head to the hardware store, measure your walls so you know how much trim to buy. You'll need both board (the horizontal trim pieces) and batten (the vertical trim pieces) For your horizontal. steel sheet roofs, Stratco Ceiling Battens may be ixed intermittently between Stratco Rooing Battens giving a batten spacing no greater than 600mm. Rooing battens are suitable for non-cyclonic conditions up to and including W41 (N3). Refer to Stratco for applications in higher wind conditions. For additional information such as handling

Furring Master Rain Screen | Rain Screen Siding | Rain

The correct batten spacing is necessary because it corresponds to the gauge and head lap of the roof covering being installed. This is important because the correct gauge and head lap has a direct. Use untreated 1×4 furring. Install horizontal furring to allow attachment of vertical siding. Use 1×4 furring. Nail on blocking for rabbeted trim, leaving space for Cor-A-Vent SV-5. Install a continuous strip of Cor-A-Vent SV-5 at top and bottom of the rain screen to prevent bug entry. Attach water table Directions- Preparation. Decide on your batten height and spacing, determine material amounts, and purchase materials. Pencil in your top line for your board and batten using a level. Mark all the studs between the bottom trim and top line. Mark the location of all your battens using a level I chose to use 14″ vertical spacing (based on how high I wanted it on the wall). I wanted to change it up a little with the horizontal spacing, so I used both 14″ and 24″ horizontal spacing. Once I decided on the spacing, I drew in the horizontal members. I used 3.5″ MDF for the top piece and 2.5″ MDF for everything else

Build An Ultra-Inexpensive Energy-Efficient House - An

Centres and Spacing Calculator - Metri

Installing Wood Stripping Under a Tin Roof. Tin roofing, also known as metal roofing, is considered more durable than composition or wood shingles. The roofing is manufactured in panels that. if truss spacing is between 600mm and 900mm, the batten spacing should not exceed 450mm centres; if truss spacing exceeds 900mm and batten spacing exceeds 450mm, other fall protection should be provided in accordance with the hierarchy of controls; ensuring battens are of sufficient strength to support employees undertaking roofing work 6.0 cavIty battens (Refer to E2/AS1 Paragraph Cavity battens may be either timber or polystyrene. The finished thickness of the cavity battens must be between 18 mm and 25 mm, and they must be at least 45 mm wide. timber cavity battens Use radiata cavity battens of merchantable grade that are treated to a minimum of H3.1

A dark board and batten clad home arrives on this streetHow to Install Board and Batten in Small SpacesC Purlin / Rafter Spacing Advice

Batten spacing is normally determined by room size, 450 max for plain 10mm board. I'd use rondo 129 furring channel with j-track wall channels to hold the ends. You can use plasterers angle on the walls parallel to the channels. Cheers pulse. Similar Threads. Metal Roof Battens - spacing 2. Battens & Membranes: John Brash recommends using battens and counter battens with a membrane to allow adequate air flow if necessary. 3. Fixings: John Brash recommends 2 x 31mm x 1.8mm silicon bronze nails per shingle and x 4 44mm x 2.3mm silicon bronze nails for Hip & Ridge capping. 4. Hips & Ridges: To speed up an 1. the clips are to be installed as shown in the berridge batten seam details. 2. clip spacing is typically twenty (20) inches on center.* 3. when installing panels on open framing, if the purlin spacing exceeds 20 inches you must us a clip(s) between the purlins. these intermittent clips are used to keep the snap-on battens held tightly in place Decide the width of your battens (for example 3.5 inches). Divide the length of the wall by general spacing between battens that you want (for example 24 inches). Add 1 batten to determine the number of battens you will need. Subtract the width of battens (combined width of all the battens) from the length of the wall Battens Footing Knee Brace Beam Post Hot dipped galvanised stirrup Ends of rafters and beams shaped to reduce end grain exposure Ledger Rafter Lightweight roo˜ng (max. 10kg/m2) Note: Fascias, gutters, downpipes, etc. may be required. Double diagonal bracing between posts in both directions (a) Typical attached pergola Battens Footing Knee. rafter spacing & batten span Overhang Batten spacing Batten spacing Batten spacing Allowable batten spacing in TOPSPAN 40 Battens Non cyclonic areas 1. The tables are based on a general design approach. The tables will give a practical and economic solution for most domestic buildings in non-cyclonic areas. For specific desig