Frame Roof Valleys Using Battens

Battens are not always used in a roofing system.

Frame roof valleys using battens.

Step 2 install the valley battens. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. Install the valley battens on the sides of the roof that you want to place the valley flashing. The plywood covers the entire roof and is solidly attached to the rafters providing a sturdy base for both insulation and metal roofing panels.

Caution battens or purlins as they are sometimes called must be fastened to the roof joist or trusses with the proper length and number of fasteners to prevent pullout. Roofing battens or battening also called roofing lath are used to provide the fixing point for roofing materials such as shingles or tiles. Fix through the ridge flashing into the roofing batten as shown below using the appropriate cladding screws. Metal roof battens may be used with steel or tile cladding.

Metal roof battens offer extraordinary strength to weight values and are lighter than timber battens. If the batten does not sit flat in the valley cut the battens into shorter lengths to allow for the excess creep. Access the roof using an extension ladder. All joints in battens must meet in the centre of trusses or rafters and not be joined over girder trusses.

The battens are made in approximately 3 0m lengths to allow for cladding creep along the width of the roof. Measure each section of the roof from side to side parallel to the line of the fascia board. Battens should be nailed. Shingles and tiles are affixed using the battens as spacing.

Metal roof battens may also be used with steel or timber support framing. Batten joints should be staggered over the roof so that three consecutive battens nz 2 consecutive battens are not jointed on the same rafter. To minimise cutting lay the battens in one direction starting from one end of the roof. A batten is a roofing component made of a thin layer of metal plastic or wood and is used as a fixing point for roof tiles and roofing sheets.

Fasten the roof sheets to the batten as per the appropriate stratco roofing specifications. For this example a section of roof is 20 feet wide. Hip and valley joints. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.

Metal roof battens will not warp or rot nor are they subject to insect attack. The spacing of the battens depend on the type of roofing material and are applied horizontally. Battens must be installed to support the entire width and length of ridge eave hip valley and gable end trims.