Here’s how Add to the existing wall
STEP 1 Demolish existing lattice fence and gate. Clean brick fence using a pressure washer.
STEP 2 Construct frames to support screen along existing brick fence. Make overall height of frame 410mm and space studs evenly along fence, not exceeding 700mm apart. Screw together using 100mm batten screws.
STEP 3 Paint frames with black exterior acrylic. (Will make fence stand out when completed.) Paint brick fence with Nile Clay using a long nap roller (best for painting rough surfaces). Apply 2 coats, allowing to dry after each coat.
STEP 4 Place frame on top of brick fence 100mm from front edge. On bottom plate of frame, mark positions for masonry screws. Put a screw towards each end of frame and 1 in each gap between frame studs. Make sure screws will go through the centre of a brick. So you don’t blunt your drill bit, lift frame off bricks to drill 10mm holes at each position.
STEP 5 Place frame back on fence. Through each hole in frame, mark bricks below using drill fitted with a 10mm masonry bit. Remove frame and drill holes in bricks for masonry screws.
STEP 6 Reposition frame. Attach to bricks using 100mm masonry screws with ratchet and socket.
STEP 7 Where frames join, screw together with 65mm wood screws.
STEP 8 On ends of fence, measure 100mm up from bricks and mark frames. Use a chalkline to join these points and flick to mark studs between.
STEP 9 Position first board against frame so top edge meets chalked line. At end of fence, make end of board 10mm from edge of frame so shadow line created by capping at the top of the frame will be maintained.