How To Repair Horizontal Cedar Siding

How to Replace and Repair Wood Siding

Refresh your house'south exterior by replacing damaged siding

Family Handyman

Has some of your siding begun to rot while the rest is still expert? Don't replace all the boards. Follow these easy steps and just replace the boards that are rotted.

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Evaluate the boards

Determine which boards need replacing and where to make your cuts. Stagger butt joints if yous're replacing multiple courses. Use a square to marker the cutting lines, centered on a stud. The nailheads on existing siding will indicate stud positions.

Cut the nails

Cut the nails at the bottom of the row above the boards yous're replacing. Utilise a small hacksaw with a sharp blade. Cutting the nails will permit yous remove rotted boards without damaging those your'e saving. To get at the nails, carefully wedge out the bottom of the siding 1/8 to 3/16 in. with wooden shims.

Make the first cut with a round saw

Cut out bad sections with a circular saw or fifty-fifty a sharp utility knife. Be sure to stagger the joints (see Photo 1). Nigh hardboard siding is 7/16 in. thick, so set your blade depth advisedly to avoid cutting into other courses. Utilize shims to elevator the boards so you lot can easily go at the one you're cut.

Finish the cutting with a precipitous utility knife

Yous won't be able to complete the cuts with the round saw, so finish the cuts with a sharp utility knife or a keyhole saw.

Pry off the rotted boards

To learn how to repair woods siding, remove rotted boards with a flat pry bar. Protect sound siding with a chip slice of ane/iv-in. plywood. After yous remove the rotted courses, utilize a small hacksaw to cut any protruding boom shanks, or if you have a very strong grip, utilize a skilful pair of wire cutters.

Install the new boards

When you replace the boards, use a homemade "reveal set" jig to match the reveal of the existing siding. The courses should overlap by at to the lowest degree i in. Supervene upon siding by working from the lesser upwards (you might need a helper here). Attach the siding with 10d galvanized box nails driven into the overlap at to the lowest degree 1/2 in. above the lesser edge. If you have insulated sheathing, predrill the nail holes to avoid crushing the insulation.

How to Repair Wood Siding

When hardboard siding is installed and maintained correctly, information technology can hold upwards for 30 or xl years. Just without proper attending, isolated areas can begin rotting in only a few years, especially well-nigh the foundation. Water splashes upwards from the ground, frequently soaking the vulnerable lesser edges. The paper face and then flakes off, exposing the dark brown inner layers, and each soaking accelerates the rotting.

Replacing these rotted areas takes only a few basic tools and a few materials, simply it can make a huge improvement in your home's appearance. Hardboard siding doesn't toll that much, so information technology's often worth information technology to replace an unabridged course. Doing this helps you lot avoid unnecessary barrel joints.

Make your repair concluding

• Painting wood siding helps it last. Prime the back and edges of the new siding. Thoroughly paint all exposed edges and grooves.
• Do not drive the nails flush or countersink them. The heads volition break the newspaper face, allowing h2o to soak in and deteriorate the siding. Caulk whatsoever nailheads that break the paper face.
• Exit a 1/8-in. gap at corner and butt joints. Seal these joints with a 35-year, paintable acrylic caulk.
• Prevent water from splashing on the siding by installing gutters or repairing leaky ones. Likewise, adjust backyard sprinklers so they don't striking the siding.
• Where siding meets a roof, information technology volition rot if the siding touches the shingles. When you supplant these boards, make sure you have proficient flashing along the joint. Install the new siding so in that location'south a 1-in. gap between siding and shingles.
• Consider replacing rotted areas with fiber-cement siding. It's ane/viii in. thinner than most hardboard, but information technology works in many cases, has a comparable cost, is highly rot resistant, and carries a 50-twelvemonth warranty. For help finding a dealer in your area, telephone call James Hardie Products (888-542-7343 or jameshardie.com) or ABTco (800-265-9829 or abtco.com).

Required Tools for this Projection

Have the necessary tools for this DIY project lined upwardly before you lot start—you'll save time and frustration.

Required Materials for this Projection

Avert terminal-minute shopping trips by having all your materials ready ahead of time. Here'south a list.

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