How to Put on a Metal Roof – A steel roof is long-lasting and withstands inclement weather. It is also recyclable. You can order steel roofing from a metal roofing distributor. You can buy the tools needed to install a steel roof from a hardware or home improvement store. Use these tips to install a steel roof.
- 1 Tips for Installing Metal Roofing
- 2 How to Install a Steel Roof
- 3 How to Put on a Metal Roof
Tips for Installing Metal Roofing
- Make sure the first panel is installed square – all the other panels will follow it.
- On exposed fastener panels: While you don’t have to predrill holes for your screws, predrilling panels will make it easier to get the screw lines straighter. – You can predrill a stack of about 10 panels at a time. – Make sure you measure for predrilling accurately.
- If you pop lines for your screws, make sure to use blue chalk, and NOT RED CHALK. Red chalk is very difficult to get off and can stay on for months, while blue chalk will usually wash off with the next rain.
- If you need to cut panels lengthwise, you can score them with a box cutter several times, and then bend it back and forth until it breaks off, producing a clean edge. You can also use tin snips or the TurboShear Drill Attachment for cutting them.
- Screw your fasteners in straight, and don’t overtighten them. The best way to do this is to set your drill tension, preferably testing it out on a scrap piece of metal or on an area that will be covered over by a ridge cap or other flashing.
- Wear protective rubber coated gloves while working with metal roofing and flashings. This not only protects you from the sharp metal edges, it also gives you a better grip on the metal roofing.
- After you finish installing the metal roofing, make sure to brush off any metal filings / shavings that are on the roof. Otherwise they will cause unsightly rust spots where they rest on the metal roofing.
How to Install a Steel Roof
Measure the roof.
- Use a tape measure to determine the distance between the ridge and eave of the roof.
- Add the amount of desired overhang to that measurement if you want the roofing to hang over the eaves.
- Determine the roof’s width.
- Divide the roof’s width by 3. The result gives you the number of panels that you need. For a roof that is 45 feet (13.7 m) wide, you will need 15 metal panels. Panels come in a width of 3 feet (.91 m) each, but are cut to desired lengths.
Order your steel roofing panels.
Give the roof measurements to a metal roofing distributor when ordering your panels.
Cover the shingles.
This is a good time to add a radiant barrier insulation for energy efficiency or you can cover the roof with 30-pound (13.6-kg) roofing felt to keep moisture away from the roof. Leave the old shingles on the roof.
Use a staple gun or plastic cap nails to secure the insulation or roofing felt .
Lay the batten boards.
Batten boards help to secure the steel panels to the roof.
- Lay 1-by-4-inch (2.5-by-10.2-cm) pine boards over all of the roofing felt. The boards should run parallel with the ridge and the eaves.
- Place the boards 24 inches (61 cm) apart from eave to ridge.
- Use a drill to screw the boards into the roof.
Install the eave flashing.
Eave flashing helps water to flow off of the roof.
- Use a hammer and nails to attach eave flashing to the eaves.
- Install the eave flashing along the roof’s entire width. If the roof has gutters, the eave flashing should cover over each of the gutter’s sides.
Apply closure strips.
Closure strips help close gaps beneath the steel roofing panels where animals and pests may hide.
- Place closure strips onto the eave flashing.
- Place a drop of butyl tape sealant over the closure strip.
Install the first steel roof panel.
Place the first panel along 1 edge of the roof. The bottom end of the panel should hang 3/4 inch (1.9 cm) over the eave.
Screw the panel onto each 1-by-4-inch (2.5-by-10.2-cm) board.
Install the remaining panels.
Lay the second panel along the first panel. The high ridges that run the length of the second panel should overlap the ridges on the first panel.
Secure the second panel by screwing it onto the first panel.
Place the screws into the overlapping ridges. Insert a screw every foot (30.5 cm) from the eave to the ridge. Repeat the process with the rest of the panels. Cover the entire roof.
Install the gable trim.
Gable trim gives the roof’s edges a smooth appearance.
- Apply a thin line of butyl tape sealant along the side edge of the roof.
- Place the gable trim over the side edge of the roof.
- Screw the gable trim into the roof.
- Install gable trim on all edges of the roof.
Install the ridge cap.
The ridge cap helps water to flow off of the roof.
- Apply a thin line of butyl tape sealant along the roof’s ridge.
- Place outside foam closures along the roof’s ridge.
- Apply butyl tape sealant in a thin line along the length of the foam closures.
- Place the ridge cap over the roof.
- Secure the ridge cap on both sides of the peak with evenly spaced screws.
Source : Wikihow
How to Put on a Metal Roof
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