If end laps are required you should allow 300mm minimum overlap sealed with butyl sealant tape 10mm from the edge of each overlapping sheet as well as in the middle of the overlap.
Overlapping steel roofing lengths.
Lay the remainder of the row.
Sheets are supplied custom cut.
Sheet lengths of up to 24m can be used before an expansion joint is required for roof applications.
On the eave side of the roof aim to overhang the panels by 1 to 1 5 inches.
A special anti capillary forming in the side lap allow you to use custom orb or custom blue orb used on curved surfaces for roof pitches as low as 5 degrees 1 in 12.
Metal roofs though less appealing than shingle or tile is a more fire resistant and heat reflecting roofing option.
This will void your paint system warranty as no.
How to cut metal roofing never use a circular saw or other device that will fling hot metal chips all around the area you cut.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Install the roofing screws vertically along each rib in the panel.
Any end laps must be supported by a suitable purlin.
Once the first sheet is in place you need to install the remainder of the lowest row of corrugated metal roofing.
If you re installing a metal roof on a home without gutters you can overhang the panels by twice that amount.
If your panels aren t layered properly water damage can occur.
The sheets should overlap by at least four inches add a bead of caulk where they overlap and at the other end of the building ensure there s an overhang of two inches.
We recommend about 2.
The most common lengths are 8 10 12 and 16 however many distributors will cut to length.
Make sure the panel is square to the roof line.
The metal roof length calculator calculates the distance from peak to trim so add the length you want the roof metal to extend beyond the eave trim.
The most common widths are 24 and 36 exposed but the actual width of the panel will be larger to accommodate an overlap.
Roofing panels come in many styles and dimensions with different overlap dimensions.
