This is a really simple procedure but quite often it is done incorrectly.
How to put up corrugated metal roofing.
If yours do not then you will need to drill holes.
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.
In this video i m installing some metal roofing over an existing ash fault shingled roof.
If you mess this up your roof will leak so taking the time to correctly fasten the screws is exceptionally important.
Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed.
How to fasten screws on a metal roof avoid improperly tightened metal roofing screws or fasteners.
Place the first screw.
Pre drill holes on the ridges.
It is important to drive or install the screws correctly.
Installing corrugated roofing 1.
Without getting up on the roof itself you can get the measurements simply by measuring the.
Install the roofing screws vertically along each rib in the panel.
Drive a pair of 8d nails through the wood.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.
Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once.
Step 2 install a wood support structure for your panels screwing a row of 2 by 4s running parallel to your wall every 2 feet along the underside of your deck.
This is not a complete install only basic install on a bungalow i.
Remove the old roofing.
Allow for a minimum of 18.
Depending on the area of the roof you can use different sized panels.
Once the first sheet is in place you need to install the remainder of the lowest row of corrugated metal roofing.
For a house roof the recommended minimum slope is 2 5 vertical inches for every horizontal foot but a nearly flat roof is fine for under deck installations.
Some panels have pre drilled holes.
You can either buy.
Lay the remainder of the row.
Buy the metal panels.
Corrugated metal roof installation instructions step 1.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.