Place nails in the three tab shingles about 3 4 inch 1 8 centimeters above the cutouts near where the tab meets the upper part of the shingle.
How far apart should roofing nails be.
The inner edges need to be approximately four inches away from the pipe or vent.
The correct nail must be applied 2 5 cm above the cut out and 2 5 cm from each edge.
Shed felt is generally s te hence the need for nails every 50mm it stops the wind getting under it and ripping it off.
The length of each nail must be a minimum of 1 inches long and for roof overs atlas recommends a nail length of at least 2 inches.
Lay the first purlin at the ridge.
They are easy to secure with a single nail at each end of the section.
However make sure that you do not nail into the tar strip.
Snap a chalk line horizontally across the roof two feet down from the top.
Generally you ll need to place two nails at each location where it makes contact with a roof truss.
When properly placed the nail will actually catch the top edge of the shingle below it.
Run a tape measure from end to end along the rafters of the roof to determine how many purlins will be needed for installation.
In all use four nails per 3 tab shingle.
Make sure there is a two inch space between the edge of the roll and the first nail.
Measure the section of the roof from the fascia to the peak and divide this by two which is the two foot spacing of the wood nailers.
Shingles will always look better but you need to wave a flame over the.
It is very problematic to have nails located too high on the shingle.
Defer putting drip edge on angled gable ends until after the felt is laid so the metal.
How to install metal roof purlins.
In this example the section of roof is 20 feet wide and 14.
Slats were commonly used in early home construction but are not used much today.
Measure from roof to peak using chalk make marks where the line of each rafter intersects from the lower end of the roof right up to its peak.
A typical slat length can run from 12 to 16 feet.
Also place a nail 2 inches from each end of the shingle in line with the other two.
For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches.
Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt.