Shingles will always look better but you need to wave a flame over the.
How far apart should roofing nails be.
Make sure there is a two inch space between the edge of the roll and the first nail.
For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches.
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.
Run a tape measure from end to end along the rafters of the roof to determine how many purlins will be needed for installation.
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.
The correct nail must be applied 2 5 cm above the cut out and 2 5 cm from each edge.
In this example the section of roof is 20 feet wide and 14.
The inner edges need to be approximately four inches away from the pipe or vent.
Also place a nail 2 inches from each end of the shingle in line with the other two.
Nails of the proper length should penetrate three fourths of an inch into the roof deck.
How to install metal roof purlins.
Lay the first purlin at the ridge.
For the cambridge shingle nails must be applied into the nailing zone.
In all use four nails per 3 tab shingle.
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.
When properly placed the nail will actually catch the top edge of the shingle below it.
It is very problematic to have nails located too high on the shingle.
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.
Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt.
Generally you ll need to place two nails at each location where it makes contact with a roof truss.
However make sure that you do not nail into the tar strip.
They are easy to secure with a single nail at each end of the section.
Defer putting drip edge on angled gable ends until after the felt is laid so the metal.
Snap a chalk line horizontally across the roof two feet down from the top.
Slats were commonly used in early home construction but are not used much today.