Others will tell you that cap nails are more effective.
Nails or staples for roofing felt.
Staples can be used for tacking it down but not recommended to hold.
Put fasteners at least every 8 inches.
Roll out about 10 feet of felt and fasten with staples or roofing nails with plastic washer heads.
The reason they want you to use felt nails is to prevent blow offs if left exposed or high wind areas.
Many roofers will tell you that staples are fine for installing the synthetic underlayment.
Use a construction stapler or a hammer.
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Although staples are allowed in some jurisdictions they do not provide the same holding power.
When estimating nail or staple usage for your roofing project you should budget 400 nails or staples per square.
Back in the day all i used was staples and or roofing nails now plastic tops are the norm.
Both options often depend on the slope of the roof itself.
However always consult your local building authority for exact code requirements.
Felt staplers are designed for roofing felt housewrap insulation weather stripping light wood assembly and more.
Breaking it down further you ll typically use four fasteners per 3 tab shingle.