Type of screw
Looking to do 3 inches of exterior insulation and 3/4 furring strips. Which affordably priced screws should I use? I figure I need 3″+ 3/4″+1 5/8″ totalling 5 3/8″ minimum length. What is the best option for screws to use?
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Replies
I am not messing with you:
Foam screws.
Available from roofing supply houses[ABC roofing for instance
by the bucket, cheap as hell toughest fastener out there
That's to tack the rigid insulation boards temporarily until the 1×4 furring strips are installed. And that is my dilemma. Which screws do I use? Do I use fastenmaster ledger locks or something similar. It's going to hold hardie siding. I can't find deck screws in 5 1/2" to 6". Also fastenmaster are pricey.
Rothoblaas and Heco Topix make a variety of screws that are made for that application. I'm not sure how they compare price-wise. Fastenmaster has a few other "-lok" screws that would also work.
+1 on Gusfhb's suggestion.
Roofing deck screws. You buy them in a pail at any commercial roofing supply. They come in many lengths and are much cheaper than anything else out there.
https://ca.sfs.com/low-slope-fastening/dekfast-fasteners
Thanks akos. I found them and at a good price. I appreciate your help