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#11
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Drywall screws to hold strip planking
Wayne.B wrote: On Mon, 03 May 2004 22:28:47 -0400, Glenn Ashmore wrote: Depends on the size of the project. Staples are OK for a canoe or dinghy but my strips were 1.125" thick. Staples would not have worked. ================================================== ====== With stips that thick, at what point are you able to remove the screws? I pulled them as soon as the planking was finished so I would not grind into the heads while doing the rough fairing. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#12
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Drywall screws to hold strip planking
The black sheetrock screws DO rust, though they won't if you completely
encapsulate them (that would mean from all sides). If you're concerned, you can use galvanized or stainless decking screws. peter wrote: Has anyone ever used drywall screws (the black ones for screwing plasterboard - I think you call it sheetrock in the US- onto metal studs and plastering over) for holding the strips in the right alignment, instead of wooden dowels and/or plywood cleats, or is it a really dumb idea? I mean just for those annoying bits where the new strip won't quite line up over the one in place. The screws don't rust as far as I know and as the whole lot is encapsulated in epoxy afterwards I doubt if they ever would. I've used them for fixing things into wood for years and never noticed any detrimental effect, so I doubt that they would cause an damage to the wood, assuming a pilot hole was drilled first. It's just that they are so cheap and are so easy and quick to screw in. Another Pete |
#13
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Drywall screws to hold strip planking
peter wrote in message . ..
Has anyone ever used drywall screws (the black ones for screwing plasterboard - I think you call it sheetrock in the US- onto metal studs and plastering over) for holding the strips in the right alignment, instead of wooden dowels and/or plywood cleats, or is it a really dumb idea? I mean just for those annoying bits where the new strip won't quite line up over the one in place. The screws don't rust as far as I know and as the whole lot is encapsulated in epoxy afterwards I doubt if they ever would. I've used them for fixing things into wood for years and never noticed any detrimental effect, so I doubt that they would cause an damage to the wood, assuming a pilot hole was drilled first. It's just that they are so cheap and are so easy and quick to screw in. Another Pete If it's not a huge project, you can use the stainless steel version, that is what I do, usually pull em' after, but if I miss or break one off, it does not matter. Another option would be bronze/silicone ring nails and just countersink them and leave them in. Scotty |
#14
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Drywall screws to hold strip planking
Brian Nystrom wrote in message ...
The black sheetrock screws DO rust, though they won't if you completely encapsulate them (that would mean from all sides). Oh yes they will (proved it a few times). If you're concerned, you can use galvanized or stainless decking screws. There is a bugle-head screw (same profile as a drywall screw) used for cement backer board, commonly called by the brand name Durock in America, which is structurally approved as corrosion resistant & commonly installed over steel studs in landlubber construction, using a SS eschutcheon (for Durock), and sometimes for light curtainwall construction. It isn't galvanized and I don't think it's SS (not close at hand to double-check either). It has stood up well in a light marine environment for me, as well as the demands of (hygroscopic) backer board often used in wet/corrosive locations like ceilings over chlorinated swimming pools, tiled chemical treatment rooms, etc. I no longer have the designation at hand, and local tradesmen simply call them "Durock screws." They may only be cadmium-plated (a guess). There are a variety of "sheetrock-like" fasteners unknown to consumer markets, if you find them temptingly easy to use - suggest check with a commercial drywall supplier or a wholesale fastener house. Some have superior drive heads, too, instead of that horrid Phillips affair that is so easy to booger. |
#15
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Drywall screws to hold strip planking
On Mon, 03 May 2004 23:17:03 +0200, peter
wrote: Has anyone ever used drywall screws (the black ones for screwing plasterboard - I think you call it sheetrock in the US- onto metal studs and plastering over) for holding the strips in the right alignment, instead of wooden dowels and/or plywood cleats, or is it a really dumb idea? I mean just for those annoying bits where the new strip won't quite line up over the one in place. The screws don't rust as far as I know and as the whole lot is encapsulated in epoxy afterwards I doubt if they ever would. I've used them for fixing things into wood for years and never noticed any detrimental effect, so I doubt that they would cause an damage to the wood, assuming a pilot hole was drilled first. It's just that they are so cheap and are so easy and quick to screw in. Another Pete Well I'll bow to the weight of opinion here regarding the rust, but I will insist that I have used these screws for joinery projects for nearly 20 years and I have yet to see one fail through rust. I have used them in all situations and the worst rust I have seen is a little surface rust where the screwdriver tips have worn away the sheridising (or whatever it is called) as it slipped. These screws are made to be plastered over. But if you all insist......it's back to the wooden dowels; it's not much more work really.......sigh.............. Another Pete |
#16
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Drywall screws to hold strip planking
"peter" writes: Well I'll bow to the weight of opinion here regarding the rust, but I will insist that I have used these screws for joinery projects for nearly 20 years and I have yet to see one fail through rust. I have used them in all situations and the worst rust I have seen is a little surface rust where the screwdriver tips have worn away the sheridising (or whatever it is called) as it slipped. These screws are made to be plastered over. But if you all insist......it's back to the wooden dowels; it's not much more work If you don't want to bother removing them, there are S/S deck screws available. Try Jamestown Distributors. -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#17
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Drywall screws to hold strip planking
In my opinion, the bum thing about drywall screws is that they break easily.
Going fine ...going fine ...'click'. "Hey? Wonder what that little click noise was? Hey look ...the head of the screw just spins ...damn!" I've switched to square drive deck screws. The good thing about dry wall screws of course is that they are self-starting and have a thin shank that normally does not require predrilling before using. The deck screws that I've been using (see project below ...lots of temporary screws) have a thin shank, are ceramic coated, and the threads are missing on a very short space below the head so the screws are good for pulling two layers together like a clamp. These are leftovers from the last fence project that I did (two years ago ....no rust on the fence so far.) I've dug my last drywall screw out ...no more for me. Brian -- http://www.advantagecomposites.com/tongass -- My 22' Tolman Skiff project http://www.advantagecomposites.com/catalog -- Discounted System Three Resins products .. "Lew Hodgett" wrote in message ink.net... "peter" writes: Well I'll bow to the weight of opinion here regarding the rust, but I will insist that I have used these screws for joinery projects for nearly 20 years and I have yet to see one fail through rust. I have used them in all situations and the worst rust I have seen is a little surface rust where the screwdriver tips have worn away the sheridising (or whatever it is called) as it slipped. These screws are made to be plastered over. But if you all insist......it's back to the wooden dowels; it's not much more work If you don't want to bother removing them, there are S/S deck screws available. Try Jamestown Distributors. -- Lew S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland) Visit: http://home.earthlink.net/~lewhodgett for Pictures |
#18
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Drywall screws to hold strip planking
Glenn Ashmore wrote:
Wayne.B wrote: On Mon, 03 May 2004 22:28:47 -0400, Glenn Ashmore wrote: Depends on the size of the project. Staples are OK for a canoe or dinghy but my strips were 1.125" thick. Staples would not have worked. ================================================== ====== With stips that thick, at what point are you able to remove the screws? I pulled them as soon as the planking was finished so I would not grind into the heads while doing the rough fairing. I recall that there's a company producing plastic nails that can be driven with a nail gun. The idea is that when it comes time to plane or sand the surface, the nails remain in place and are shaped along with the wood. |
#19
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Drywall screws to hold strip planking
Raptors.
Good idea but they only work with one or two high end nailers. Brian Nystrom wrote: I recall that there's a company producing plastic nails that can be driven with a nail gun. The idea is that when it comes time to plane or sand the surface, the nails remain in place and are shaped along with the wood. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#20
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Drywall screws to hold strip planking
"Brian D" wrote in message news:ZQjmc.28871$Ia6.4578039@attbi_s03...
I've dug my last drywall screw out ...no more for me. :-) Same act, different stage. Their high hardness/brittleness is problematic enough, but here in the NE US our rain is often as acid as ph 4, and in a lot of exposed uses they seem to suffer from added corrosion embrittlement (observed but not proven), and also often do waste through enough in a few years to fracture off in acidic woods like our read oak. Seem to be a false economy all the way around, afloat or ashore - YMMV. But then again, I'm the kind of guy who thinks drywall is a dumb, useless material, too (except as a fire barrier). :-) |
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