Replies

1. 
   jonblakemore | Jan 20, 2006 08:03pm | #1

   After you spray you pass over with a nap roller to give some texture to the finish.

    

   Jon Blakemore

   RappahannockINC.com Fredericksburg, VA

1. 
   razzman | Jan 20, 2006 08:08pm | #3

   Is texture the only reason which seems to present a more cosmetic concern rather than something instrumental in the bonding process?

    

    

    

   'Nemo me impune lacesset'No one will provoke me with impunity

1. 
   CapnMac | Jan 20, 2006 08:35pm | #4

   What Jon said. 

   If the spec calls for "light texture," I'd run the paint a tad "wetter" than normal (thining, passes, admixtures, etc.) and come back with a roller of the desired nap (or, better yet, a helper).

   For some installs, backrolling will also help "cut in" if you are spraying, like down a long, tall, wall, where who ever is driving the sprayer has to climb down, move over, and set up again to do the next patch of wall.  Even feathered deftly (much harder early in the morning & late in the day, or just before lunch . . . <G>), rolling the joint can mean not seeing it.Occupational hazard of my occupation not being around (sorry Bubba)

2. 
   JohnT8 | Jan 20, 2006 11:28pm | #7

   Is texture the only reason which seems to present a more cosmetic concern rather than something instrumental in the bonding process?

   I'm wondering too.  I didn't realize it was for texture.  I thought it was to work the paint in with a roller so it bonded better.jt8

   "The ultimate result of shielding men from the effects of folly, is to fill the world with fools."  -- Herbert Spencer

1. 
   CapnMac | Jan 21, 2006 01:25am | #9

   I thought it was to work the paint in with a roller so it bonded better

   Which is an interesting concept, as the hold idea of using the sprayer is to get a coat of paint properly bonded to the surface being painted.  Maybe I fussed enough with my gear (and only used airless) that I 'knew' how the paint was bonding.

   I also never (typically) had any spare hands idling about on the payroll, either.  Not that I'd set Darryl and his other brother Darrel on such a taks or anything (or might have been quite that smart back when I was younger and knew a lot more about stuff . . . )Occupational hazard of my occupation not being around (sorry Bubba)

2. 
   4Lorn1 | Jan 21, 2006 05:22am | #10

   Re: "I thought it was to work the paint in with a roller so it bonded better."I think you have at least half of it. My understanding is that it is to work the paint in, and around the texture of the wood, to get more complete coverage so that the paint provides a more complete barrier.Without bankrolling it is sometimes easy to find where the texture of the surface and the angle the paint was projected at combined to leave small areas unpainted, and so unsealed. Especially if the surface is rough. Sprayed and viewed from one direction the paint looks like it forms a complete barrier against moisture and fungus. Viewed from the opposite direction and there are obvious gaps in the paint film. Gaps which would allow moisture to penetrate. Rolling after spraying pushes the paint around and down into cracks and gaps. Helping to create a more complete barrier. In the case of finish work it can add a textured effect which is pleasing. In the case of back priming I think it is more about getting complete coverage and an effective barrier.That's my understanding and observation but, as the saying goes, what the hell do I know.

3. 
   Mooney | Jan 23, 2006 07:23pm | #26

    

   Is texture the only reason which seems to present a more cosmetic concern rather than something instrumental in the bonding process?

    

    

   I havent read the thread .

   Back rolling can actually do several things. Texture is a small deal with it .

   Spraying hits surface only what is present at the time it hits hit at the angle its hit. Rolling seals under nail heads and such as small cracks in the siding it self such as T-1-11. Often just spraying telegraphs knots and footballs in the siding. Even rough grain remains unpainted spraying. On old houses with rough siding spraying is only a way to put on the paint which is worth that . Rolling and brushing as back rolling can fill smnall cracks.

   Sometimes the back rolling can provide the second coat that is enough to cover in the double application where one isnt.

   Tim

    

2. 
   DK | Jan 20, 2006 08:07pm | #2

   Back rolling is using a paint roller and or paint brush to smooth out paint to give it the desired finish after paint is dry . Also helps clean up any drips or unevenness is spraying.

   DAN

1. 
   Sailfish | Jan 20, 2006 09:19pm | #5

   oy vey.

   I too wondered it it had to do with bonding-----------------------------------------------------------------------------

    

   WWPD

1. 
   Shacko | Jan 21, 2006 05:49pm | #16

   This has nothing to do with the thread, but what does oy vey mean? Over the years I've never been able to get a definitive answer.

1. 
   Sailfish | Jan 21, 2006 07:26pm | #17

   It jewish,

   literally it means exasperated.

    

   Loosely used by jews who are bothered by everything.

   "That meshugga, oy vey!"

   "Gertrude, there weren't any bargains today at Gimbles! Oy Vey!"-----------------------------------------------------------------------------

    

   WWPD

1. 
   Shacko | Jan 21, 2006 07:38pm | #18

   Thanks.

2. 
   razzman | Jan 21, 2006 11:11pm | #19

   And pronounced it would be...?

    

    

    

   'Nemo me impune lacesset'No one will provoke me with impunity

3. 
   Sailfish | Jan 22, 2006 03:28am | #20

   oy vay-----------------------------------------------------------------------------

    

   WWPD

4. 
   Hackinatit | Jan 23, 2006 06:57pm | #24

   Oh, sh!t.Troy Sprout

   Square, Level & Plumb Renovations

2. 
   CapnMac | Jan 23, 2006 07:07pm | #25

   but what does oy vey mean?

   I do know it's a contraction of oy gevalt, which is an imprecation for attaention of the Deity.  Which, in some ways makes "oy vey" equivalent to "sheesh" or "jeeze"--and with similar connotations to the more, or less, devout.

   'Leastways that's what the folks going to schul (SHOO l) told me.Occupational hazard of my occupation not being around (sorry Bubba)

1. 
   Shacko | Jan 24, 2006 12:22am | #27

   Thanks for the reply I'm learing more every day. Have a good one.

3. 
   Luka | Jan 20, 2006 11:15pm | #6

   >>>>what is backrolling?

   That is what my dog does when she finds a dead possum.

   ---

   Rudeness is the weak man's imitation of strength. ~~ Eric Hoffer

1. 
   CapnMac | Jan 21, 2006 01:21am | #8

   what my dog does when she finds a dead possum

   But only the really good and ripe ones <g>.

   Not much point in being only a "little bit" stinky, not with that much olfactory system to really enjoy it with <g> . . . 

   That's part of why many dogs don't like vacuum cleaners.  Not only are they making a dreadfull racket right up in the canine aural range; they are actively mixing "smells" that were segregated.  So, the poor dog's nose is "telling" him the floor is flying around the house, mixing with over by the couch, and down the hall; all mixed in with oil & ozone from the motor.  Must "look" like a Dali painting in an olfactory sense.Occupational hazard of my occupation not being around (sorry Bubba)

1. 
   Luka | Jan 21, 2006 08:33am | #14

   What a great description.Paints a well deserved more complex picture of the life, (and senses), of a dog.
   Rudeness is the weak man's imitation of strength. ~~ Eric Hoffer

1. 
   jdarylh1 | Jan 21, 2006 01:42pm | #15

   Is spraying, then backrolling any quicker than just rolling? Could 1 person spraying and another following with a roller, cover significantly more area in an hour than 2 people who were just rolling?

1. 
   HeavyDuty | Jan 22, 2006 06:54am | #21

   Definitely.

2. 
   CapnMac | Jan 23, 2006 06:48pm | #23

   well deserved more complex picture of the life, (and senses), of a dog

   One could postulate that appreciating other living things' senses helps a person appreciate their (and other's) own.

   It's a tad mind boggling to imagine what it would be like to sense 14+ more smells, and with alomst 2 orders of magnitude more sensitivity, than the average human.Occupational hazard of my occupation not being around (sorry Bubba)

4. 
   Matt | Jan 21, 2006 05:28am | #11

   Not sure if this was mentioned but another thing backrooling does is create a finish that can be touched up.  Often, a sprayed surface is so smooth, that there is no way to touch it up without sparying it again.  If it is backrooled, depending on the paint, you can do spot touch-up with a roller. 

1. 
   Sailfish | Jan 21, 2006 05:40am | #12

   Good stuff, it appears I will be backrolling

    

   I am pre-painting approx 200 boards of my siding in the evenings with a roller.(i have lots of free time ;)

   I plan on spraying the others that are easier accessible. If I want all the finsihes to look the same I guess this is the way to go.

    

   Great stuff everyone once again!!-----------------------------------------------------------------------------

    

   WWPD

1. 
   Matt | Jan 21, 2006 06:01am | #13

   You might want to back-prime the backs as well as back-rool the fronts :-). ...Depending on what type of siding it is.

5. 
   HeavyDuty | Jan 22, 2006 06:57am | #22

   Lorn the electrician knows painting. He had it right on.

   That's especially true for siding that has an embossed pattern or in the case of natural wood a rough sawn surface.