Bricks, Masonry, Asphalt and Concrete - Expansion joint
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Nichboy
08-06-03, 11:31 AM
I have removed all the 3/4" redwood expansion joint in my driveway, what do you recommend replacing it with. Someone told me to put 1" backer rod and use self leveling urethane. Any other recommendations
chfite
08-08-03, 08:43 AM
From http://www.poolcenter.com/caulking.htm :
"A good caulk job starts with good surface prep. The sides of the joint must be clean, dry, rough and solid. Backer rod foam should be placed in the joint (don't use sand) to give the caulk something to sit on top of. The joint is taped off to keep things neat, and caulk is shot or troweled into the joint to a depth of 3/8-1/2". The caulk should be an elastomeric sealant, suitable for outdoor use. Deck-o-Seal and Vulkem are two popular brand names. Tape is removed before caulk sets. Replace or repair caulking annually if it cracks or pulls away from either side."
HTH
"A good caulk job starts with good surface prep. The sides of the joint must be clean, dry, rough and solid. Backer rod foam should be placed in the joint (don't use sand) to give the caulk something to sit on top of. The joint is taped off to keep things neat, and caulk is shot or troweled into the joint to a depth of 3/8-1/2". The caulk should be an elastomeric sealant, suitable for outdoor use. Deck-o-Seal and Vulkem are two popular brand names. Tape is removed before caulk sets. Replace or repair caulking annually if it cracks or pulls away from either side."
HTH