Reminder: Check your roof seals
I have a roof ladder on my TT. The convenience of access motivates me to climb up and look things over fairly regularly - every couple of weeks at home. I usually climb up and check the roof and slide top for leaves, limbs, etc. before we leave a campsite.
I last looked 6/09, giving a quick look at the roof seals. All looked good. I climbed up again on 6/16 after several days of high temps followed by late afternoon storms. I immediately noticed a thin gap around the roof ladder's roof mount, between the rung and the sealant. I checked over the rest of the roof and found a couple of other spots around the bathroom vent. One spot had about a 1" long gap where the sealant meets the rubber roof. In two other places the sealant over the screws had opened leaving tiny holes.
I cleaned the areas with a rag and soapy water, then dried them with a dry cloth and followed with a wipe over of denatured alcohol. Lastly I re-sealed the areas with non-leveling lap sealant. I probably only used about two tablespoons of the product, but I feel better about having found and repaired the potential leak points before they were an issue. If anyone has a good tip for preserving a partially used tube of lap sealant, please let me know!
I can only assume that the sequence of high temps (90's) followed by daily afternoon storms (and rapid cool downs) caused these weak spots in the sealant to separate.
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