I’m planning on painting the inside of a lighthouse from the early 1800s. The walls are solid lime stone held together with mortar. We have a bad mold problem on the walls and steps. I usually have to guys go out and spray it down with a bleach solution ever 4 months or so. Since the walls are so rough I think it would be easiest to spray it with an airless sprayer. I’ve talked to a few paint stores and they are recommending sealing it with a block sealer and then painting it with a mold proof paint. One of the problems I’m having is I cant find anyone that rents a sprayer with the power that I would need to spray the block sealer.
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Any advice on what kind of paint or anything else would be greatly appreciated.
Replies
they tried repainting an abandoned lighthouse here about twenty years ago
lot's of pigeon guano
two of the painters came down with life threatening respiratory deseases... one wa in a hospital for a year
that contract was abandoned
about five years ago they started over, this time with all the precautions, and suuccessfully restored it
I'm not an expert just my opinion.
Have heard that lime is very resistant to mold bacteria etc..
Maybe look into a lime wash.
It's cheep easy and attractive.
Problem #1 - Bleach is ineffective at killing mold - that's part of the problem. It keeps coming back because the bleach isn't getting it all.
For more look here - http://www.traskresearch.com Careful with spray application of this product.
Problem #2 - You need to prime with a high-performance, salt-resistant, alkali-based primer. My guess is that if you did a ph test you would find it off the charts (high). Use this: http://www.sherlink.com/sher-link/ImgServ?id=datapages/loxon_acrylic_primer_108-11.pdf
Top coat with latex for masonry.
Jeff
Edited 3/5/2008 1:36 am ET by Jeff_Clarke