Dear Home Building Forum,
We have a small issue with our brick facade. After our construction was completed, we cleaned the lower 4-5 rows and the soldier courses to remove grime. This worked well using a spray bottle for one gable. After that, we had to go to a hardware store because the bottle was empty. There, we were recommended 20% hydrochloric acid, as it is more effective and cost-efficient. Although we were hesitant because it is acid, the staff insisted on hydrochloric acid and provided solid reasons. Another customer also joined in and confirmed this advice. The arguments were reasonable and factual. So, we treated the other three sides with hydrochloric acid as well.
The next day, we saw the extent of the damage: the hydraulic lime mortar joints had turned light!
We then went back to the hardware store to clarify the situation. It became an insurance claim, and we are now receiving compensation.
To restore the original condition, the mortar specialist advised us to cut out the joints, clean them, and refill them. However, our builder and others advised against this approach, as it could damage the bricks. So, we tried Roxalith and a cream from Remmers. Neither really helped.
Therefore, our question now is whether you know of other products or methods to restore the mortar joints to their original condition.
Thank you very much and best regards,
Dennis
We have a small issue with our brick facade. After our construction was completed, we cleaned the lower 4-5 rows and the soldier courses to remove grime. This worked well using a spray bottle for one gable. After that, we had to go to a hardware store because the bottle was empty. There, we were recommended 20% hydrochloric acid, as it is more effective and cost-efficient. Although we were hesitant because it is acid, the staff insisted on hydrochloric acid and provided solid reasons. Another customer also joined in and confirmed this advice. The arguments were reasonable and factual. So, we treated the other three sides with hydrochloric acid as well.
The next day, we saw the extent of the damage: the hydraulic lime mortar joints had turned light!
We then went back to the hardware store to clarify the situation. It became an insurance claim, and we are now receiving compensation.
To restore the original condition, the mortar specialist advised us to cut out the joints, clean them, and refill them. However, our builder and others advised against this approach, as it could damage the bricks. So, we tried Roxalith and a cream from Remmers. Neither really helped.
Therefore, our question now is whether you know of other products or methods to restore the mortar joints to their original condition.
Thank you very much and best regards,
Dennis
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