The sooner the better as time will be against you if you are trying to remove these stains.
How to keep posters from falling off concrete block wall.
Masonry walls whether built of stone brick or cement all absorb moisture and react to stresses due to their weight and age.
Break the concrete wall into small chunks with your preferred tool and let the debris fall to the ground as you work.
No holes in my poster no sticky residue.
The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line.
I ve already told them that i think they need to have the roof checked i suspect the moisture is coming in from the top but beyond that i m looking to pick people s brains about the best way to approach recoating the exterior.
Clean the wall with rubbing alcohol then peel off the paper backing from the adhesive hook and press in.
The interior paint is getting blown off the walls by moisture and the exterior is peeling in a number of areas.
If you are a student or teacher you may be discouraged after hanging the same poster board 15 times only to find it on the floor the next day.
Dorm rooms and classrooms are well known for having concrete walls that refuse to hold tape when you re trying to hang a poster.
Concrete block walls cinder block walls painted brick walls cement walls concrete wall classroom walls classroom posters school classroom math classroom decorations.
If the concrete block wall is painted and has a relatively smooth not porous finish hanging pictures may be as simple as installing removable adhesive wall hooks.
I think you d need to test your particular walls though.
Damage free adhesive picture hangers come in a range of styles and sizes.
And it just peels off my classroom s paint.
Foundation all concrete block walls must rest on a sturdy foundation of poured concrete.
This will keep your posters from constantly falling off your cement block walls.
You will need to use only clear water to avoid worsening the situation.
How to fix a peeling masonry wall.
Ignore any rebar you come across and just break the concrete free of the metal.
If you use a laminated poster it just peels right off when you want to take it down.
The wall certainly looks unstable and ready to be taken down but a lot of concrete walls can look terrible but still be structurally sound.
Put down a base of making tape.
When inferior or inappropriate.
Depending on the paint i like hot glue.