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About Dan Donavin
(Top Expert on this page)

Expertise
I can answer structural and aesthetic questions about natural and manufactured stone. Whether its out existing, future or current work. I can answer a few questions about brick and block work mostly about mortar issues. I can also answer questions about concrete regular and decorative. I cannot answer many structural questions about brick or block laying but I will try to steer you in the right direction if I cannot answer.

Experience
I am the owner and main installer of a stone and finished works company I started five years ago. We install and repair all types of stone inside and out. We also do brick and concrete repair as well as tuck pointing.

Organizations
Gorgeous Stone Stucco Tile Corp. Concrete Network

Education/Credentials
College of Du Page Concrete Institute

   

You are here:  Experts > Industry > Construction Industry > Masonry/Brick Laying

Questions Answered By Expert  Dan Donavin 
In Category  Masonry/Brick Laying

SubjectDate Asked

block brick construction9/4/2008
  Q: We need a reference to an excellent mason and mold person to assess our damages and discuss ...
  A: Where are you located? Servicemagic.com prescreens contractors and should be able to help you find ...
marble mosaic9/3/2008
  Q: I am tearing out the old 6" quarry tile on my 1953 hearth and replacing it with highly polished ...
  A: If the brick is rough, you can use thinset or a repair mortar like Ardex AM100. If it is smooth, you ...
cultured stone9/3/2008
  Q: Can cultured stone be applied directly over sheet rock? There is so much conflicting information on ...
  A: I like Georgia Pacific's tile backer. It is blue on one side and is the easiest backer I have ever ...
cultured stone9/2/2008
  Q: Can cultured stone be applied directly over sheet rock? There is so much conflicting information on ...
  A: I never would install directly over sheet rock. The easiest way is to screw a hardibacker like ...
installing manufactured stone to exterior wall9/1/2008
  Q: I purchased my manufactured stone and type N mortar mix from a local brick company. Without reading ...
  A: Try tugging on the stones after a few days and see how well they stay. Sand is mostly to add ...
concrete walks8/24/2008
  Q: The concrete walkway between the curb and the front of our church (downtown) is about 60 feet by 24 ...
  A: I know that Quikrete and Ardex both make products to do what you want you can check their sites to ...
Clay paver problem8/24/2008
  Q: I have a clay paver walkway. I just put in polymeric sand for the joints. Unfortunately the clay ...
  A: There is Miracle Cleaners and Sealers work good. You need to check the specs to get the one that ...
faux stone repair8/23/2008
  Q: one of my stones fell off, in order to repair it, should I break of the mortar on the wire mess that ...
  A: I would break off or grind off the mortar on the stone but you can leave the mortar on the wire ...
speed block8/23/2008
  Q: I live in kansas and I am trying to find a source that carries a speed block. My question to you is ...
  A: You may try Midwest block and brick. You can use quikrete fast wall or another surface bond cement ...
brick home with chimney8/22/2008
  Q: I purchased a home that has some sort of a leak on the wall where ceiling and wall meet directly ...
  A: You can try a few different sealers or a paint like drylock over the entire brick of the chimney. If ...
porch slab pitch8/21/2008
  Q: Our porch slab is not allowing rainwater to drain away from the house; the water congregates into a ...
  A: I can see that there are low spots because the water standing in puddles. The other way to tell is ...
cement porch repair8/21/2008
  Q: My front stoop has three corners that have broken off. I would like to repair these what is the best ...
  A: I have never adhered concrete pieces to concrete. For what the epoxy would cost and the trouble of ...
Window brick in.8/21/2008
  Q: I'm in the middle of a remodel and need to brick in a window. I am trying to make the window brick ...
  A: Use a grout bag. They look like big pastry bags sold by brick and stone tools. You will have to ...
cement porch repair8/20/2008
  Q: My front stoop has three corners that have broken off. I would like to repair these what is the best ...
  A: It depends on how big of a repair you are doing. You can clean the area very well then apply a ...
Crack line in a new home8/19/2008
  Q: We are currently building a new home. It is being rocked in a TexasMix stone. The masonry workers ...
  A: I have not done that one my stone work in new construction. I have had cheap and poorly manufactured ...
pavers8/18/2008
  Q: Do I have to coat the pavers used on top of my front entrance steps? How do I remove the dust that ...
  A: If they are natural stone, you do not have to coat them. I would ask the place you bought the ...
pavers8/18/2008
  Q: Do I have to coat the pavers used on top of my front entrance steps? How do I remove the dust that ...
  A: Pavers can be used anywhere you want a hard solid surface and can but a solid base under. Pavers ...
pavers8/17/2008
  Q: Do I have to coat the pavers used on top of my front entrance steps? How do I remove the dust that ...
  A: You can use a clear concrete sealer on them. A hand pump sprayer or other paint sprayer is the ...
porous brickwork and damp8/17/2008
  Q: I have a turn of the century brick built house, C1900. One wall is showing internal wall ...
  A: Usually, the outside row of bricks is the most porous and the bricks should be harder and less ...
pavers8/16/2008
  Q: Do I have to coat the pavers used on top of my front entrance steps? How do I remove the dust that ...
  A: If a wet rag did not work, try a little dish soap and water. Be careful not to use something too ...
Discontinuing a window well8/14/2008
  Q: We have 4 basement window wells. One leaks pretty badly. We had some heavy rain yesterday and the ...
  A: If you are ready for a some work, I have a great solution for you. You need to dig out and lay ...
Structural concrete block support8/8/2008
  Q: I'm building a firepit out of cinder block that includes a hollow box structure that will fit a ...
  A: You can build a form the size and shape you want the roof and pour your concrete in the form and ...
decorative brick wall8/6/2008
  Q: My in-laws live in north Florida. The air conditioners in their sub are all camouflaged by an "open ...
  A: A good brick supply company like Old Castle or Adams Products Company should carry them if you are ...
patio tiles8/4/2008
  Q: Our front entrance patio needs to be re-tiled, primarily because it is allowing rainwater to form a ...
  A: The form is a good idea. On the inside of the form, you can chalk lines for your concrete to have it ...
Mortar for old handmade bricks8/4/2008
  Q: We recently moved a late 1700s log cabin to our property here in NC to preserve it. We had had ...
  A: To be true to NC, you can use a mortar made with crushed sea shells but not really necessary now a ...
masonry blcok wall- retaining wall?8/2/2008
  Q: i just want to let you know how aprreciative I am of your services. It takes a special type of ...
  A: Is this wall connected to anything else or the driveway? If it was a retaining wall built before or ...
ugly exterior7/31/2008
  Q: Dan, We are considering buying a foreclosure in Utah that is very nice inside but has rock and ...
  A: You can paint it or you can acid stain it. Both are time consuming and take some delicate work to ...
curved paver sidewalk7/31/2008
  Q: I am having problems laying pavers for a curved sidewalk. Any suggestions on a starting point or ...
  A: I would start at your highest point and work downhill. You want a little bit of a slope to let water ...
Stone Patio7/30/2008
  Q: I have a natural stone patio that is 8 years old. It is looking dingy. I have power washed it in ...
  A: I would say a pressure washer but it may hurt the grout. You can get what they call an acid brush ...
cement7/24/2008
  Q: How can I fix or fill in the gap between my house and the cement driveway? I have about a half inch ...
  A: If you do do not care if it matches the color exactly you can use a repair mortar it comes premixed ...
Crack in front wall7/23/2008
  Q: I have recently noticed a crack running from the top following the mortar and through 2 facing ...
  A: I am not sure exactly what you are asking. The cracks come from a few different reasons. Incorrect ...
Foundation Block Wall7/21/2008
  Q: I have a problem here. I have a section on my block foundation that I think used to be a stoop that ...
  A: Replacing a few cinder blocks is not to difficult if you are up to some manual labor. You can get a ...
cement mix7/19/2008
  Q: what is the correct mix of sand and cement for laying concrete blocks or bricks i was allways on the ...
  A: I normally use 250 to 280 lbs of sand per 80 lbs of mortar mix. Each brand of mix should have mixing ...
concrete7/17/2008
  Q: Dan, I had just installed about 4yds of concrete in a backyard in (4) 8'x8' sections in(1) section ...
  A: It was good to have it poured in the 8x8 sections to prevent cracking. The peeling could be a few ...
masonry bits7/17/2008
  Q: http://www.dewaltpowertoolsonline.com/Accessories/Percussion-Drill-Bits.html Can these bits in ...
  A: We have drilled through concrete many times without a hammer drill but it was always using a corded ...
Landscape blocks7/16/2008
  Q: Don, My retaining wall of 4"x8"x12"blocks was glued with PL landscape block adhesive. I need to ...
  A: PL says that you may be able to use mineral spirits or a similar adhesive remover to remove small ...
BBQ7/15/2008
  Q: I have a brick BBQ with a built-in gas grill. I would like to add on a counter and bar so that the ...
  A: Yes good idea. If you pull up the pavers in the area, you can start the block or brick right on the ...
concrete sealer7/15/2008
  Q: what type of sealer could I buy for a stamped concrete sidewalk? the company that used to do it ...
  A: Usually, we seal decorative concrete with a clear epoxy that dries to a few thousand psi. ...
BBQ7/15/2008
  Q: I have a brick BBQ with a built-in gas grill. I would like to add on a counter and bar so that the ...
  A: I apologize for forgetting that part. IF the pavers are set in mortar on the concrete, you can pour ...
cutting slate rock7/14/2008
  Q: We are about to install slate rock on our lanscaping as steps. The steps are already formed and ...
  A: I have had trouble with a chipping hammer on certain stones myself. An angle grinder with a diamond ...
shower tile question7/13/2008
  Q: We own a home built in 1961. One of the previous owners installed sheets of formica in a ...
  A: I do not think there is a chemical that would remove it without staining the concrete. If you are ...
Cement work7/11/2008
  Q: I need to build a 36"x"x"36 concrete block in the ground. What size rebar and how should I build the ...
  A: You probably should check your local buildings' codes to see if they have any specific instructions ...
stucco repair7/11/2008
  Q: I have chiseled away at the edge of the old stucco to make a rough edge, overlapped new tar paper ...
  A: If the old stucco is painted or sealed my may want to a bonding agent. You find it in the concrete ...
Paver Brick sand usage7/11/2008
  Q: Dan, I am laying a Clay Paver brick walkway using a "Techni-Seal RG Polymeric Sand" sand that seals ...
  A: The techni seal is designed to be used in the joints after pavers are installed. The polymeric is ...
BBQ7/7/2008
  Q: I have a brick BBQ with a built-in gas grill. I would like to add on a counter and bar so that the ...
  A: You can stone right on top of a rough brick face. A smooth brick made need a coat of adhesive ...
stucco repair7/7/2008
  Q: I have chiseled away at the edge of the old stucco to make a rough edge, overlapped new tar paper ...
  A: You should be able to apply to stucco to the wire mesh. You may need to do two coats on it though. A ...
Texture coating outdoor/cinder block walls7/5/2008
  Q: I am doing some work in my backyard and one of the things I am working on is the wall that surrounds ...
  A: The easiest way to put on stucco is with a rubber float like for grouting tile. Bonsal makes a ...
Fixing, painting? concrete7/4/2008
  Q: We are trying to get my elderly parents' house ready to sell ( obviously can't spend a lot of ...
  A: A concrete floor repair or floor leveling mix should work for cracks. A good Behr concrete paint or ...
concrete coating/stain7/3/2008
  Q: MY CONCRETE POOL DECK IS ABOUT 7 YRS OLD AND IN VERY GOOD CONDITION. I WANT TO SIMPLY CHANGE THE ...
  A: Behr makes a good product and I would definitely recommend a epoxy floor coat. Concretenetwork.com ...
cleaning inside brick wall without acid can it be done?7/3/2008
  Q: dont know who to listen to half my friends tell me clean off mortar film with acid the other half ...
  A: The acid a stiff bristle brush is the easy way to clean it. You may be able to find homeowner ...
Concrete patio7/2/2008
  Q: I am having a patio put in, about 17x15 feet. In one bid, the contractor put that the cement was ...
  A: Pouring over dirt is fine as long as they have tamped and leveled it properly. They should have a ...
Water seepage through block wall7/1/2008
  Q: I have a masonry block wall built with rebar and concrete and the usual foundation. My neighbor's ...
  A: Large amounts of water can make the soil under the footer sink or erode over time. Houses are ...
How do I install raw slate rock7/1/2008
  Q: I harvested some slate rock from a quarry. I have flattened off most of the rough edges. The rock is ...
  A: If you have hardibacker, you do not have to put up mesh and run a scratch coat. You can use a stone ...
garage cinder walls seperating from each other6/30/2008
  Q: The concrete floor is cracked and raised/lower in areas of 3 inches height in places.The cinder ...
  A: It sounds like there was not proper prep work done and a deep enough footer poured. It may be ...
fixing a loose slate piece on porch6/28/2008
  Q: It seems as if water has gotten under the slate and lifted up one piece. How do I go about fixing ...
  A: Thinset is tile adhesive found in the flooring section of a home improvement store. Make sure the ...
New foundation termite spray6/27/2008
  Q: We are building an addition to our house that will involve a new monoslab concrete foundation. We ...
  A: I am sorry I was not clear. For termite protection, after excavation, a termite control company will ...
New foundation termite spray6/27/2008
  Q: We are building an addition to our house that will involve a new monoslab concrete foundation. We ...
  A: You need to call a termite control company and have them come out and spray before the concrete is ...
Deteriorating mortar in fieldstone pillars6/23/2008
  Q: Dan, I have a house, actually it's 1/2 of a twin (house split in half...sort of) about 20 miles ...
  A: The best thing to do is jack and level anything resting on the sinking foundation. Then you can ...
Masonry flashing6/19/2008
  Q: Should my brick mason have applied flashing over the roof climb that lays on the roof where the ...
  A: The house and roof should be sealed from water before the brick mason started. Part of that is the ...
exposed interior brick6/18/2008
  Q: Hey Dan I was just wondering if you know what the best way is to redo an exposed red brick wall. The ...
  A: Are you going to rebrick the wall or are you going to plaster over the wall? If the mortar is soft, ...
Masonry flashing6/16/2008
  Q: Should my brick mason have applied flashing over the roof climb that lays on the roof where the ...
  A: Yes the mason should have flashed it. The windows should also have been prepared and sealed properly ...
Brick Patio problems6/11/2008
  Q: I have a wonderful paver brick patio, the kind that has a sand/gravel base and sand used in the 1/8 ...
  A: The cement base is the best way to go but there is a few other options. You can set them thick in ...
concrete block/cultured brick chimney leak6/9/2008
  Q: I recently had a new chimney installed on our home. It is constructed of new concrete block back ...
  A: The sealant may or may not solve the problem. The issue is that any descent mason knows that block ...
Concrete Slab6/6/2008
  Q: This may not be exactly in your area, but you’re bound to know more than I do. Or maybe someone else ...
  A: You can do it and the wire is a good start. You may have to use something more like a decorative ...
How to lay masonry block on a preexisting garage slab6/4/2008
  Q: We have a garage that has no block foundation. We need to know how to lay a block foundation on a ...
  A: You can run sill seal under the new pressure treated green plates. This a roll of thin blue foam ...
painting textured concrete block6/3/2008
  Q: We are renovating an 80 year old textured block home. The home includes a 20x20 addition that we are ...
  A: You can paint the brick if you want. You can try a exterior paint on everything but test a small ...
How to lay masonry block on a preexisting garage slab6/1/2008
  Q: We have a garage that has no block foundation. We need to know how to lay a block foundation on a ...
  A: The wood cribbing is a good idea but leave it in place for at least two days if it is over 60 ...
Redo brick patio6/1/2008
  Q: My brick patio collects dirt build up and weeds making it very slippery. It's 25 years old and some ...
  A: You can prevent weeds and cracking by digging a 4 inch foundation and compacting 2 inches of gravel ...
zud cleanser5/29/2008
  Q: What retail stores sell Zud cleanser ? need it to get rid of rust on concrete driveway
  A: I take you have checked the local home improvement stores. You can try an Ace Hardware they usually ...
pointing a brick wall5/27/2008
  Q: I have an interior basement wall (stucco on the outside) that looks as if the mason buttered only ...
  A: You can point it if you want to cover it with something later. The blocks and mortar are not ...
Concrete floor repair5/27/2008
  Q: I have a inlaw apartment in my chicago style bungalow (built around 1921) that I use for a rental. I ...
  A: I have taken out the two by fours that were set in concrete and have rotted. We used quikcrete floor ...
overdig needed?5/24/2008
  Q: How are you doing...I've been analyzing that website (Kleinberg Construction) and noticed a section ...
  A: The buried row will the perimeter and be the first two treads. Then you can fill the rest in. You do ...
overdig needed?5/20/2008
  Q: How are you doing...I've been analyzing that website (Kleinberg Construction) and noticed a section ...
  A: Yes that should be okay but be careful of settling. I recommended burying regular blocks a while ...
overdig needed?5/19/2008
  Q: How are you doing...I've been analyzing that website (Kleinberg Construction) and noticed a section ...
  A: You can do the 40 or 20 inches if you wants. I do so much new construction that I have to remember ...
concrete block wall5/18/2008
  Q: we had our home waterproofed and put new drain tiles ect. Now I want to refinish the interior bock ...
  A: It will be harder without chemicals but will be more pleasant to live in while you are working on ...
what should be first??5/17/2008
  Q: I have the tranches for the low-lying (maybe four course) privacy/decorative walls. They are about ...
  A: Run the rebar into the ground and let them stick as long as they are. Measure and place them to go ...
drainage weirdness5/17/2008
  Q: Well hello there! I said I wouldn't ask about the steps anymore...haha...I didn't say anything ...
  A: Yes you can use them. Only place them where they will be seen and use standard blocks for support ...
what should be first??5/16/2008
  Q: I have the tranches for the low-lying (maybe four course) privacy/decorative walls. They are about ...
  A: If you ran a string to mark the trench and pillars, then you can put up your pillars first. It is ...
drainage weirdness5/16/2008
  Q: Well hello there! I said I wouldn't ask about the steps anymore...haha...I didn't say anything ...
  A: You can slope the patio lightly to a point on the wall and then place a small piece of 2 inch pvc ...
brick step repair5/15/2008
  Q: Is there a guild on building stairs out of bricks? My front steps are deteriorating, (loose mortar)
  A: This a great site with step by instructions and pictures. ...
frostline and block steps5/13/2008
  Q: I know you're sick of hearing from me, but I promise this will be the LAST communication! I live in ...
  A: It is what I am here for. You can ask as much as you need to. Is there any new housing in your ...
cement driveway5/12/2008
  Q: hope you can help me out. I have a cement driveway that is flaking away, the privious owner must ...
  A: There are a good number of sealers you can buy. There are also concrete coatings that can change the ...
Washing newly coated concrete5/11/2008
  Q: I coated my driveway with Behr one part epoxy slate grey concrete and garage coating. I coated it ...
  A: I would be careful of not following their instructions. Did the sealer recommend waiting 30 days on ...
removing antique marble mantles5/11/2008
  Q: I'm getting ready to sell the family home of fifty years. The home is circa 1850 with four ...
  A: Wow, four marble fireplaces over 150 years old. My best advice is to call a marble and granite ...
slab and decorative wall5/11/2008
  Q: First, thanks for answering. I am planning a front porch set of steps...I already wrote to ...
  A: I am glad I could help. You could call your county building inspectors to ask about footers for ...
Small patio5/10/2008
  Q: I'm laying a small patio for my sister in a small area of her garden where grass doesn't readily ...
  A: We lay pavers on both sand and on mortar. We use mortar when there is concrete or durock under them ...
slab and decorative wall5/8/2008
  Q: First, thanks for answering. I am planning a front porch set of steps...I already wrote to ...
  A: Mostly it depends on how hard the soil is and the water table. The sand goes first and you compact ...
slab and decorative wall5/7/2008
  Q: First, thanks for answering. I am planning a front porch set of steps...I already wrote to ...
  A: You do not need a concrete pad if you can rent a power tamper and compact a sand bed really well ...
Brick crumbling5/1/2008
  Q: My home is about eight years old. The front of the house is 1\4 brick with the remaining wall ...
  A: Eight years seems soon for brick to be crumbling. The mortar shouldn't have even cured to full ...
Garage cinder block Wall5/1/2008
  Q: My question has to do with my garage wall. The corner seems to have settled and left about a half to ...
  A: Cook I would recommend cleaning out the foam using the jack and filling with mortar and concrete. ...
Driveway4/30/2008
  Q: I need some help. I want to expand my concrete driveway deep and wide. After this is done however, ...
  A: As long as you use treated 1x4's to wrap the concrete you are pouring up to you should be fine. You ...
parging or pointing a chimney after a roofing job.4/30/2008
  Q: I recently had my roof replaced. The day the mason was to point the bricks below the flashing, he ...
  A: The main issue is if there is a leak who will cover it. Most shingle manufactures cover the ...
tuckpoint4/29/2008
  Q: My budget is limited and I have some gaping HOLES in the mortar in the foundation of my home. My ...
  A: Quikcrete has some ready mixed mortar repair in buckets for smaller repairs. For gaps over 1/2 inch ...
slab for front poch steps4/29/2008
  Q: I wish to pour a 4" slab for my cinderblock/veneer steps. I dug 64"x64"x12"...I will begin my first ...
  A: So far so good. I recommend rebar because the wire mess does not add much strength. You can then ...
masonry steps w/veneer4/29/2008
  Q: Once I have my mason (cinderblocks in place as my infastructure, then backfill the crevasses with ...
  A: I like an inch to inch and a half overhang on steps. much more and it is a trip hazard. Yes you can ...
poor drainage garage floor4/29/2008
  Q: We've just moved into a new home and find that the garage floor is almost level, with low spots that ...
  A: One way is to pour a 2 to 3 inch slab on top of a layer of sand on top of your old slab. The other ...
Cleaning flagstone4/29/2008
  Q: I'm wondering what is the best way to clean flagstone. I've tried pressure washing, which doesn't ...
  A: I usually use something mild like dawn and a sponge. Muriatic acid is about the strongest thing I ...
Mortar mix4/23/2008
  Q: Dan: I plan to repair part of my stone wall, and need to use TypeII cement and sand for the mortar ...
  A: Your welcome I hope I helped or steered you in the right direction. I know that it is formulated for ...
Mortar mix4/22/2008
  Q: Dan: I plan to repair part of my stone wall, and need to use TypeII cement and sand for the mortar ...
  A: Why do you need to use a Typell cement for this kind of wall. When we use a regular portland mortar ...
refacing brick fireplace with fieldstone4/16/2008
  Q: I have a brick fireplace that I've painted a couple of times and it's not making my husband happy! I ...
  A: You have a few options to replace your fireplace with flagstone. Because of the painted brick you ...
Speed block vs. Standard block4/14/2008
  Q: I'm doing a study comparing Standard CMU blocks to H-blocks, a.k.a. "Mortarless Joint Head" a.k.a. ...
  A: This question is a little out of my specialty but I will give you all the help I can. In most ...
Cement pier for pergola post4/14/2008
  Q: I'm planing to start erecting pergola on Thursday. Today is Monday and I just cemented the post ...
  A: I believe you sent this to me in the decks section but it was waiting to be answered in the masonry ...

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