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About Brad Zacharia
(Top Expert on this page)

Expertise
All aspects of residential Roofing. This includes shingles and flat (low slope) roofs. I have knowledge in the installation as well as the design of roofs from an engineering standpoint.

Experience
I have been doing roofing for 40 years. This was my father's business and I took it over in 1980.

Publications
I have written responses to artcles that I felt needed a response to and those responses have been published in roofing trade magazines.

Education/Credentials
BSEE Drexel University
www.ZachariaRoofing.com
   

You are here:  Experts > Home/Garden > Home Improvement/Repair > Roofing

SubjectDate AskedExpert

replace flat tar and gravel roof on commercial building11/19/2009Tom Souza
  Q: what is better to use tpo or bitumen matiriel to replace it with or none of the above please advice ...
  A: I am from Northern Calif. I think you will get a better idea if you call a roofing supply company in ...
Clay tile roof11/19/2009Bruce A. Ryan II, RRO
  Q: What is the expected life span of a clay tile roof? The location is Denver, Colorado, a semi-arid ...
  A: Karla, You might get into trouble trying to estimate a roof life on an existing building without ...
Condensation in Attic11/19/2009Michael J. Owen
  Q: Prior to purchasing our home in NE Ohio, mold was found in attic. The mold was medigated and the ...
  A: Without being able to physically see and inspect your house, it is difficult to try and figure out ...
Clay tile roof11/19/2009Bruce A. Ryan II, RRO
  Q: What is the expected life span of a clay tile roof? The location is Denver, Colorado, a semi-arid ...
  A: Klara, The life of your clay tile roof is going to depend on many factors. To start, the average ...
tamco shingle11/19/2009JD Shoemaker
  Q: ehat is the measurment of a tamco shingle
  A: ..you did not say if you want three tab style or dimensional..and also if you wanted METRIC cut vs ...
Roof, brick, window leak, HELP PLEASE11/19/2009Brad Zacharia
  Q: I have a bay window in my kitchen. The bay window is on the first floor. There are two windows ...
  A: You're shocked at workers today? Why, I'm shocked! The picture is too far away for me to see any ...
roofing, ondura11/19/2009Tom Petrilli
  Q: Is ondura (or fiber/asphalt)a good idea for a roof over. My roof is over 15 years old and I want to ...
  A: I've never installed Ondura; but I've torn it off before. It seems to be a heavy asphalt impregnated ...
underlayment and ventilation11/18/2009Brad Zacharia
  Q: I am getting so confused with all these estimates. It's hard to compare apples to apples. One says ...
  A: If you don't get snow then you don't need Ice and Water Shield which is what the self-stick stuff ...
Metal Ridge cap on Slate Roof11/17/2009Brad Zacharia
  Q: The roofer I hire told me that a metal ridge cap cannot be attached to the slate roof because it ...
  A: Slate roofs generally do not have a ridge cap. Your home inspector is basically a handyman and can't ...
Reroofing11/17/2009Tom Souza
  Q: Our roof is 19 years old in fair condition, it probably is a 30 year composition roof, but we are ...
  A: Using the titanium is good and installing the tile over it is also good, When putting tile on the ...
roofing11/17/2009JD Shoemaker
  Q: galvalume versus painted panels pros &cons
  A: Prepainted panels come with a Kynar 500 finish...carries 25 year warranty! Unpainted will begin to ...
roofing11/16/2009Brian Atkins
  Q: in the state of Wisconsin can you shingle over 1 layer of asphalt with another
  A: I believe you could. Most cities or counties do allow you to do one roof over. But this is a ...
ridge vent11/15/2009Michael J. Owen
  Q: We had our roof replaced this year and had a ridge vent installed for the first time. The roofer ...
  A: NO. Holy Moly that was easy. Just my British sense of humor. Seriously though. Providing the ...
Roofing supplies left out in the rain11/15/2009JD Shoemaker
  Q: My roofer had to stop the job due to weather. He left all of the supplies uncovered while it rained ...
  A: When a jobsite gets disrupted due to weather(snow,rain,cold,it can look chaotic and very unsettling ...
flat roof insulation11/14/2009Todd E. Miller
  Q: I have recently had a rubber roof membrane replaced on a flat roof over a room on my house. The ...
  A: I am assuming this area is not vented and furthermore that there is probably no good way to vent it. ...
clearing out clogged gable vents11/13/2009Michael J. Owen
  Q: We realized that the mold starting on the inside of the plywood sheathing of our attic is due to the ...
  A: I'm not sure I fully understand your problem. Normally, with gable vents, they are quite accessible ...
Roof replacement11/13/2009Dan Merrill
  Q: Dan I am looking at 5 apartment buildings of about 9 units each with hi pitched roofs. orginally ...
  A: Sorry about the slow response. The International Residential Code, which is the Building code that ...
Installation of pipe flashings for shingle roof11/13/2009Tom Petrilli
  Q: How is the metal flange on a pipe flashing that is exposed over the top of the shingle on the down ...
  A: Jack, Most of the time you don't need any exposed fasteners, any nails through the collar should be ...
GAF/Elk shingles - Prestique XTRA11/13/2009JD Shoemaker
  Q: I have these shingles on my roof, installed two years ago. There is a bubbling to the texture and ...
  A: Well...you are in a tough spot: here is why. ELK merged with GAF...I am not sure if you have a ...
attic furnace & insulation11/12/2009Bruce A. Ryan II, RRO
  Q: I read the question/answer from a Michigan resident with a situation similar to mine, except I do ...
  A: Annie, Simply put, in your climate, you really want to make sure that the insulation is on the cold ...
Roof Leak11/12/2009Todd E. Miller
  Q: I live in a 25 year old, 2-story townhouse. I have neighbors on both sides, so the house has ...
  A: Sorry to hear about your problems. Especially long distance, trying to diagnose this is a guessing ...
ponding on flat roof11/12/2009Brian Atkins
  Q: I live in Arizona, so it doesn't rain much, but when it does, it pours. I have a 32 year old flat ...
  A: Henry's makes a product called HE176 - pond patch. Directions for applications - ...
Venting through ridge vent11/12/2009Tom Petrilli
  Q: I would like to vent the bathroom fan and dryer out through the ridge vent in our roof. It will be a ...
  A: Ian, Each bath/dryer fan should have a separate sealed port to the outside. Just aiming the hose ...
crooked ridge caps11/12/2009Tom Souza
  Q: I have recently paid a roofing contractor for a new roof. the job was completed and I was left ...
  A: A crooked ridge line more than likely should not be a problem, Ridge is like a piece trim or ...
Rubber roof - saturated insulation11/12/2009Brad Zacharia
  Q: New rubber roof summer 2008, installed over non-leaking tar & gravel roof in MA, as a preventative ...
  A: I would need to see pictures. You can't put EPDM on a roof that has asphalt products on it. Also, ...
leak on first floor, but not from a bathroom11/11/2009Brian Atkins
  Q: I have a leak in a first floor bedroom, but have no bathroom upstairs. We noticed a water spot, but ...
  A: Andi, The only thing you can do in that case is cut out a section of the ceiling and see what is ...
tar and gravel roof rplacement11/11/2009Dan Merrill
  Q: We have leaks in our almost 40 year old flat tar and gravel roof. I have tried to fix them but have ...
  A: It sounds like you really got your money’s worth out of your old gravel roof, 40 years is a long ...
laying flagstone on a rubber membrane outdoor mezzanine11/11/2009Bruce A. Ryan II, RRO
  Q: Can you please tell me the best way to go about laying a flagstone patio on an outdoor rubber ...
  A: Marci, Do not attach anything through your roof membrane. Before you bury the membrane, be sure ...
Dark Streaks on Roof11/11/2009Bruce A. Ryan II, RRO
  Q: My roof has dark or even black streaks over most of it running vertically. What can I use to remove ...
  A: Don, The black streaking is usually caused by an algae that thrives on the limestone fillers within ...
Asphalt Shingles11/11/2009JD Shoemaker
  Q: I want to install a red steel roof on my new home, however the price is more than I want to spend. ...
  A: ..WHO-DEY...and Go Bearcats! YES! you are in luck! There are 2 very beautiful red dimensional ...
Roofing11/11/2009Tom Petrilli
  Q: I have two estimates for two flat roofs. one on extension to garage and one over car port. one ...
  A: Joseph, Each material is meant for different situations, so Im a little confused. Liberty is ...
Dormer valley flashing11/11/2009Michael J. Owen
  Q: Can you please show me how to form the termination of the valley flashing of a dormer with a 600mm ...
  A: I am sorry to say that I really can't figure out how to best approach your situation. Without being ...
Sheating a roof11/11/2009Brad Zacharia
  Q: How do you lift 4X8 osb sheating over the rafter tails onto the roof? Right now it is only my ...
  A: Use a ladder or a plank that does not extend much above the roof. Use a rope with a hook or a noose ...
Roof felt11/10/2009Brad Zacharia
  Q: I am an architect in Seattle working on a standard 10:12 roof pitch. We usually say use 30# felt ...
  A: I've never heard of using 60 lb paper for shingles. Most roofers use #15. It's just used for a ...
flat roof problems11/10/2009Brian Atkins
  Q: i have two flat roofs and have notcied that both have leaked (i was told that they need fixing at ...
  A: Unfortunately I have no idea what the going labor or material rate is where you live. The best I ...
My roof has developed a leak its a very old roof so i would like to ask what to do11/10/2009Brad Zacharia
  Q: my roof started leaking rather badly and we can not afford to hire anyone to fix it at the moment i ...
  A: When a shingle roof goes due to age it is usually hundreds of holes by then. If that's the case the ...
roof11/10/2009Tom Petrilli
  Q: the house is a shaley style . the roof is framed with 3x6 every two feet with 2x6 tung and grove ...
  A: Richard, Ive only done one project like this. This was the material we used, it has plywood bonded ...
Roof Inspection11/9/2009Michael J. Owen
  Q: We are selling our house. The home inspector for the buyer stated that he saw shingles ...
  A: Who you gonna call? Roofbusters of course.......Seriously though, unless your manufacturer was one ...
gaf ridge vent11/9/2009Michael J. Owen
  Q: Should all homes have the ridge vent installed? Littleton Colorado, Jefferson county My home does ...
  A: In my opinion, Yes. I believe, as do many others in the trade, that ridge vents are by far the best ...
Rain Noise on EPDM roofing11/9/2009Tom Petrilli
  Q: I have a rubber roof which produces too much noise inside the house when it rains. The roof was ...
  A: Lincoln, You didn't mention what type of roof you had before so I'll assume it was a similar ...

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Questions by
Active Experts:
Dan MerrillJD ShoemakerBruce A. Ryan II, RRO
Todd E. MillerBrad ZachariaTom Petrilli
Michael J. OwenTom SouzaRon Haynes
Brian Atkins  

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