Man thank you after watching you break down every formula I realized on certain roofs I was only doing it half right, thanks for being precise in your explanation of the diagrams. One thing that did confuse me is when you said measuring a hip is base x hight, x1 half and that's your answer. Actually it's base x hight then divide your answer in half. Again thank you for breaking down how to measure the different roofs. My name is Jim Adkins I'm on my wife's you tube page. I work for durst roofing in Youngstown Ohio

@BenGromicko

3 жыл бұрын

Thanks for the feedback. Glad it was helpful.

Perfect! I want to thank you Sir for simplifying which in some cases can become a complex process. You have made it easy for me to calculate the square footage of my roof and converting that to the number of squares needed.

@BenGromicko

3 жыл бұрын

Glad it helped! Thank you for watching. Feel free to reach out to us for help any time at www.nachi.org/contact.

Best roofing measure video I've seen, thanks for sharing

@BenGromicko

5 жыл бұрын

Thank you for the feedback. We appreciate it.

Ben this video most definitely refresh my memory, I almost grab my pen and paper and started to make up my own measurements 😂😂. Thank you for making this video. Very easy. Very simple

@BenGromicko

5 жыл бұрын

Thank you. I'm glad to hear that you find it a valuable.

Hi Ben, excellent job with the videos. You are a true teacher!

@BenGromicko

6 жыл бұрын

Thank you for the feedback.

Omgosh, thank you, thank you, thank you.. This is exactly what I was looking for. Now I can go backup and measure my own roof correctly and accurately. Well as soon as the snow is gone. This has been very valuable. Now if I can just figure out how to sketch it in Xactmate with all the different roof elevations!! One step at a time!!! Thanks again!!

@BenGromicko

4 жыл бұрын

You're welcome.

This video was just what I needed! Thank you!

@BenGromicko

5 жыл бұрын

Thank you. Glad to liked it. We have more on www.nachi.org/tv/

Thank you for taking the time to show this sir!

@BenGromicko

4 жыл бұрын

You're welcome. Thanks for watching, Junio.

Thank you so much Ben! IT's so easy and to the point!

@BenGromicko

5 жыл бұрын

You're welcome.

very straightforward and professionally done. Bravo ! kiss

@BenGromicko

7 жыл бұрын

Hm. Yes.

Thank u so much,i just can't stop watching you.This help my knowledge

@BenGromicko

2 жыл бұрын

So nice of you

You rock. Very simple. Very informative. Very educative

@BenGromicko

2 жыл бұрын

I appreciate that!

Nice video keep it up this video was crystal clear on how to learn to estimate a roof. Thank you

@BenGromicko

6 жыл бұрын

Thank you, HardGamer. We have a ton of roof training resources online at www.nachi.org/3c.htm

Thank you for this easy to understand instructional!

@BenGromicko

4 жыл бұрын

Glad it was helpful!

THAT WAS HELLA INFORMATIONAL!!!! THANKS SO MUCH!!!!!

@BenGromicko

7 жыл бұрын

You're welcome, J B.

Thank you for making this so simple even some one like myself can understand it.

@BenGromicko

2 жыл бұрын

Glad it was helpful!

This benefits me greatly. Thanks a million

@BenGromicko

3 жыл бұрын

You're very welcome!

Very help full. Thanks for sharing your power.

@internachi

9 жыл бұрын

You're welcome.

@BenGromicko

4 жыл бұрын

You're welcome. It's not often I share my power. :)

Simple and well done. Thank you

@BenGromicko

2 ай бұрын

You are welcome!

Good evening sir Thank you for demonstration & it will help me a lot you doing very your good job,keep up your demonstration & tutorial thank you,

@BenGromicko

5 жыл бұрын

Thank you, Shofiq Ali.

@firdoaskhan6656

4 жыл бұрын

Thank you sir this is what i need today in urgent.

That was very helpful, Thank you

@BenGromicko

7 жыл бұрын

You got it. Glad you enjoyed it, Josh. We have a ton more videos on www.nachi.tv

Thank you can't believe how many years have been doing this and I still forget this equation

@BenGromicko

5 жыл бұрын

Nice. Thanks for the feedback, Devon.

Wawww thank you sir I feel like you push my life forward after I take my time to understand

@BenGromicko

2 жыл бұрын

You're most welcome.

Very informative, thank you so much.

@BenGromicko

2 жыл бұрын

You're welcome.

Thank you sir for this video you shared

@BenGromicko

2 жыл бұрын

So nice of you

Awesome video pal.

@BenGromicko

4 жыл бұрын

Thanks, pal.

Excellent excellent presentation I sell renovations and roofing I'm still in the learning curve of how to measure roof properly this is very helpful thank you

@BenGromicko

Жыл бұрын

Glad it was helpful!

Thank you Ben.

@BenGromicko

3 жыл бұрын

Welcome!

So helpful!!

@BenGromicko

Ай бұрын

I'm so glad!

You make it very easy :)

@internachi

9 жыл бұрын

Thanks, Flores.

@BenGromicko

4 жыл бұрын

That's our goal. Thank you, Flores x 2.

Well done.

@BenGromicko

7 жыл бұрын

Thanks, RJ.

Nice and easy , thanks

@BenGromicko

3 жыл бұрын

Most welcome 😊. Thanks for watching. Interested in becoming a code inspector? Check out our free online course at forum.nachi.org/t/new-free-online-course-to-become-a-code-inspector/185930.

well said very good

@BenGromicko

3 жыл бұрын

Thank you.

nice video

@BenGromicko

2 жыл бұрын

Thanks

Ben, great information and refreshers. However, I need to be refreshed as to how to do measurements without the roof plans, using the elevation plans. Do you have a tutorial for this?

@BenGromicko

4 жыл бұрын

Great suggestion! We'll have to develop a video for that.

thankyou!!!!!

@BenGromicko

7 жыл бұрын

You're welcome.

A software package has been developed to make such measurements. But knowing how to do this manually is necessary. Knowing the basics first is necessary in any profession.

@internachi

9 жыл бұрын

Agreed.

@supercatforever

8 жыл бұрын

+RoofLogic what software is that

@RooflogicCA

8 жыл бұрын

Moises Perez www.roofcad.com

@supercatforever

8 жыл бұрын

RoofLogic thanks.

@BenGromicko

4 жыл бұрын

Agreed.

When you do trapazoids that are equal in length you dont need to multiply by .5.....16.3+10*5 gives you the square feet for both. What happens is when you divide by .5 you are just getting one side and then you do the same for the other and then add them, seems redundant. None the less great video, I learned something new today

@BenGromicko

3 жыл бұрын

Nice.

Same to you sir

@BenGromicko

4 жыл бұрын

You're welcome.

Nick, multiplying something by 1/2 or dividing by 2 equals the same number... Example : 100 divided by 2 = 50 or 100 x .5 (1/2) = 50... So, you can do it either way...

@internachi

9 жыл бұрын

Thanks, Matt.

@BenGromicko

4 жыл бұрын

Thank you.

Could you combine the overlap of A3 gable and main house as (60x10) and do the remaining gable as rectangular measurement (10x10) to avoid the subtracting step? Thank you for the very informative video.

@BenGromicko

3 жыл бұрын

Yes I can, Thanks for watching.

Yes expanding on what Eric Brennan Said when talking about trapezoid in the beginning you said Base 1+Base 2 divided by 2 at the end you in the final summary of all the calculations it says Base 1 + Base 2 x 1/2 and at the end you say the same thing but it shows Base 1+Base 2 divided by 2. Which one is it? Can you please correct this or can someone comment or leave a video note?

@internachi

9 жыл бұрын

Hi, Nick. Dividing by 2 and multiplying by 1/2 is the same thing.

@abidemiadeola1514

6 жыл бұрын

Nick Jumpa (base1 +base2) ×height x 1/2 Note that whenever you multiply by 1/2 you are simply dividing by 2.

@BenGromicko

4 жыл бұрын

Thanks for watching.

This works in simple roofs like a shed roof home but when you have gables and eves and rakes it's tougher I use this sky measure software whe 're you pay 40 to get the aerial Square footage of a home only thing it's not always guaranteed if there's alot of trees covering the home that's the only disadvantage

@BenGromicko

5 жыл бұрын

You're correct, Sean. Can you please post the link to the software that you use (for others to check out and possibly use)? Thanks.

@seandreezy1988

5 жыл бұрын

@@BenGromickoSure thing !

So the software that I'm using is Sky measure powered by core logic, so 80% of U.S. homes sold are included in property imagery, averaging 9 images per home so more than likely it could definitely save you time and money their fees vary I haven't paid but 40$ per home we've done, but it saves a ton of time in the long run they also have an app for easy login access

@BenGromicko

4 жыл бұрын

Thank you for the feedback, Sean.

You said multiply several times for the trapezoid measurement when it's actually dividing by 2.

@internachi

9 жыл бұрын

You can divide by 2 or multiply by 1/2. It's the same.

@wisconsinoutdoorswithwalte277

5 жыл бұрын

This is absolutely the worst explanation of how to measure a roof. You should remove this video immediately

@BenGromicko

4 жыл бұрын

You can divide by 2 or multiply by 1/2. It's the same.

Great video! What if the rectangle has four different measurements??

@BenGromicko

2 жыл бұрын

Good question!

MY HEAD HURTS

@BenGromicko

7 жыл бұрын

Heh. Yep. We tried to make it simple.

@DLTD

4 жыл бұрын

get back down to go pick up the trash ya bum! lol bet you can hardly lay them shings

@timothysmith2243

Жыл бұрын

Lol the lazy stupid modern American worker Vs the old Disappointed jerk Old School worker who complains about the new generation Or the Hispanic workers. That’s what construction is today

Awesome.hey what's up buddy.i have a cuestion .how many bags of ridge are on 92 feet.

@juancastellon4673

5 жыл бұрын

Nice video . master.but is so much for me brain.ja

@BenGromicko

4 жыл бұрын

Thank you for the feedback, Juan.

There is no need for this complexity in calculating the area - it is simply 60x10x2 = 1200 20x10x2 = 400 10x5x2 = 100 6x5x0.5x8 = 120 Total 1820 It is hard to believe that home inspectors would need training on such a basic estimation.

@BenGromicko

7 жыл бұрын

It's far beyond the scope of a home inspection to measure the squares or area of a roof covering. The scope of a home inspection is primarily based upon identifying indications of defects, not estimating or measuring areas of roof covering materials. That job is for the roofing contractor that would be recommended by the home inspector in their inspection report. But we do our best in training our home inspectors on just about everything a contractor would need to know.

So for the trapezoid is it times or divide cause I got two different formulas that’ll give me massively different answers

@BenGromicko

2 ай бұрын

Hm. I'll take a closer look.

Regarding trapezoid. Why can't you take the two triangle areas. Add them to the rectangle area.

@BenGromicko

Жыл бұрын

Could, yes.

In regards to the trapezoid measurements: At time 3:06 you stated (B1 + B2) x H) / 2 to get the sqft. Then at time 6:06 you stated (B1 + B2) x H) x 1/2 to get the sqft?? Which one is correct??

@BenGromicko

9 ай бұрын

Hm. I'll look again.

A-fucking-maxing. Thank you

@BenGromicko

2 жыл бұрын

Okay. Thanks. I think.

Don't the roofing tiles need to overlap at least a little bit? How is this accounted for?

@BenGromicko

11 ай бұрын

Yep.

So how did you multiply that because I got 12.6 x 12.6 = 158.76 ??

@BenGromicko

3 жыл бұрын

Hm. I double check the numbers.

@ 4:00 you said 10 times 8 times 2 = 40 squares. Was that an error or am I all wrong?

@robertadams1960

5 жыл бұрын

Never mind. I got it thanks. I’m thinking divided by 2 for half of the square

@BenGromicko

4 жыл бұрын

Great.

Ben, when you show the East gable at 6:08 in the video you explain the base as 2 different lengths. Why do you show 10 foot and 16.3 and not just a 3rd line showing 26.3 length total. This looks confusing when looking at the roof design. So what your saying is that from the edge of the main roof to the end of the gable is 10ft and the triangular portion length is 16.3 feet? why would you double a length just to subtract the triangular portion. Couldn't you just measure the triangular parts of the roof and do it separately? Then subtract the triangular portion from the main portion of the house? it confuses me how you take two lengths add them together then do your base X height X 1/2. Please let me know why its done this way

@BenGromicko

10 жыл бұрын

The two bases are 16'3" and 10'. (Base1 + Base2) x height / 2

@jeffw7540

10 жыл бұрын

Ben Gromicko oh my goodness. I saw it as 2 bases of 10 and not 2 separate bases due to the triangle outlining on the roof example. I see where you are coming from now

@harrissrnathan

7 жыл бұрын

Jeff W how do you measure one square? 16 squares have to be replaced on a roof how many feet is that

@stevenevangelist5221

2 жыл бұрын

@@harrissrnathan 1600. Square is 10x10. 1600 divided by 100 equals 16

The calculation is not A1, A2 and A3 is not as complex as described. It is simply 60x10x2, 20x10x2 and 5x10x2 or 2100 total. No need to add and subtract the common triangles.

@BenGromicko

8 жыл бұрын

+Mick Mac Thanks, Mick Mac.

@fathertime5680

5 жыл бұрын

Go away, go run your calculations by someone who gives a rats ass. He explained it just fine, your just being petty at this point

@fathertime5680

5 жыл бұрын

That's for you Mick Mac

So the total roof area must always be divided by 100 does this goes for all the roof?

@BenGromicko

2 жыл бұрын

Hm. I'll have to double check what was covered in the video.

@itsmeagain6168

2 жыл бұрын

@@BenGromicko great

You also don't mention starter shingles and roof caps so whoever uses this as a home owner to attempt to do his roof will be short.

@BenGromicko

7 жыл бұрын

Good point, Allen. This video was produced as part of a series of training videos for home inspectors to quickly estimate how big a roof is.

I never knew how many bundles to buy

@BenGromicko

5 жыл бұрын

Cool. Thanks for watching. Hope it was valuable.

You mixed the trapezoid area up do we divide by half or multiply. You straight up did both for trapezoid. Fix this

@BenGromicko

2 жыл бұрын

Hm. Not sure about that mix up. I'll double check.

Just one thing didn't mention adding wast percentage for different roofs different percentages

@BenGromicko

8 жыл бұрын

Hi, Syed. I don't understand. What wasn't mentioned?

@syedhussain3810

8 жыл бұрын

+Ben Gromicko if I measure a roof let say 1000 sq ft I add 10% waste for a gable roof and 15% waste for a hip roof otherwise I would be short on material

@BenGromicko

8 жыл бұрын

Right. This video has nothing to do with calculating the amount of roofing material needed for a roof job.

@nonamedpp

6 жыл бұрын

too advanced for youtube lol

Don we consider the roof angle when measuring roof.. 45 deg, 30 deg.. like that.

@BenGromicko

7 жыл бұрын

Home inspectors may report degree of slope in their inspection reports, but it's not required by the Standards of Practice for Performing a Home Inspection. I submit that most home inspectors would use a ratio to express slope instead of a degree, such as 2:12 or 4:12.

@robinvallier8512

4 жыл бұрын

@@BenGromicko Solar people would be interested in knowing this...

Why couldnt you measure the A1 and measure A3 as LxW and not subtract two triangles per gable?

@Dave-ug1bw

4 жыл бұрын

You could and save several steps and it comes out the same. I believe he showed it his way for those that new.

@BenGromicko

4 жыл бұрын

Yes.

Why multiply 10 & 20 ft by 6 ft 3 in, because I thought it said 16 ft 3 in?

@BenGromicko

Жыл бұрын

square

Di you Givin Roofing Classes?

@BenGromicko

7 жыл бұрын

We have Certified Master Inspector® Instructors who provide online and live classes about roofing. You may be interested in the roof training resources at www.nachi.org/3c.htm

@magdalenaavelar3809

7 жыл бұрын

Yes I did already the exam bout I'do not pass,I'm very apse

@BenGromicko

7 жыл бұрын

Okay, Magdalena. I'm not sure what you are trying to say. But if you want to take the online exam again, you may. Our online inspector exam can be taken again and again, as many times as you want. Members have unlimited access to all of InterNACHI's free, online training and Continuing Education, our recommended list of home inspector courses, our free certification programs, the members-only forum, amazing membership benefits, the Online Inspector Exam, our free Inspector Training App.

@magdalenaavelar3809

7 жыл бұрын

Can you provide for my the good answers abaut the test,Illinois is the Estate where I living,I wonts the Roofing license

@magdalenaavelar3809

7 жыл бұрын

Ok can you please tell my abaut the website I apreciate tha

Your supposed to add 10% for shingles right

@BenGromicko

3 жыл бұрын

Hm. Not sure about that. For like extra mistake coverage?

@bubgibson8852

3 жыл бұрын

@@BenGromicko no for some reason i was thinking you added 10% on shingles I am just asking

I've got a roof with a bunch of different combinations of shapes...

@BenGromicko

4 жыл бұрын

That's a challenge to measure all those shapes on a complicated roof.

@Discovery_and_Change

4 жыл бұрын

@@BenGromicko Yes. I did a best estimate by simplifying the shapes.

Ok

@BenGromicko

10 ай бұрын

Ok. Thanks for watching.

Hi sir

@BenGromicko

2 жыл бұрын

Hello, sir.

I was just asking Google how many squares is in 1,000 cuz I want to get back to working for myselfp

@BenGromicko

Жыл бұрын

Okay. What was the answer?

6:40 that's wrong, you have to get the slope and multiply by the sloped length, not the projection

@BenGromicko

5 жыл бұрын

At that point in the video, we were calculating the area of the planes. Not the slope.

@semsems218

5 жыл бұрын

@@BenGromicko this means you would get the wrong number of squares at 7:58 🙄

Well... I guess I won't be applying for a roofer position anytime soon... I might accidentally overcharge customers with calculation

@BenGromicko

4 жыл бұрын

It's a critical part of running a successful business: calculating profitable fees.

you lot me at trapezoid.

@BenGromicko

4 жыл бұрын

Ha!

I'm shingles work

@BenGromicko

2 жыл бұрын

Good.

18 yr old roofer

@BenGromicko

6 жыл бұрын

Hi, Michael. If you new to the roof inspection business, you may be interested in the online roof training courses we have made available for free to our members at www.nachi.org/3c.htm

Wtf do u mean by half

@BenGromicko

5 жыл бұрын

Not sure, Emmanuel. At what point in the video are you referring to?

@jaydon7882

2 жыл бұрын

@@BenGromicko what do you mean by 1½ with the triangle 📐 formula please explain

So going by this equation for hip roof I only need 1.5 square for one trap, b1 42ft b2 15ft H 15ft, b1 plus b2 x H ÷ 2 for one trap. I need 5 sheets of plywood for bottom course, that 1.5 sq of shingles, total thumbs down

@BenGromicko

2 жыл бұрын

Gotcha.

Best to learn here first so you don’t look so stupid learning on the job

@BenGromicko

Жыл бұрын

Cool. Thanks for watching.

Isn’t this 5th grade math?

@BenGromicko

Жыл бұрын

6th.

I've measured alot of Roofs, in my day. I personally think; you made this sound, more complicated, then it really is. Your graphics, for the trapezoid, were useless. I stopped watching there.

@BenGromicko

5 жыл бұрын

Sorry about that, Marsh.