Removal of shingles
estimate for the actual number of squares (not square feet). No estimating or rounding
Replacement of shingles
a) Include waste in
... [Show More] the calculation
-10% - Composite
-15% - wood
b) Round up to the nearest bundle
-Assume 3 bundles per SQ for composite shingles
-Assume 4 bundles per SQ for wood
What do wood shingle estimates always end with?
fourths. .25, .5, .75, .00
What do composite shingle estimates always end with?
thirds. .33, .66, .00
Calculating Hip Roofs
get main body first. extensions second.
Hip roof triangular ends
are calculated when the main roof is calculated b/c a triangle is accounted for that didn't actually exist
When calculating extensions on a hip roof
don't count for the triangle, but don't forget the two parrallelograms remaining (there is a good chance they are identical)
When calculating the main body
Don't assume that you can just find one side of a roof and double it. Why? the rafters might be different lengths
How do you find the height of a hip roof?
the height of the triangle is equal to the length of the rafter that is forming the parallelogram
(only true if the pitch of the roof is identical and the angles on the hip roof are 90 degrees)
Do you round when removing a roof?
No, removal is always the exact number
What calculations can you use to replace?
x1.10 for composite
x1.15 for wood
.33 for composite
.25 for wood
"drop and roll"
the method for estimating carpet
How wide are carpet rolls?
12 feet
What carpet allowance must you make in estimates?
You must add an additional 3" for length. If you forget this, then you get the question wrong!
It is ok to change the way carpet seams are run in a house
False
How do you calculate the removal of carpet
It is the actual square footage
What do Removal of carpet & Replacement of carpet pad have in common?
they both are the actual square footage
Xactimate doesn't calculate waste on what three things?
Carpet (Not carpet pad), need to add waste
Shingles
Vinyl sheath flooring
How much square footage is it to move and replace the carpet pad?
The answer: square footage
To calculate floor removal:
divide up into squares/rectangles and determine specific amount to be removed
To calculate replacement of floor:
1) notice seams in flooring
2) drop and roll a 12' roll of carpet
3) add 3" to length (.25)
To calculate linear feet of trusses
1) are they installed 24" of center?
2) convert 24" to feet
3) length of roof (30ft) / 2ft = 15 (the number of trusses)
4) Add 1 for the truss not yet accounted for: 30/2 = 15. Then 15 +1 = 16. 16 trusses
How much would it cost to replace the linear feet of truss on this roof?
(total number of trusses) X (width of roof w/out overhangs) = linear feet of roof trusses
What section of a truss are you using to calculate linear feet?
the bottom chord...which does not include the overhangs
How thick are stud walls?
4 inches
How do you calculate the painting of walls and ceiling?
You will always have 3 measurements
Baseboards are linear feet
Just add up the length of the walls (openings only matter if they are larger than 3'0 x 6'8" or 20.01)
Category Code (Xactimate)
similar to trade breakdown (DRY = Drywall, RFG - roofing, etc.)
Selector Code (Identifies a specific item within a category)
1/2 = 1/2" drywall, hung, taped floated ready for paint; P = paint - one coat; P2 = paint - two coats
Quality/ Size Ratings
++ Premium Grade
+ High Grade
Average Grade
- Standard Grade (Standard grade is below avg)
< or > refers to size
This is a 3x5 vinyl window, how much would it cost to replace?
Do the math, find its a 15sf window, look up the grade, find the correct size, botta bing
Xactimate descriptions are "general" or average.
False. They are extremely specific. they are literal. If its in there, then its in there. If its not listed, then its not in there. don't assume!!
There are this many squares (41.6) to remove. How much is the removal cost?
Look at price list under "remove" and multiple by that number (31.18): 41.6 x 31.18 = 1297.088
How will they try to trick me in the pricelist?
The line will have some information that is either supposed to be there, or not supposed to be there. It's literal. don't let them trip me up!
Trapezoid
[(Base1 + Base 2) / 2] x Height
Triangle
1/2 (base x height)
Circle
PAI-r-squared (r squared first, then multiply by PAI)
Rectangle
base x height
What size door (any opening) do we deduct for?
3'0" x 6'8"
What is the square footage of a 3'0x6'8" door?
20.01
Where do we take a measurements from on an opening?
inside jamb to inside jamb
What are out of the other ordinary openings?
fireplace/mantle, back splash, bookcase, garage door
Opening?
A place there is no trim. Only deduct for 3/0x6/8
When estimating doors
include the door (and all related items) to the room it opens in to. This will keep you from having to address it on the other side
Painting around openings and trim
professional painters rarely mask...don't include it in the estimate
What are the parts of a truss?
1) Top Chord (Roof rafter)
2) Bottom Chord (Ceiling Joist)
3) Webbing (Bracing tying top and bottom chords together)
4) Gussets (wood or metal plates that hold joints together)
Span
length of the bottom chord on a truss. Usually the width of a building. does not include eves/overhangs
What is not a component of a truss?
000
O.C. of the trusses
On Center of the framing member is the distance from the center line of one framing member to the center line of an adjacent framing member. Common spacing is 24" or 2'
Length of building
from end wall to end wall. (not overhang)
Total LF of trusses
# of trusses x span of one truss
# of trusses
[length of building in inches / O.C. in inches] + 1
Main parts of a roof
Deck
Rake
Flashing
Valley
Ridge
Dormer
Eave
Sheathing
a)Attached to top chord of truss and supports roof rafters
b) forms the deck
What is solid sheathing used for?
composition shingles because it is smooth in application
What is spaced sheathing usually used for?
wood shingles or shakes
What size spaced sheathing is usually used with 5.5" wood shingles?
5.5"
What is a benefit of spaced sheathing?
the gap between boards allow wood roofs to ventilate and evenly dry
also allows shingles to be nailed to the center of the spaced sheathing board
Can you use solid sheathing for wood shakes/shingles?
Yes. sometimes it is required in order to keep wind driven rain/snow from penetrating the top of the house
What are the three most common composite shingles?
1) T-Lock (angular cuts)
2) 3 tab (plain jane)
3) Laminated (give a layered...wood like look)
What are comp shingles made of?
fiberglass or asphalt-saturated embedded with mineral annuals
What is the weight base of comp shingles?
100 sf or 1 square
3 Tab Butt Square facts:
a) 3 bundles per square
b) range from 200 to 240 lb
c) light to medium weight shingles
Laminated Shingles facts:
a) AKA "Architectural" shingles
b) "layed" look like a wood roof
c) range from 250-500 lb
d) come in 3 or 4 bundles per square
e) medium to heavy weight
Shingle test question: it is possible to buy 3 or 4 bundles per square
True
What type of fiberglass roof can be rigid? corrogated or greenhouse?
I have no idea, but its a test question
Wood shingle facts:
a) manufactured in random widths
b) typical widths are 16, 18, or 24"
c) Butt ends vary in thickness from 1/2" to 3/4" but are uniform for a shingles length
d) Taper sawn in order to lay flat
Wood Shake Facts:
a) Hand split, taper split, or straight split
b) All "split" surfaces are rough
d) "Hand split and resawn" have a sawn or smooth back and rough face (smooth back lay flatter)
e) widths are random
What are standard lengths of wood shakes?
18 or 24"
How many bundles per square do wood shakes/shingles come in?
4
What are rigid roofing materials? [Show Less]