Go Back   InterNACHI Inspection Forum > >

Notices

Student Discussions This is a forum for discussing InterNACHI's Inspection Courses.

Reply
 
Thread Tools
  #3496  
Old 7/18/18, 3:23 PM
Todd Stromdahl's Avatar
Todd Stromdahl Todd Stromdahl is offline
Certified Professional Inspector (CPI)
 
Join Date: May 2006
Location: Fernandina Beach, FL
Posts: 31
Default

Research & Writing Assignment:

fiberglass reinforced asphalt shingles are requires by the manufacturer to have six nails per shingle in high wind locations to meet the manufacturers design requirements for strength. All of the coastal counties in Florida have accepted the six nails per shingle as an installation requirement due to the risk of high winds.

Reply With Quote
Need a home inspection in Vermont? Check out InterNACHI's listing of Vermont certified home inspectors. Or, find a home inspector anywhere in the world with our inspection search engine.
  #3497  
Old 7/18/18, 5:04 PM
Kenneth A. Wiener Kenneth A. Wiener is offline
InterNACHI Member
 
Join Date: Aug 2014
Posts: 6
Default

Inspection & Writing Assignment:

This is a photo of roof shingles in good condition. There are no curling, lifting, and is the first layer. When inspecting roofs we are not required to walk the roof. Shingle are designed to be water resistant not water proof.

"10 Steps to Performing a Roof Inspection" online video course
Reply With Quote
  #3498  
Old 7/18/18, 5:08 PM
Kenneth A. Wiener Kenneth A. Wiener is offline
InterNACHI Member
 
Join Date: Aug 2014
Posts: 6
Default

Research & Writing Assignment:

Inspecting Roof Panel Sheathing
In areas where the wind speed is greater than 130 mph, nails for attaching the roof sheathing to intermediate supports should be spaced 6 inches on center for at least the first 48 inches from the ridges, eaves, and gable end walls. The fasteners should be spaced only 4 inches apart on the panel edge at the gable end wall framing.

Reply With Quote
  #3499  
Old 7/18/18, 7:43 PM
Christopher Kintz Christopher Kintz is offline
InterNACHI Member
 
Join Date: Jul 2018
Posts: 34
Default

Inspection & Writing Assignment:

There are two types of roofs: flat and pitched (sloped). Most commercial, industrial and apartment buildings have flat or slightly sloping roofs. Most houses have pitched roofs. Some roofers work on both types; others specialize. Most flat roofs are covered with several layers of materials. Roofers first put a layer of insulation on the roof deck. Over the insulation, they then spread a coat of molten bitumen, a tar-like substance. Next, they install partially overlapping layers of roofing felt, a fabric saturated in bitumen, over the surface. Roofers use a mop to spread hot bitumen over the surface and under the next layer. This seals the seams and makes the surface watertight. Roofers repeat these steps to build up the desired number of layers, called plies. The top layer either is glazed to make a smooth finish or has gravel embedded in the hot bitumen to create a rough surface. An increasing number of flat roofs are covered with a single-ply membrane of waterproof rubber or thermoplastic compounds. Roofers roll these sheets over the roofs insulation and seal the seams. Adhesive mechanical fasteners, or stone ballast hold the sheets in place. The building must be of sufficient strength to hold the ballast.

"10 Steps to Performing a Roof Inspection" online video course
Reply With Quote
  #3500  
Old 7/18/18, 7:43 PM
Christopher Kintz Christopher Kintz is offline
InterNACHI Member
 
Join Date: Jul 2018
Posts: 34
Default

Research & Writing Assignment:

There are two types of roofs: flat and pitched (sloped). Most commercial, industrial and apartment buildings have flat or slightly sloping roofs. Most houses have pitched roofs. Some roofers work on both types; others specialize. Most flat roofs are covered with several layers of materials. Roofers first put a layer of insulation on the roof deck. Over the insulation, they then spread a coat of molten bitumen, a tar-like substance. Next, they install partially overlapping layers of roofing felt, a fabric saturated in bitumen, over the surface. Roofers use a mop to spread hot bitumen over the surface and under the next layer. This seals the seams and makes the surface watertight. Roofers repeat these steps to build up the desired number of layers, called plies. The top layer either is glazed to make a smooth finish or has gravel embedded in the hot bitumen to create a rough surface. An increasing number of flat roofs are covered with a single-ply membrane of waterproof rubber or thermoplastic compounds. Roofers roll these sheets over the roofs insulation and seal the seams. Adhesive mechanical fasteners, or stone ballast hold the sheets in place. The building must be of sufficient strength to hold the ballast.

Reply With Quote
  #3501  
Old 7/18/18, 9:12 PM
Robert Dale Robert Dale is offline
Student Inspector
 
Join Date: Dec 2016
Posts: 5
Default

Inspection & Writing Assignment:

On the west side of the building it was noted that flashing was missed over garage eaves and water has rotted out sheathing. Repair is recommended from a roofing professional to stop the water penetration through the eaves and to stop any further damage.

"10 Steps to Performing a Roof Inspection" online video course
Reply With Quote
  #3502  
Old 7/18/18, 9:33 PM
Robert Dale Robert Dale is offline
Student Inspector
 
Join Date: Dec 2016
Posts: 5
Default

Research & Writing Assignment:

The use of step flashing at the transition of asphalt roofing to vertical walls and chimneys is important to stop the migration of water and to continue the water shed effect of the roofing system. A single step flashing need to be installed at the end of every horizontal row of shingles when meeting a 90` wall.

Reply With Quote
  #3503  
Old 7/19/18, 10:50 AM
Steven Masters Steven Masters is offline
InterNACHI Member
 
Join Date: May 2018
Posts: 38
Default

Inspection & Writing Assignment:

This is a picture of an intersection of a 5:12 roof with a flat or low slope roof. As you can see from the picture there is 1 layer of shingles and you can see the rake flashing which is over the ice shield. I could tell there was an ice shield from inside the garage in small holes in the decking. I could not however see any metal flashing which would be over the ice shield and under the asphalt shingles. The roof is in good condition and looks newer. The flat roof has roll roofing which looked good.

"10 Steps to Performing a Roof Inspection" online video course
Reply With Quote
  #3504  
Old 7/19/18, 10:58 AM
Steven Masters Steven Masters is offline
InterNACHI Member
 
Join Date: May 2018
Posts: 38
Default

Research & Writing Assignment:

I read an article on measuring roof slope and pitch. Although we are not required to measure the slope and pitch it is good to understand how it affects the roof component. Slope is the incline of the roof expressed as a ratio of vertical rise to horizontal run, where the run is some portion of the span. The ratio is expressed in inches per foot. The pitch is the incline of the roof expressed as a fraction derived by dividing the rise by the span, where the span is the distance between the outside of one wall's top plate to another. For example asphalt shingles should be installed on roof slopes 2:12 or greater. Metal roofs should be installed on roof slopes 3:12 or greater.

Reply With Quote
  #3505  
Old 7/19/18, 12:07 PM
James Hudson James Hudson is offline
InterNACHI Member
 
Join Date: Dec 2017
Posts: 20
Default

Inspection & Writing Assignment:

In this picture is a penetration in the roof. As an inspector this is the first place to suspect where any water penetration will exist on any house. As an inspector I would check it from the roof level and from the attic level too. After that any place where the roof meets the wall would be the second place to look for leaks. As always you should try to get into the attic to see water damage if any.

"10 Steps to Performing a Roof Inspection" online video course
Reply With Quote
Reply
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Congratulations to PHPIO... Ontario's new home inspection association. gromicko Canadian Home Inspectors 60 10/22/08 8:07 PM
Chimney flashing photo's needed: brick and stone done correctly kshepard Exterior Inspections 6 10/13/07 8:10 AM
Ice Gaurd membrane dmacy Exterior Inspections 36 6/14/07 12:21 AM
Roof Repair? Maybe NO jhagarty Exterior Inspections 9 2/15/07 1:19 AM

All times are GMT -4. The time now is 12:43 AM.
no new posts