Installing Mechanically Fastened Or Attached Roofing Systems – Roof Area Preparation

When you start thinking about installing an attached system, you should evaluate the site conditions for any unusual or specialized conditions, before beginning any roofing, inspect the site conditions that might affect the productivity or present any problems in the duration of the job.
Inspect the building structure to make sure the building structure is capable of carrying the weight of a new roofing system. Verify the adequate slope to drain conditions making sure there is positive drainage. Add new drains where needed to eliminate any ponding, which can lead to membrane damage and possible roof collapse.
Correct all the defects in the deck, replacing any damaged decking or substrate that can lessen the overall roof performance. In order to install a roofing system that will perform properly, the deck or substrate must be clean, dry, sound, and smooth. Prepare for the new roof installation properly, new roofs Minnesota Contractor Insurance Requirements will have fewer problems and perform longer if the proper preparations are done. Use this guideline, Remove all of the existing roofing materials unless they are to remain and are in good condition, Also, remove wet or damaged insulation to ensure a good roof installation and to avoid interior damage.
Clean the substrate surfaces cleaning these substrates will get rid of any contaminates. If you are leaving the existing roof in place, remove any blisters and ridges to provide a smooth surface. Cut the existing membrane away from the penetrations and perimeters, this will allow the new membrane to expand and contract independently of existing membrane. Inspect the substrate conditions, perform a fastener pull out test and moisture surveys if needed or required to determine substrate conditions.
Confirm equipment support heights, these must be minimum 8″ to allow proper flashing heights. Raise the flashing height as needed, and flashings that are lower than 8″ have increased potential for any moisture intrusion in the roof system from rain and snow.
Wood nailers are usually 2 x 4′ or larger that are used to connect the roof system components to the structure. Install these wood nailers around roof perimeters and penetrations where needed. Some penetrations such as HVAC curbs may not require wood nailers if they already have a Roofer Looking For Work structural system. Properly installed wood nailers must be wood, #2 grade or better, nominal 5/4″ x 4″ minimum, are staggered when multiple layers are required for greater stability, they must be able to resist 250lbs. force in any direction and have 3 anchors per length minimum.

See also  Roofing Tips - How to Measure a Roof For Shingles

Roof Repair

Avoid Choosing the Wrong Roofing Contractor!

There are many different roofing contractors from which to choose; however, there appear to be mainly two different types of them in a general sense. One type is registered and licensed, while the other type is one who goes door-to-door, offering tempting proposals and quality workmanship at very alluring prices. The only way to be […]

Read More
Roof Repair

Addressing Stucco Failure

Aside from roofing failure, the most common source of moisture entering residential community properties is failure of the siding material. In southern California, most siding consists of stucco. Unfortunately, stucco siding systems leak!Why do builders specify stucco so often?Stucco became popular in the United States in the early 1800’s as an inexpensive and effective means […]

Read More
Roof Repair

Commercial Roofers: Five Tips for Hiring a Good Roofing Company

If the roof of your building needs repair, fixing it quickly could prevent further damage. You should not rush to hire a commercial roofer without doing some homework first. If you do, you may end Classification Of Roof up with roofers who do not have the best record of accomplishment or experience for the job. […]

Read More