Services

Building Envelope Survey

The purpose of the building envelope survey is  to determine the existing condition of the building cladding, with regard to watertightness and overall assessment, through visual observations.

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The purpose of the building envelope survey is  to determine the existing condition of the building cladding and roofing system, with regard to watertightness and overall assessment, through visual observations. The survey may also include use of our infrared camera and capacitance, as well as limited destructive investigation.  Items to be observed during a survey include the following:

Building Cladding:

  • wall to foundation tie-in
  • cladding (brick units, stucco, etc.)
  • control joints and expansion joints
  • fenestrations and their seals
  • tie-ins of various components and units
  • window systems and their seals

 

Roofing System:

  • decking, as viable from the building interior
  • roofing system
  • roof perimeter construction and flashing systems
  • roof top drainage system and drainage characteristics
  • rooftop equipment and flashing systems
  • roofing penetrations

Visual Roof Survey

A visual roof survey is performed to note any visually identifiable deficiencies that may require repair or replacement.

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A visual roof survey is performed to note any visually identifiable deficiencies that may require repair or replacement.

Prior to initiating a visual roof survey general measurements of the field of roof, rooftop equipment, and drainage system locations are taken. This information is used to generate a roof plan depicting the outline of the roof, general locations of penetrations and equipment, and drainage systems. Also, deficiencies observed during the visual roof survey are annotated on the roof plan.

Core sampling is performed during this survey to determine those components comprising the roofing system, their thicknesses, possible methods of attachment, and their observable condition. Moisture content is described as either wet or dry. Determination of moisture content, percent moisture content by weight or volume, can be determined as part of a laboratory testing.   Our report presents our findings, conclusions, recommendations, and budget estimates for remediating or replacing the roof. Photographs and a color-coded roof plans are also presented in our reports.


Water Spray Test (AAMA 501.2)

The water spray test is performed in general accordance with the American Architectural Manufacturer’s Association (AAMA) 501.2-03 Quality Assurance and Diagnostic Water Leakage Field Check of Installed Storefronts, Curtain Walls, and Sloped Glazing Systems.

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The water spray test is performed in general accordance with the American Architectural Manufacturer’s Association (AAMA) 501.2-03 Quality Assurance and Diagnostic Water Leakage Field Check of Installed Storefronts, Curtain Walls, and Sloped Glazing Systems. The test equipment consists of a Type B-25, #6.030 brass nozzle with a 1/2" FPT as manufactured by RMG Group, LLC. The nozzle is connected to a 3/4" diameter hose with a control valve and a pressure gauge between the nozzle and valve. This test tests the watertight construction of sealant joints.


Leak Investigation

A leak investigation is performed at locations of the roofing membrane, rooftop components, and facility walls suspect for moisture infiltration.

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A leak investigation is performed at locations of the roofing membrane, rooftop components, and facility walls suspect for moisture infiltration. The test consists of connecting a water hose to an exterior water source, and spraying water onto the item being tested. Water is applied systematically, starting at the lowest points of the structure that may allow for moisture entry, to determine the sources of moisture infiltration. Our reports present the methodology, locations that tested positive for water entry, and recommend general scope of work for remediation.

Moisture in a roof or wall system may go unobserved for many years resulting in the accelerated deterioration of the roof or wall system from the inside out. This deterioration may result in: increased heating and cooling costs due to the insulation losing its R-value, increased possibility for damage during a high wind event due to the rusting of fasteners or the deterioration of adhesives; and, increased costs during roof replacement or wall remediation.


Roof Management Database

An annual visual survey of your roof system can be instrumental in extending the service life of your investment, saving you money, creating a peace of mind, and fulfilling warranty requirements.

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An annual visual survey of your roof system can be instrumental in extending the service life of your investment, saving you money, creating a peace of mind, and fulfilling warranty requirements.

Our annual roof observations include user-friendly reports  listing noted deficiencies   with recommended corrective actions,  estimated repair and replacement  budgets, photographs and color coded annotated roof plans showing the locations and quantities of the deficiencies observed.  

Knowing the current condition of your roof system and the expected remaining service life can assist in timely forecasting of repair and replacement budgets.


Pull Testing (ANSI/SPRI FX-1-2001 and ASTM D4541)

Pullout testing is an invaluable test for determining the withdrawal resistance of a fastener from wood, concrete, or steel. Pull test can also be performed of coatings to validate their adhesion.

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Pullout testing is an invaluable test for determining the withdrawal resistance of a fastener from wood, concrete, or steel. Pull test can also be performed of coatings to validate their adhesion. Using our in-house ComTen Industries Model DFG1W100 Pull Tester( with a margin of error of 0.05%, and a pull resistance of up to 1,000 lbs.) These tests are performed in accordance with either ANSI/SPRI FX-1-2001(fastener) or ASTM D4541 (coatings).


Core Sampling

Core sampling is performed to determine those components comprising the roofing system, their thicknesses, possible methods of attachment, and their observable condition. Moisture content is described as either wet or dry. Determination of moisture content, percent moisture content by weight or volume, can be determined as part of a laboratory testing.


Infrared and Capacitance Moisture Testing

Moisture in a roof or wall system may go unobserved for many years resulting in the accelerated deterioration of the roof or wall system from the inside out.

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K&A has the knowledge, experience, skill, and equipment to survey roof and wall systems for latent moisture. Using our in-house equipment that include the T-Insight Infrared Camera, Tramex Moisture Meter, and Delmhorst Moisture Meter, K&A can survey and detect moisture within a variety of roofing systems that include bituminous and single ply membranes, and wall systems such as CMU block, EIFs, and stucco. After the moisture is detected and verified K&A can work with you to develop a scope of work for remediation or replacement that fits within your budget and property goals.


Quality Assurance Observations (ASTM D7186)

During the roofing and waterproofing construction K&A provides full and part-time quality assurance observations of the contractor’s installation of the roofing and/or waterproofing system. These site visits may be performed in a single job-site visit during the week or intermittently throughout the week.

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During the roofing and waterproofing construction K&A provides full and part-time quality assurance observations of the contractor's installation of the roofing and/or waterproofing system. These site visits may be performed in a single job-site visit during the week or intermittently throughout the week.

Material and system installation are compared against the specifications, drawings, submittal, and manufacturer recommendations. Recommended methods for remediating deficiencies are typically made by citing the construction documents. 

Deficiencies observed during our observations that may substantially affect the finished quality of the roof or waterproofing system will be promptly reported the field superintendent for correction. At the completion of the roofing contractor's work, K&A will prepare a punchlist of items to be corrected or completed.

K&A communicates the results of the site visits to the superintendent prior to our departing the project site. A typed report with photographs is e-mailed to the Client approximately 3 days later


Wind Uplift Testing

Using our in-house wind uplift (negative pressure) test chamber, K&A can determine the wind uplift resistance of a roofing system. Our chamber measures 5’x5’ and was manufactured of aircraft aluminum, certified to 410 psf at sea level, and utilizes a digital manometer and deflection readout to obtain accurate test results.

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Damage to roofing systems typically occurs during high wind events in which the wind lifts the roofing system from the substrate or deck. In some cases the roof is completely removed from the structure.

The air pressures that lift an airplane into the air (negative air pressure) are the same pressures that can lift a roof. The ability of a roofing system to resist this uplift is simply called wind uplift resistance.

Insurance companies, engineering companies (such as Factory Mutual Global, FMG), risk management companies, and building owners may want to determine the uplift resistance (expressed in psf) that a roofing system may resist and stay in place.

Using our in-house wind uplift (negative pressure) test chamber, K&A can determine the wind uplift resistance of a roofing system. Our chamber measures 5’x5’ and was manufactured of aircraft aluminum, certified to 410 psf at sea level, and utilizes a digital manometer and deflection readout to obtain accurate test results.

Our tests are performed and recorded in accordance with FMG Data Sheet 1-52 (latest edition). K&A has performed wind uplift tests on both new and existing roofing systems for a variety of clients that include private companies, hospital systems, municipalities, and contractors, as well as other consulting and testing companies


Construction Documents and Bidding Services

K&A can prepare Bid Documents for clients containing the appropriate documents necessary to bid and execute their building envelope work. K&A’s Construction document preparation and bidding services alleviate the hassle and stress from the Owner/Client so that they can focus on other aspects of the building process.

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K&A can prepare Bid Documents for clients containing the appropriate documents necessary to bid and execute their building envelope work. Our Bid Documents typically will contain bidding requirements, contract documents, general and any supplemental conditions, technical specifications, and drawings necessary for the proper bidding, contracting, and completing of the project.

The technical specifications of the Bid Documents will include sections relating to scope of work, planning and schedules, required pre-/post-job submittals, demolition and repair, and building envelope system installation. The scope of work will provide the contractor with a basic overview of the project.

Once the Bid Documents are complete, K&A will conduct a Pre-Bid Conference to distribute the Bid Documents and to answer questions from the prospective bidders pertaining to the work. This Pre-Bid Conference will also include a tour of the property. K&A will issue meeting minutes and any addenda that may be required to the attending contractors. During the bid process K&A will be available to answer questions regarding the Work.

After the bids are received, K&A will provide a bid tabulation at Client’s and will be available to assist in evaluating the contractor's bid submittals.

K&A’s Construction document preparation and bidding services alleviate the hassle and stress from the Owner/Client so that they can focus on other aspects of the building process.


Static Air and Water Testing AAMA 501.2 and ASTM E-331

AAMA 501.2 is a voluntary specification for field testing of newly installed fenestration products. It is typically used for quality assurance and diagnostic water leakage field check of installed storefronts, curtain walls , and sloped glazing.

ASTM E-331 test method is a standard procedure for determining the resistance to water penetration under uniform static air pressure differences. The air-pressure differences acting across a building envelope vary greatly. ASTM, E-311 Test Method is used for water penetration of exterior windows, skylights, doors and curtain walls.


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