Archive for January, 2011

Care about quality? Not all shears are the same!

January 25, 2011

The Wiss 1225 High Leverage Shear is fast becoming the first choice for the professional single ply installer.

Some of the features include: a bent handle design which adds leverage when cutting extra thick materials.  They have been precision engineered by Wiss to give you longer cutting life, maximum cutting edge hardness and durability.  They feature nickel plating, perfect adjustment and the patented Wiss SET-EASY pivot which enables adjustment of the run of the shears to fit individual preference.  But the most unique feature is the blunt nose blade.  This feature allows the installer to run the blade through the material with out snagging beneath.  And if dropped, won’t puncture the material.

It’s not uncommon for an installer to have multiple pairs on hand to ensure having a sharp edge at all times for clean cut, and for a professional finish. These are the finest quality shears you can buy, and we’ve included them in our Leister Triac-S Kit.

Rainy season reminder – keep your drains clear of debris

January 18, 2011

Lack of a maintenance program can spell disaster if the building owner doesn’t keep his roof drains clean.  Roofs have collapsed under the weight of ponded water that is unable to drain due to blocked or clogged roof drains.

With the rainy season upon us, many building owners are content if their roofs don’t leak, and forgo routine inspections.  If you’re uncomfortable or unwilling to venture up to inspect your roof, call your roofer.  Many offer routine maintenance as part of their service offerings.

If you do have low-lying sections of the roof that are prone to ponding, you can use a product such as the Lexsuco Solar Drain.  The solar powered drain is capable of moving ponded water up to 50′ away to an existing roof drain.

We carry a full line of replacement rings and domes from the major manufacturers such as Zurn, Josam, Marathon, Frank Pattern and Jay R Smith, in addition to copper retro-fit, ABS, and cast iron small and large drain bodies.

Have something that you can’t identify?  We’re experts at tracking down those odd clamping rings and domes.  We can usually figure it out if you can tell us the color, bolt pattern (3 bolt, 4 bolt…open or closed bolt), inside dimensions, outer dimensions, and bolt-to-bolt dimensions along with any casting number you may be able to identify.

Powering your Leister Varimat V2

January 12, 2011

We’ve discussed the power requirements for the Leister Varimat V2 (230V, 4600W).  We’ve talked about the right generator for your V2 (recommended minimum 12kW).  But what if you’re on a job that has “house” power?

We know that most generators run single phase 230, so it’s not a problem.  But when you’re running your power off of the building’s circuits, you can’t be sure.  Many buildings run 3 phase 220-230, which will power on your V2, but soon leave its insides smoldering:

The V2 can ONLY be run off single phase!!

If you’re going to use house power on the job, you need to make sure it’s single phase, and it’s clean (undistorted voltage without notches or spikes.)

If you’re unsure about what type of power is in the building, you should ask the building electrician.  If there isn’t an electrician, you could get a volt meter to see if you’re getting 230 or 208 volts at the output (remember, SINGLE PHASE ONLY!).  Most house power is 208 volts.  The only way for house power to reach 230 volts is for a transformer to be in line with the power source.

The V2 is a 230 volt machine.  If you’re pulling 208 volts and using a 10 gauge 100′ cord, you will drop below 200 volts, which will shut down and/or damage the V2.

All is not lost, however.  You can still use your V2 on 208 volts.  You will need to beef your extension cord up to 8 gauge (instead of 10 gauge) and limit the length to 100′.

It is always best to meter the voltage at the provided source to assure yourself that the power you need is available.

If there’s a transformer and you’re metering 230volts, you can use a 10 gauge extension cord (no longer than 100′) .

Remember: SINGLE PHASE ONLY!!! If you do experience a meltdown, Roofmaster has 4 authorized Leister Service Centers located in Los Angeles, Hayward (Bay Area), Kent (Seattle, WA area), and Decatur (Atlanta, GA area).

AQMD Rule 1147

January 6, 2011

We’ve been deluged with roofers calling and faxing asking about AQMD Rule 1147, and how it applies to their roofing kettles.  Briefly summarized:

Air Quality Management District (AQMD) Rule 1147 – Nitrogen Oxide Reductions from Combustion Sources “applies to various types of equipment which burn fuel, such as ovens, dryers, dehydrators, heaters…and other combustion equipment which release nitrogen oxide (NOx) emissions due to burning of fuel and which require an AQMD permit but are not specifically required to comply with a NOx emission control or limit by District Regulation XI rules.

Effective Jan 1, 2010, owners and operators of all Rule 1147 units will be required to:

  • perform combustion system maintenance in accordance with the manufacturer’s schedule and specifications as identified in the manual and other written materials supplied by the manufacturer or distributor, and
  • maintain on site at the facility where the unit is operated a copy of the manufacturer’s or distributor’s written instructions, retain records of the maintenance activity for a period of not less than three years, and retain emission test records on site, and
  • maintain on each unit a permanent rating plate in an accessible location.

Specifically addressing asphalt manufacturing operations (which tar kettles fall under), the NOx Emission limit is 40ppm @ 3% O², dry or Pound/mmBTU heat input.

The “Notice to Comply” paperwork we’ve seen from customers usually outlines 2 of these 3 points above – maintenance in accordance with the manufacturer’s schedules as identified in the tar pot manual, and maintain a copy of the manufacturer’s manual.

We’ve also heard of inspectors claiming you will need time-meters and non-resttable fuel meters.

To help you comply, here is a copy of the suggested maintenance schedule:
Addendum to Kettle Operating Instructions

Every kettle sold has instructions in the instruction tube.  Print out the copy of the suggested maintenance schedule and keep it in the instruction tube.

As for the permanent rating plate – we rivet on a plate of the front side of every kettle that shows the jet that is used in the kettle burner (amongst other things).  Example:

At this point, you’ve satisfied the Notice to Comply, and will have to go to the AQMD office and get a permit.  Seeing as most kettles are propane burning, and propane is considered a clean burning fuel, there’s been a lot of noise that this is nothing more than a money grab by cash starved agencies.

Update:
We received an advisory notice that the AQMD intends to:

  • Remove the requirements for installation of time meters
  • Remove the requirements for installation of non-resettable totalizing fuel meters if the operator intend to comply with the Rule 1147 NOx emission limits in parts per million (ppm), but still require the fuel meters if the operator intends to comply with the NOx emission limits in pounds per million British Thermal Units (lb/mmBTU)
  • Extend deadlines for demonstrating compliance with the early phases of NOx emission limits by approx one year

If you have questions regarding the proposed amendments, you can contact Wayne Barcikowski – wbarcikowski@aqmd.gov

If you have questions regarding compliance with the rule, you can contact Dr. Cher Snyder – csnyder@aqmd.gov

Do you have any experiences (good or bad) with this new rule?  Any insight or tips you can share with your fellow roofers?  Leave us a comment or drop us an email.  We know this is causing headaches for many Southern California roofers

2010 in review

January 4, 2011

The stats helper monkeys at WordPress.com mulled over how this blog did in 2010, and here’s a high level summary of its overall blog health:

Healthy blog!

The Blog-Health-o-Meter™ reads This blog is doing awesome!.

Crunchy numbers

Featured image

A Boeing 747-400 passenger jet can hold 416 passengers. This blog was viewed about 1,700 times in 2010. That’s about 4 full 747s.

 

In 2010, there were 35 new posts, growing the total archive of this blog to 36 posts. There were 123 pictures uploaded, taking up a total of 13mb. That’s about 2 pictures per week.

The busiest day of the year was October 22nd with 81 views. The most popular post that day was Roofmaster Model 62 Hoist.

Where did they come from?

The top referring sites in 2010 were roofmaster.com, undefined, facebook.com, roofaholic.com, and en.wordpress.com.

Some visitors came searching, mostly for double insulated tools, irish felt, varimat v2, propane tank recertification, and leister varimat v2.

Attractions in 2010

These are the posts and pages that got the most views in 2010.

1

Roofmaster Model 62 Hoist July 2010
1 comment

2

What is Irish Flax Felt? April 2010
1 comment

3

Double Insulated tools March 2010
1 comment

4

Competent Person – What is it, why do we need it? June 2010
1 comment

5

Make-A-Clamp Kits March 2010


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