Exam (elaborations)
BPI Building Analyst Field Exam Blower Doo questions and answers already solved 2024
- Course
- Institution
BPI Building Analyst Field Exam Blower Doo questions and answers already solved 2024
[Show more]
Seller
Follow
LEWISSHAWN55
Reviews received
Content preview
BPI Building Analyst Field Exam BlowerDoor
What is a Blower Door? - correct answer ✔- a diagnostic tool designed to
measure the airtightness of building and to help locate air leakage sites.
- the fan blows air into or out of the building to create a slight pressure
difference between inside and outside.
- this pressure difference forces air through all holes and penetrations in the
exterior envelope
- the tighter the building (eg. fewer holes), the less air you need from the
blower door fan to create a change in building pressure
- problem spots are easier to find using chemical smoke, an infrared camera
or simply feeling with your hand.
- it can also help you access the potential for backdrafting of natural draft
combustion appliances by exhaust fans and other mechanical devices
- help to determine the need for mechanical ventilation in the house
Basic dynamics of air leakage in buildings - correct answer ✔- for air leakage
(infiltration or exfiltration) to occur, there must be both a hole or crack, and a
driving force (pressure difference) to push the air through the hole.
Five most common driving forces which operate in buildings are: - correct
answer ✔1) STACK EFFECT - warm air rises due to buoyancy & leak out the
top of the building and replaced by colder outside air entering the bottom of
the building. (winter time)
(Reverse stack effect is summer time only)
2) WIND PRESSURE EFFECT - exposed areas will have wind go right it
3) POINT SOURCE EXHAUST OR SUPPLY DEVICES - chimneys for
combustion appliance and exhaust fans push air out of the building when they
are operating
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LEWISSHAWN55. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$19.57. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now