Invitation to Bid: Net-Zero Pilot Project
All documents necessary to submit a bid for this project can be downloaded at the bottom of this page.
Issued: March 9, 2010
Due: March 26, 2010, 5 p.m.
Response: April 2, 2010
PROJECT: One [1] single-family homes in Ignacio, Colorado, estimated to begin construction within
two months of selecting contractors.
SPONSOR: Colorado Housing Incorporated, (CHI), a non-profit affordable housing developer building
in southwest Colorado.
SOLICITATION OF SEALED BIDS: Subject to the conditions contained herein, sealed bids will be
RECEIVED until 5:00 p.m. on March 26, 2010 and then opened. CHI will select contractors by April 2,
2010.
SCOPE OF WORK: Individual scopes of work and associated bid proposal forms are available for each
project phase. They can be downloaded from the bottom of this page.
BID DOCUMENTS: Digital copies of bid sets can be downloaded from the bottom this website. They are
also available for purchase at the following locations:
Cortez: Pioneer Printing; 110 E. Main St; Cortez, CO 81321; (970) 565-3381
Durango: Point to Point Graphics; 600 E 2nd Ave, Ste G; Durango, CO 81301; (970) 259-9225
Pagosa: Old West Press; 2145 Eagle Dr; Pagosa Springs, CO 81147; (970) 731-4760
All print shops have a 24-hour turnaround time for printing requests.
BID SUBMITTAL: The document “Bid Proposal” which accompanies each “Scope of Work” must be
included with all bids. All bids shall be sealed with the project phase clearly labeled on the outside of
the envelope. Sealed bids shall be mailed to: Colorado Housing Inc.; P.O. Box 5918; Pagosa Springs,
CO 81147; and received no later than 5 p.m. on March 26, 2010.
CONTRACT AWARD: The successful bidder will be required to execute a construction contract.
BID PROCESS and SELECTION CRITERIA:
CHI commits to a competitive and fair bidding process in which three or more sealed bids are
requested and evaluated and at most one is awarded based on the selection criteria described below:
Contracts will be awarded on the basis of five factors: Price, Capacity, Time of Completion,
Qualifications, and Experience. Each factor will be rated on a scale of 1 to 5 (lowest to highest) and the
contract will be awarded, under normal circumstances, to the bidder receiving the highest number of
points. Points will be awarded for Bid Proposals meeting or exceeding the minimum standards as
described in the bid documents.
The Owner reserves the right to reject any and/or all Proposals when such rejection is in the interest of
Owner to reject Proposal of Bidder who has not met the prerequisites of the bid proposal, who has
previously failed to perform properly or complete on time contracts of a similar nature; and to reject
proposal of Bidder who is, in the opinion of the Owner, in a position to perform the contract. Owner also
reserves the right to waive any information and technicalities in bidding.
QUESTIONS: Questions regarding the bid documents or the bidding process should be asked at the
pre-bid meeting, scheduled for March 17, 9 a.m. at 117 Romero Ave. in Ignacio. They can also be
submitted in writing by March 17, 2010 at 5:00 p.m. to chibid@centurytel.net or faxed to (970) 264-3308.
Responses to all questions will be collated and posted on this website along with any minor changes
to Bid Scopes, by noon on March 19, 2010.
All documents necessary to submit a bid for this project can be downloaded at the bottom of this page.
Issued: March 9, 2010
Due: March 26, 2010, 5 p.m.
Response: April 2, 2010
PROJECT: One [1] single-family homes in Ignacio, Colorado, estimated to begin construction within
two months of selecting contractors.
SPONSOR: Colorado Housing Incorporated, (CHI), a non-profit affordable housing developer building
in southwest Colorado.
SOLICITATION OF SEALED BIDS: Subject to the conditions contained herein, sealed bids will be
RECEIVED until 5:00 p.m. on March 26, 2010 and then opened. CHI will select contractors by April 2,
2010.
SCOPE OF WORK: Individual scopes of work and associated bid proposal forms are available for each
project phase. They can be downloaded from the bottom of this page.
BID DOCUMENTS: Digital copies of bid sets can be downloaded from the bottom this website. They are
also available for purchase at the following locations:
Cortez: Pioneer Printing; 110 E. Main St; Cortez, CO 81321; (970) 565-3381
Durango: Point to Point Graphics; 600 E 2nd Ave, Ste G; Durango, CO 81301; (970) 259-9225
Pagosa: Old West Press; 2145 Eagle Dr; Pagosa Springs, CO 81147; (970) 731-4760
All print shops have a 24-hour turnaround time for printing requests.
BID SUBMITTAL: The document “Bid Proposal” which accompanies each “Scope of Work” must be
included with all bids. All bids shall be sealed with the project phase clearly labeled on the outside of
the envelope. Sealed bids shall be mailed to: Colorado Housing Inc.; P.O. Box 5918; Pagosa Springs,
CO 81147; and received no later than 5 p.m. on March 26, 2010.
CONTRACT AWARD: The successful bidder will be required to execute a construction contract.
BID PROCESS and SELECTION CRITERIA:
CHI commits to a competitive and fair bidding process in which three or more sealed bids are
requested and evaluated and at most one is awarded based on the selection criteria described below:
Contracts will be awarded on the basis of five factors: Price, Capacity, Time of Completion,
Qualifications, and Experience. Each factor will be rated on a scale of 1 to 5 (lowest to highest) and the
contract will be awarded, under normal circumstances, to the bidder receiving the highest number of
points. Points will be awarded for Bid Proposals meeting or exceeding the minimum standards as
described in the bid documents.
The Owner reserves the right to reject any and/or all Proposals when such rejection is in the interest of
Owner to reject Proposal of Bidder who has not met the prerequisites of the bid proposal, who has
previously failed to perform properly or complete on time contracts of a similar nature; and to reject
proposal of Bidder who is, in the opinion of the Owner, in a position to perform the contract. Owner also
reserves the right to waive any information and technicalities in bidding.
QUESTIONS: Questions regarding the bid documents or the bidding process should be asked at the
pre-bid meeting, scheduled for March 17, 9 a.m. at 117 Romero Ave. in Ignacio. They can also be
submitted in writing by March 17, 2010 at 5:00 p.m. to chibid@centurytel.net or faxed to (970) 264-3308.
Responses to all questions will be collated and posted on this website along with any minor changes
to Bid Scopes, by noon on March 19, 2010.
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BUILDING COMMUNITIES~BUILDING HOMES~BUILDING SKILLS
Invitation to Bid - Ignacio
|
BID DOCUMENTS - download here
| Bids are currently being reviewed and selected. A letter will be distributed to all contractors once bid awards have been announced. |
Please Note: Proposals for this project are requested to remain valid for 45 days. Also, Contractors are
welcome to submit bids for a portion of a Scope of Work, particularly for material bids.
welcome to submit bids for a portion of a Scope of Work, particularly for material bids.
Net-Zero Energy Pilot Project
All documents necessary to submit a bid for this project can be downloaded at the bottom of this page.
Issued: March 9, 2010
Due: March 26, 2010, 5 p.m.
Response: April 2, 2010
NEW SCOPES OF WORK:
New Scopes of Work have been posted at the bottom of the page for Painting and Stucco.
MODIFIED SCOPES and PROPOSAL FORMS:
The Scope of Work and Proposal Forms for Solar Thermal Contractors have been modified slightly
and are posted at the bottom of the page. Also see the question below related to the heating system.
General:
Q: Can we bid a portion of a Scope of Work?
A: Yes, bids for a portion of a Scope of Work will be accepted for material bids. Any labor described in a
Scope of Work must be bid and performed in full.
Excavation:
Q: What needs to be included in the “contingency for digging in frozen ground” field in the Bid Proposal
Form?
A: You can leave that item blank as it would be highly unlikely that we would encounter frost by the time
we start construction which we are hoping will occur around the beginning of June.
Q: There sure is a lot of dirt. Can some of it be moved to the edges of the site, partially filling in the
perimeter ditches while maintaining site drainage?
A: It is very likely that some of the fill will be able to remain on the site, and an alternate disposal
location closer to the building site could also be identified. Regardless, please bid removing the total
quantity of fill shown to the identified location as indicated in the construction documents.
Q: A lot on the other side of the same subdivision had utilities as far down as 20’. How do we take this
possibility into account in our bids?
A: Price your bid assuming standard utility depths and note the depth you are assuming in your
proposal. If any unexpected or extraordinary conditions are encountered while digging, we will handle
the circumstances accordingly.
Concrete:
Q: The placement of the foundation perimeter insulation requires excessive excavation and potential for
sloughing problems. Could an 8” footer down to frost depth be poured instead?
A: No, the foundation detail has to remain as shown. The width of the footer is determined by soil
bearing pressure. If the footer were to extend down to frost depth, the footer would still have to be
significantly wider than 8”. If it could be narrowed at all, it could only be reduced by 1-2”.
Finishes:
Q: Are framers expected to paint? What is the exterior finish, and are the framers expected to install it?
A: We added Scopes of Work for both painting and stucco application. Framers are not expected to
complete these tasks.
Solar Thermal and Domestic Hot Water:
Q: The specified boiler heats the radiant coils and supplies domestic hot water. Is this specification
implying that potable water should be used for the the in-floor radiant heat?
A: No. We would like to re-phrase the specification to read “high-efficiency boiler with domestic hot
water capabilities.”
Q: The design requirement CHI has proposed – to size a solar thermal system “such that average
solar thermal production can offset 100% of the hot water demand of the heat and domestic hot water
source over a year” – would require such a large system that the utility room would have to be twice as
big, solar panels would require twice as much roof area, and the system cost would exponentially
increase beyond what CHI typically pays. Is this really what you want?
A: After reading the answer below in full, please make your own judgement as to what system to
propose that would be most feasible for CHI to implement affordably, over time, while getting as close
as possible to our goal of net-zero energy consumption even if we don’t get all the way there.
This house was originally designed using a geothermal system for the radiant heat source. We could
not get the grant funding we needed to make Plan A work, so we are moving on to Plan B.
Without a geothermal system, our options for generating the energy we consume consist of solar-
thermal and photovoltaic. The PV array shown on the roof will accommodate all appliances except a
heat and hot water system. A domestic hot water system has been estimated to require 1-2 panels.
The only system unaccounted for is the heating system.
We are essentially asking solar-thermal contractors to propose the smartest heating system they see
fit, making use of in-slab radiant heat coils, and getting as close as possible to the goal of being able
to generate the energy consumed by the system they propose.
We would like to rescind the specification described in the construction documents – A2.1, Mechanical
System Notes, #2 – and replace it with the following guidelines:
We recognize that we are putting a lot of responsibility on the experience and creativity of local
contractors, so show us what you can do!
All documents necessary to submit a bid for this project can be downloaded at the bottom of this page.
Issued: March 9, 2010
Due: March 26, 2010, 5 p.m.
Response: April 2, 2010
NEW SCOPES OF WORK:
New Scopes of Work have been posted at the bottom of the page for Painting and Stucco.
MODIFIED SCOPES and PROPOSAL FORMS:
The Scope of Work and Proposal Forms for Solar Thermal Contractors have been modified slightly
and are posted at the bottom of the page. Also see the question below related to the heating system.
General:
Q: Can we bid a portion of a Scope of Work?
A: Yes, bids for a portion of a Scope of Work will be accepted for material bids. Any labor described in a
Scope of Work must be bid and performed in full.
Excavation:
Q: What needs to be included in the “contingency for digging in frozen ground” field in the Bid Proposal
Form?
A: You can leave that item blank as it would be highly unlikely that we would encounter frost by the time
we start construction which we are hoping will occur around the beginning of June.
Q: There sure is a lot of dirt. Can some of it be moved to the edges of the site, partially filling in the
perimeter ditches while maintaining site drainage?
A: It is very likely that some of the fill will be able to remain on the site, and an alternate disposal
location closer to the building site could also be identified. Regardless, please bid removing the total
quantity of fill shown to the identified location as indicated in the construction documents.
Q: A lot on the other side of the same subdivision had utilities as far down as 20’. How do we take this
possibility into account in our bids?
A: Price your bid assuming standard utility depths and note the depth you are assuming in your
proposal. If any unexpected or extraordinary conditions are encountered while digging, we will handle
the circumstances accordingly.
Concrete:
Q: The placement of the foundation perimeter insulation requires excessive excavation and potential for
sloughing problems. Could an 8” footer down to frost depth be poured instead?
A: No, the foundation detail has to remain as shown. The width of the footer is determined by soil
bearing pressure. If the footer were to extend down to frost depth, the footer would still have to be
significantly wider than 8”. If it could be narrowed at all, it could only be reduced by 1-2”.
Finishes:
Q: Are framers expected to paint? What is the exterior finish, and are the framers expected to install it?
A: We added Scopes of Work for both painting and stucco application. Framers are not expected to
complete these tasks.
Solar Thermal and Domestic Hot Water:
Q: The specified boiler heats the radiant coils and supplies domestic hot water. Is this specification
implying that potable water should be used for the the in-floor radiant heat?
A: No. We would like to re-phrase the specification to read “high-efficiency boiler with domestic hot
water capabilities.”
Q: The design requirement CHI has proposed – to size a solar thermal system “such that average
solar thermal production can offset 100% of the hot water demand of the heat and domestic hot water
source over a year” – would require such a large system that the utility room would have to be twice as
big, solar panels would require twice as much roof area, and the system cost would exponentially
increase beyond what CHI typically pays. Is this really what you want?
A: After reading the answer below in full, please make your own judgement as to what system to
propose that would be most feasible for CHI to implement affordably, over time, while getting as close
as possible to our goal of net-zero energy consumption even if we don’t get all the way there.
This house was originally designed using a geothermal system for the radiant heat source. We could
not get the grant funding we needed to make Plan A work, so we are moving on to Plan B.
Without a geothermal system, our options for generating the energy we consume consist of solar-
thermal and photovoltaic. The PV array shown on the roof will accommodate all appliances except a
heat and hot water system. A domestic hot water system has been estimated to require 1-2 panels.
The only system unaccounted for is the heating system.
We are essentially asking solar-thermal contractors to propose the smartest heating system they see
fit, making use of in-slab radiant heat coils, and getting as close as possible to the goal of being able
to generate the energy consumed by the system they propose.
We would like to rescind the specification described in the construction documents – A2.1, Mechanical
System Notes, #2 – and replace it with the following guidelines:
- Heat source must be high-efficiency.
- Heating system can be designed to take advantage of solar-thermal, photovoltaic, or any other
renewable energy generation method. - Heating system in combination with the renewable energy system should be sized to come as
close to the goal of a net-zero system as possible. - Heating system must be designed to be renewable-ready (i.e., solar thermal-ready, pv-ready).
- Installation cost at the time of construction should be as close as possible to the installation
cost for a typical 1248 SF residence. - Installation of any and all renewable energy sources, should be able to be installed after
construction completion. The ability to phase installation is critical.
We recognize that we are putting a lot of responsibility on the experience and creativity of local
contractors, so show us what you can do!