Job completed for Betty B.
Completion date: December 13, 2021
Location: Arlington, VA
Why did the customer contact us?
The customer needed new attic insulation and a crawl space encapsulation.
Solutions provided:
Remove all accessible blown in and batted fiberglass insulation in two attic spaces. Include removing the mouse droppings and some bat guano near the gable vent. Sterifab to disinfect and treat for mites, lice, and bacteria. Install baffles at the soffit lines and around the storage area. Air seal gaps and conduit li;es for energy efficiency. Install can light covers over the recess lights. Install one attic tent over the entry point for energy efficiency. Blow in new cellulose insulation to R49 (14 inches). Blow under the storage boards as best as possible. One storage board (gypsum board) indicated by the technician will be replaced due to damage. Includes installing stainless steel screen on three louvre vents on the exterior of the home to prevent entry of birds and bats into the attic space.
Crawlspace Encapsulation
In three crawlspaces remove all of the batted fiberglass insulation, old vapor barrier and mouse droppings. Sterifab to disinfect and treat for mites, lice, and bacteria. Put the personal items to the side for the client and place back in after work is complete. Install R11 bora foam board on the exterior walls of the crawlspace. Include install stainless steel screen on the vents to prevent entry of mice into the crawlspace. Block off the vents with bora foam board to prevent stack effect. Spray foam the rim joists with 2 inches of closed cell spray foam. Install two separate air inducers to help condition the crawlspaces. Install dimple shield and 16 mil white vapor barrier on the floor of the crawlspaces. Run the vapor barrier 6 inches up the wall and seam tape to seal. Door on the right side will be replaced with a new composite white door that will be built with no gaps. A 1×4 composite white board will be installed on the open joists just above the right side door to prevent entry of mice. Use clear caulk on other indicated possible entry points to help slow the progress of the mice into the home. Clear caulk will be used on the gaps between the additions, front stoop side gaps, the conduit pipe on the left side of the home, hvac conduit leading to the attic space.
One of the hvac supply lines have been compromised. This indicated 6 inch line will be removed and replaced with a new 6 inch insulated flex line from a different part of the supply trunk line.. The old connection will be sealed after work is finished.
There is no one hundred percent seal out for mice but with a continuous rodent program can Summit control the population of the mice.
